From ddac197404f585b8da58df794fc3beb9d08e8cd2 Mon Sep 17 00:00:00 2001 From: Nils Larsch Date: Fri, 10 Mar 2006 23:06:27 +0000 Subject: [PATCH] add initial support for RFC 4279 PSK SSL ciphersuites PR: 1191 Submitted by: Mika Kousa and Pasi Eronen of Nokia Corporation Reviewed by: Nils Larsch --- CHANGES | 16 ++ apps/s_client.c | 123 +++++++++++++ apps/s_server.c | 136 +++++++++++++++ doc/apps/s_client.pod | 10 ++ doc/apps/s_server.pod | 10 ++ doc/ssl/SSL_CTX_set_psk_client_callback.pod | 81 +++++++++ doc/ssl/SSL_CTX_use_psk_identity_hint.pod | 102 +++++++++++ doc/ssl/SSL_get_psk_identity.pod | 63 +++++++ doc/ssl/ssl.pod | 24 ++- ssl/s3_clnt.c | 180 +++++++++++++++++++- ssl/s3_enc.c | 27 +++ ssl/s3_lib.c | 89 ++++++++++ ssl/s3_srvr.c | 158 ++++++++++++++++- ssl/ssl.h | 77 ++++++++- ssl/ssl_asn1.c | 89 +++++++++- ssl/ssl_ciph.c | 39 +++++ ssl/ssl_err.c | 6 + ssl/ssl_lib.c | 114 ++++++++++++- ssl/ssl_locl.h | 36 +++- ssl/ssl_sess.c | 36 ++++ ssl/ssl_stat.c | 30 ++++ ssl/ssl_txt.c | 32 ++++ ssl/ssltest.c | 142 +++++++++++++++ ssl/t1_enc.c | 27 +++ ssl/tls1.h | 38 +++++ test/testssl | 6 + 26 files changed, 1671 insertions(+), 20 deletions(-) create mode 100644 doc/ssl/SSL_CTX_set_psk_client_callback.pod create mode 100644 doc/ssl/SSL_CTX_use_psk_identity_hint.pod create mode 100644 doc/ssl/SSL_get_psk_identity.pod diff --git a/CHANGES b/CHANGES index 9884a479db..807338d5a4 100644 --- a/CHANGES +++ b/CHANGES @@ -4,6 +4,22 @@ Changes between 0.9.8a and 0.9.9 [xx XXX xxxx] + *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members + for the psk identity [hint] and the psk callback functions to the + SSL_SESSION, SSL and SSL_CTX structure. + + New ciphersuites: + PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA, + PSK-AES256-CBC-SHA + + New functions: + SSL_CTX_use_psk_identity_hint + SSL_get_psk_identity_hint + SSL_get_psk_identity + SSL_use_psk_identity_hint + + [Mika Kousa and Pasi Eronen of Nokia Corporation] + *) Add RFC 3161 compliant time stamp request creation, response generation and response verification functionality. [Zoltán Glózik , The OpenTSA Project] diff --git a/apps/s_client.c b/apps/s_client.c index 50e27a0732..138aa3126b 100644 --- a/apps/s_client.c +++ b/apps/s_client.c @@ -108,8 +108,35 @@ * Hudson (tjh@cryptsoft.com). * */ +/* ==================================================================== + * Copyright 2005 Nokia. All rights reserved. + * + * The portions of the attached software ("Contribution") is developed by + * Nokia Corporation and is licensed pursuant to the OpenSSL open source + * license. + * + * The Contribution, originally written by Mika Kousa and Pasi Eronen of + * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites + * support (see RFC 4279) to OpenSSL. + * + * No patent licenses or other rights except those expressly stated in + * the OpenSSL open source license shall be deemed granted or received + * expressly, by implication, estoppel, or otherwise. + * + * No assurances are provided by Nokia that the Contribution does not + * infringe the patent or other intellectual property rights of any third + * party or that the license provides you with all the necessary rights + * to make use of the Contribution. + * + * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN + * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA + * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY + * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR + * OTHERWISE. + */ #include +#include #include #include #include @@ -171,6 +198,69 @@ static BIO *bio_c_out=NULL; static int c_quiet=0; static int c_ign_eof=0; +#ifndef OPENSSL_NO_PSK +/* Default PSK identity and key */ +static char *psk_identity="Client_identity"; +static char *psk_key=NULL; /* by default PSK is not used */ + +static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity, + unsigned int max_identity_len, unsigned char *psk, + unsigned int max_psk_len) + { + unsigned int psk_len = 0; + int ret; + BIGNUM *bn=NULL; + + if (c_debug) + BIO_printf(bio_c_out, "psk_client_cb\n"); + if (!hint) + { + /* no ServerKeyExchange message*/ + if (c_debug) + BIO_printf(bio_c_out,"NULL received PSK identity hint, continuing anyway\n"); + } + else if (c_debug) + BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint); + + /* lookup PSK identity and PSK key based on the given identity hint here */ + ret = snprintf(identity, max_identity_len, psk_identity); + if (ret < 0 || ret > max_identity_len) + goto out_err; + if (c_debug) + BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity, ret); + ret=BN_hex2bn(&bn, psk_key); + if (!ret) + { + BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key); + if (bn) + BN_free(bn); + return 0; + } + + if (BN_num_bytes(bn) > max_psk_len) + { + BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n", + max_psk_len, BN_num_bytes(bn)); + BN_free(bn); + return 0; + } + + psk_len=BN_bn2bin(bn, psk); + BN_free(bn); + if (psk_len == 0) + goto out_err; + + if (c_debug) + BIO_printf(bio_c_out, "created PSK len=%d\n", psk_len); + + return psk_len; + out_err: + if (c_debug) + BIO_printf(bio_err, "Error in PSK client callback\n"); + return 0; + } +#endif + static void sc_usage(void) { BIO_printf(bio_err,"usage: s_client args\n"); @@ -204,6 +294,10 @@ static void sc_usage(void) BIO_printf(bio_err," -crlf - convert LF from terminal into CRLF\n"); BIO_printf(bio_err," -quiet - no s_client output\n"); BIO_printf(bio_err," -ign_eof - ignore input eof (default when -quiet)\n"); +#ifndef OPENSSL_NO_PSK + BIO_printf(bio_err," -psk_identity arg - PSK identity\n"); + BIO_printf(bio_err," -psk arg - PSK in hex (without 0x)\n"); +#endif BIO_printf(bio_err," -ssl2 - just use SSLv2\n"); BIO_printf(bio_err," -ssl3 - just use SSLv3\n"); BIO_printf(bio_err," -tls1 - just use TLSv1\n"); @@ -404,6 +498,27 @@ int MAIN(int argc, char **argv) nbio_test=1; else if (strcmp(*argv,"-state") == 0) state=1; +#ifndef OPENSSL_NO_PSK + else if (strcmp(*argv,"-psk_identity") == 0) + { + if (--argc < 1) goto bad; + psk_identity=*(++argv); + } + else if (strcmp(*argv,"-psk") == 0) + { + size_t j; + + if (--argc < 1) goto bad; + psk_key=*(++argv); + for (j = 0; j < strlen(psk_key); j++) + { + if (isxdigit((int)psk_key[j])) + continue; + BIO_printf(bio_err,"Not a hex number '%s'\n",*argv); + goto bad; + } + } +#endif #ifndef OPENSSL_NO_SSL2 else if (strcmp(*argv,"-ssl2") == 0) meth=SSLv2_client_method(); @@ -599,6 +714,14 @@ bad: goto end; } +#ifndef OPENSSL_NO_PSK + if (psk_key != NULL) + { + if (c_debug) + BIO_printf(bio_c_out, "PSK key given, setting client callback\n"); + SSL_CTX_set_psk_client_callback(ctx, psk_client_cb); + } +#endif if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL|off); else diff --git a/apps/s_server.c b/apps/s_server.c index 583bfccd5c..aeec035c62 100644 --- a/apps/s_server.c +++ b/apps/s_server.c @@ -113,6 +113,32 @@ * ECC cipher suite support in OpenSSL originally developed by * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. */ +/* ==================================================================== + * Copyright 2005 Nokia. All rights reserved. + * + * The portions of the attached software ("Contribution") is developed by + * Nokia Corporation and is licensed pursuant to the OpenSSL open source + * license. + * + * The Contribution, originally written by Mika Kousa and Pasi Eronen of + * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites + * support (see RFC 4279) to OpenSSL. + * + * No patent licenses or other rights except those expressly stated in + * the OpenSSL open source license shall be deemed granted or received + * expressly, by implication, estoppel, or otherwise. + * + * No assurances are provided by Nokia that the Contribution does not + * infringe the patent or other intellectual property rights of any third + * party or that the license provides you with all the necessary rights + * to make use of the Contribution. + * + * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN + * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA + * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY + * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR + * OTHERWISE. + */ /* Until the key-gen callbacks are modified to use newer prototypes, we allow * deprecated functions for openssl-internal code */ @@ -121,6 +147,7 @@ #endif #include +#include #include #include #include @@ -263,6 +290,70 @@ static int enable_timeouts = 0; static long socket_mtu; static int cert_chain = 0; +#ifndef OPENSSL_NO_PSK +static char *psk_identity="Client_identity"; +static char *psk_key=NULL; /* by default PSK is not used */ + +static unsigned int psk_server_cb(SSL *ssl, const char *identity, + unsigned char *psk, unsigned int max_psk_len) + { + unsigned int psk_len = 0; + int ret; + BIGNUM *bn = NULL; + + if (s_debug) + BIO_printf(bio_s_out,"psk_server_cb\n"); + if (!identity) + { + BIO_printf(bio_err,"Error: client did not send PSK identity\n"); + goto out_err; + } + if (s_debug) + BIO_printf(bio_s_out,"identity_len=%d identity=%s\n", + identity ? strlen(identity) : 0, identity); + + /* here we could lookup the given identity e.g. from a database */ + if (strcmp(identity, psk_identity) != 0) + { + BIO_printf(bio_s_out, "PSK error: client identity not found\n"); + goto out_err; + } + if (s_debug) + BIO_printf(bio_s_out, "PSK client identity found\n"); + + /* convert the PSK key to binary */ + ret = BN_hex2bn(&bn, psk_key); + if (!ret) + { + BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key); + if (bn) + BN_free(bn); + return 0; + } + if (BN_num_bytes(bn) > (int)max_psk_len) + { + BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n", + max_psk_len, BN_num_bytes(bn)); + BN_free(bn); + return 0; + } + + ret = BN_bn2bin(bn, psk); + BN_free(bn); + + if (ret < 0) + goto out_err; + psk_len = (unsigned int)ret; + + if (s_debug) + BIO_printf(bio_s_out, "fetched PSK len=%d\n", psk_len); + return psk_len; + out_err: + if (s_debug) + BIO_printf(bio_err, "Error in PSK server callback\n"); + return 0; + } +#endif #ifdef MONOLITH static void s_server_init(void) @@ -339,6 +430,10 @@ static void sv_usage(void) BIO_printf(bio_err," -serverpref - Use server's cipher preferences\n"); BIO_printf(bio_err," -quiet - No server output\n"); BIO_printf(bio_err," -no_tmp_rsa - Do not generate a tmp RSA key\n"); +#ifndef OPENSSL_NO_PSK + BIO_printf(bio_err," -psk_hint arg - PSK identity hint to use\n"); + BIO_printf(bio_err," -psk arg - PSK in hex (without 0x)\n"); +#endif BIO_printf(bio_err," -ssl2 - Just talk SSLv2\n"); BIO_printf(bio_err," -ssl3 - Just talk SSLv3\n"); BIO_printf(bio_err," -tls1 - Just talk TLSv1\n"); @@ -600,6 +695,10 @@ int MAIN(int argc, char *argv[]) #ifndef OPENSSL_NO_TLSEXT tlsextctx tlsextcbp = {NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING}; #endif +#ifndef OPENSSL_NO_PSK + /* by default do not send a PSK identity hint */ + static char *psk_identity_hint=NULL; +#endif #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3) meth=SSLv23_server_method(); #elif !defined(OPENSSL_NO_SSL3) @@ -782,6 +881,27 @@ int MAIN(int argc, char *argv[]) { no_dhe=1; } else if (strcmp(*argv,"-no_ecdhe") == 0) { no_ecdhe=1; } +#ifndef OPENSSL_NO_PSK + else if (strcmp(*argv,"-psk_hint") == 0) + { + if (--argc < 1) goto bad; + psk_identity_hint= *(++argv); + } + else if (strcmp(*argv,"-psk") == 0) + { + int i; + + if (--argc < 1) goto bad; + psk_key=*(++argv); + for (i=0; i as well. +=item B<-psk_identity identity> + +Use the PSK identity B when using a PSK cipher suite. + +=item B<-psk key> + +Use the PSK key B when using a PSK cipher suite. The key is +given as a hexadecimal number without leading 0x, for example -psk +1a2b3c4d. + =item B<-ssl2>, B<-ssl3>, B<-tls1>, B<-no_ssl2>, B<-no_ssl3>, B<-no_tls1> these options disable the use of certain SSL or TLS protocols. By default diff --git a/doc/apps/s_server.pod b/doc/apps/s_server.pod index 7c1a9581d9..8c15addde3 100644 --- a/doc/apps/s_server.pod +++ b/doc/apps/s_server.pod @@ -181,6 +181,16 @@ this option translated a line feed from the terminal into CR+LF. inhibit printing of session and certificate information. +=item B<-psk_hint hint> + +Use the PSK identity hint B when using a PSK cipher suite. + +=item B<-psk key> + +Use the PSK key B when using a PSK cipher suite. The key is +given as a hexadecimal number without leading 0x, for example -psk +1a2b3c4d. + =item B<-ssl2>, B<-ssl3>, B<-tls1>, B<-no_ssl2>, B<-no_ssl3>, B<-no_tls1> these options disable the use of certain SSL or TLS protocols. By default diff --git a/doc/ssl/SSL_CTX_set_psk_client_callback.pod b/doc/ssl/SSL_CTX_set_psk_client_callback.pod new file mode 100644 index 0000000000..573f89a922 --- /dev/null +++ b/doc/ssl/SSL_CTX_set_psk_client_callback.pod @@ -0,0 +1,81 @@ +=pod + +=begin comment + +Copyright 2005 Nokia. All rights reserved. + +The portions of the attached software ("Contribution") is developed by +Nokia Corporation and is licensed pursuant to the OpenSSL open source +license. + +The Contribution, originally written by Mika Kousa and Pasi Eronen of +Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites +support (see RFC 4279) to OpenSSL. + +No patent licenses or other rights except those expressly stated in +the OpenSSL open source license shall be deemed granted or received +expressly, by implication, estoppel, or otherwise. + +No assurances are provided by Nokia that the Contribution does not +infringe the patent or other intellectual property rights of any third +party or that the license provides you with all the necessary rights +to make use of the Contribution. + +THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN +ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA +SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY +OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR +OTHERWISE. + +=end comment + +=head1 NAME + +SSL_CTX_set_psk_client_callback, SSL_set_psk_client_callback - set PSK client callback + +=head1 SYNOPSIS + + #include + + void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, + unsigned int (*callback)(SSL *ssl, const char *hint, + char *identity, unsigned int max_identity_len, + unsigned char *psk, unsigned int max_psk_len)); + void SSL_set_psk_client_callback(SSL *ssl, + unsigned int (*callback)(SSL *ssl, const char *hint, + char *identity, unsigned int max_identity_len, + unsigned char *psk, unsigned int max_psk_len)); + + +=head1 DESCRIPTION + +A client application must provide a callback function which is called +when the client is sending the ClientKeyExchange message to the server. + +The purpose of the callback function is to select the PSK identity and +the pre-shared key to use during the connection setup phase. + +The callback is set using functions SSL_CTX_set_psk_client_callback() +or SSL_set_psk_client_callback(). The callback function is given the +connection in parameter B, a B-terminated PSK identity hint +sent by the server in parameter B, a buffer B of +length B bytes where the the resulting +B-terminated identity is to be stored, and a buffer B of +length B bytes where the resulting pre-shared key is to +be stored. + +=head1 NOTES + +Note that parameter B given to the callback may be B. + +=head1 RETURN VALUES + +Return values from the client callback are interpreted as follows: + +On success (callback found a PSK identity and a pre-shared key to use) +the length (> 0) of B in bytes is returned. + +Otherwise or on errors callback should return 0. In this case +the connection setup fails. + +=cut diff --git a/doc/ssl/SSL_CTX_use_psk_identity_hint.pod b/doc/ssl/SSL_CTX_use_psk_identity_hint.pod new file mode 100644 index 0000000000..b80e25be7e --- /dev/null +++ b/doc/ssl/SSL_CTX_use_psk_identity_hint.pod @@ -0,0 +1,102 @@ +=pod + +=begin comment + +Copyright 2005 Nokia. All rights reserved. + +The portions of the attached software ("Contribution") is developed by +Nokia Corporation and is licensed pursuant to the OpenSSL open source +license. + +The Contribution, originally written by Mika Kousa and Pasi Eronen of +Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites +support (see RFC 4279) to OpenSSL. + +No patent licenses or other rights except those expressly stated in +the OpenSSL open source license shall be deemed granted or received +expressly, by implication, estoppel, or otherwise. + +No assurances are provided by Nokia that the Contribution does not +infringe the patent or other intellectual property rights of any third +party or that the license provides you with all the necessary rights +to make use of the Contribution. + +THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN +ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA +SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY +OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR +OTHERWISE. + +=end comment + +=head1 NAME + +SSL_CTX_use_psk_identity_hint, SSL_use_psk_identity_hint, +SSL_CTX_set_psk_server_callback, SSL_set_psk_server_callback - set PSK +identity hint to use + + +=head1 SYNOPSIS + + #include + + int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *hint); + int SSL_use_psk_identity_hint(SSL *ssl, const char *hint); + + void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, + unsigned int (*callback)(SSL *ssl, const char *identity, + unsigned char *psk, int max_psk_len)); + void SSL_set_psk_server_callback(SSL *ssl, + unsigned int (*callback)(SSL *ssl, const char *identity, + unsigned char *psk, int max_psk_len)); + + +=head1 DESCRIPTION + +SSL_CTX_use_psk_identity_hint() sets the given B-terminated PSK +identity hint B to SSL context object +B. SSL_use_psk_identity_hint() sets the given B-terminated +PSK identity hint B to SSL connection object B. If B +is B the current hint from B or B is deleted. + +In the case where PSK identity hint is B, the server +does not send the ServerKeyExchange message to the client. + +A server application must provide a callback function which is called +when the server receives the ClientKeyExchange message from the +client. The purpose of the callback function is to validate the +received PSK identity and to fetch the pre-shared key used during the +connection setup phase. The callback is set using functions +SSL_CTX_set_psk_server_callback() or +SSL_set_psk_server_callback(). The callback function is given the +connection in parameter B, B-terminated PSK identity sent +by the client in parameter B, and a buffer B of length +B bytes where the pre-shared key is to be stored. + + +=head1 RETURN VALUES + +SSL_CTX_use_psk_identity_hint() and SSL_use_psk_identity_hint() return +1 on success, 0 otherwise. + +Return values from the server callback are interpreted as follows: + +=item > 0 + +PSK identity was found and the server callback has provided the PSK +successfully in parameter B. Return value is the length of +B in bytes. It is an error to return a value greater than +B. + +If the PSK identity was not found but the callback instructs the +protocol to continue anyway, the callback must provide some random +data to B and return the length of the random data, so the +connection will fail with decryption_error before it will be finished +completely. + +=item 0 + +PSK identity was not found. An "unknown_psk_identity" alert message +will be sent and the connection setup fails. + +=cut diff --git a/doc/ssl/SSL_get_psk_identity.pod b/doc/ssl/SSL_get_psk_identity.pod new file mode 100644 index 0000000000..fe6291649c --- /dev/null +++ b/doc/ssl/SSL_get_psk_identity.pod @@ -0,0 +1,63 @@ +=pod + +=begin comment + +Copyright 2005 Nokia. All rights reserved. + +The portions of the attached software ("Contribution") is developed by +Nokia Corporation and is licensed pursuant to the OpenSSL open source +license. + +The Contribution, originally written by Mika Kousa and Pasi Eronen of +Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites +support (see RFC 4279) to OpenSSL. + +No patent licenses or other rights except those expressly stated in +the OpenSSL open source license shall be deemed granted or received +expressly, by implication, estoppel, or otherwise. + +No assurances are provided by Nokia that the Contribution does not +infringe the patent or other intellectual property rights of any third +party or that the license provides you with all the necessary rights +to make use of the Contribution. + +THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN +ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA +SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY +OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR +OTHERWISE. + +=end comment + +=head1 NAME + +SSL_get_psk_identity, SSL_get_psk_identity_hint - get PSK client identity and hint + + +=head1 SYNOPSIS + + #include + + const char *SSL_get_psk_identity_hint(const SSL *ssl); + const char *SSL_get_psk_identity(const SSL *ssl); + + +=head1 DESCRIPTION + +SSL_get_psk_identity_hint() is used to retrieve the PSK identity hint +used during the connection setup related to SSL object +B. Similarly, SSL_get_psk_identity() is used to retrieve the PSK +identity used during the connection setup. + + +=head1 RETURN VALUES + +If non-B, SSL_get_psk_identity_hint() returns the PSK identity +hint and SSL_get_psk_identity() returns the PSK identity. Both are +B-terminated. SSL_get_psk_identity_hint() may return B if +no PSK identity hint was used during the connection setup. + +Note that the return value is valid only during the lifetime of the +SSL object B. + +=cut diff --git a/doc/ssl/ssl.pod b/doc/ssl/ssl.pod index 8391c66650..2b6004ee32 100644 --- a/doc/ssl/ssl.pod +++ b/doc/ssl/ssl.pod @@ -374,6 +374,15 @@ session instead of a context. =item int B(SSL_CTX *ctx, char *file, int type); +=item void B(SSL_CTX *ctx, unsigned int (*callback)(SSL *ssl, const char *hint, char *identity, unsigned int max_identity_len, unsigned char *psk, unsigned int max_psk_len)); + +=item int B(SSL_CTX *ctx, const char *hint); + +=item void B(SSL_CTX *ctx, unsigned int (*callback)(SSL *ssl, const char *identity, unsigned char *psk, int max_psk_len)); + + + + =back =head2 DEALING WITH SESSIONS @@ -650,6 +659,16 @@ connection defined in the B structure. =item int B(SSL *ssl, const void *buf, int num); +=item void B(SSL *ssl, unsigned int (*callback)(SSL *ssl, const char *hint, char *identity, unsigned int max_identity_len, unsigned char *psk, unsigned int max_psk_len)); + +=item int B(SSL *ssl, const char *hint); + +=item void B(SSL *ssl, unsigned int (*callback)(SSL *ssl, const char *identity, unsigned char *psk, int max_psk_len)); + +=item const char *B(SSL *ssl); + +=item const char *B(SSL *ssl); + =back =head1 SEE ALSO @@ -726,7 +745,10 @@ L, L, L, L, -L +L, +L, +L, +L =head1 HISTORY diff --git a/ssl/s3_clnt.c b/ssl/s3_clnt.c index 995c8298b8..237dfb61d9 100644 --- a/ssl/s3_clnt.c +++ b/ssl/s3_clnt.c @@ -121,6 +121,32 @@ * Vipul Gupta and Sumit Gupta of Sun Microsystems Laboratories. * */ +/* ==================================================================== + * Copyright 2005 Nokia. All rights reserved. + * + * The portions of the attached software ("Contribution") is developed by + * Nokia Corporation and is licensed pursuant to the OpenSSL open source + * license. + * + * The Contribution, originally written by Mika Kousa and Pasi Eronen of + * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites + * support (see RFC 4279) to OpenSSL. + * + * No patent licenses or other rights except those expressly stated in + * the OpenSSL open source license shall be deemed granted or received + * expressly, by implication, estoppel, or otherwise. + * + * No assurances are provided by Nokia that the Contribution does not + * infringe the patent or other intellectual property rights of any third + * party or that the license provides you with all the necessary rights + * to make use of the Contribution. + * + * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN + * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA + * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY + * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR + * OTHERWISE. + */ #include #include "ssl_locl.h" @@ -266,7 +292,9 @@ int ssl3_connect(SSL *s) case SSL3_ST_CR_CERT_A: case SSL3_ST_CR_CERT_B: /* Check if it is anon DH/ECDH */ - if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL)) + /* or PSK */ + if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL) + && !(s->s3->tmp.new_cipher->algorithms & SSL_kPSK)) { ret=ssl3_get_server_certificate(s); if (ret <= 0) goto end; @@ -1043,17 +1071,28 @@ int ssl3_get_key_exchange(SSL *s) -1, s->max_cert_list, &ok); - if (!ok) return((int)n); if (s->s3->tmp.message_type != SSL3_MT_SERVER_KEY_EXCHANGE) { +#ifndef OPENSSL_NO_PSK + /* In plain PSK ciphersuite, ServerKeyExchange can be + omitted if no identity hint is sent. Set + session->sess_cert anyway to avoid problems + later.*/ + if (s->s3->tmp.new_cipher->algorithms & SSL_kPSK) + { + s->session->sess_cert=ssl_sess_cert_new(); + if (s->ctx->psk_identity_hint) + OPENSSL_free(s->ctx->psk_identity_hint); + s->ctx->psk_identity_hint = NULL; + } +#endif s->s3->tmp.reuse_message=1; return(1); } param=p=(unsigned char *)s->init_msg; - if (s->session->sess_cert != NULL) { #ifndef OPENSSL_NO_RSA @@ -1087,6 +1126,51 @@ int ssl3_get_key_exchange(SSL *s) alg=s->s3->tmp.new_cipher->algorithms; EVP_MD_CTX_init(&md_ctx); +#ifndef OPENSSL_NO_PSK + if (alg & SSL_kPSK) + { + char tmp_id_hint[PSK_MAX_IDENTITY_LEN+1]; + + al=SSL_AD_HANDSHAKE_FAILURE; + n2s(p,i); + param_len=i+2; + /* Store PSK identity hint for later use, hint is used + * in ssl3_send_client_key_exchange. Assume that the + * maximum length of a PSK identity hint can be as + * long as the maximum length of a PSK identity. */ + if (i > PSK_MAX_IDENTITY_LEN) + { + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, + SSL_R_DATA_LENGTH_TOO_LONG); + goto f_err; + } + if (param_len > n) + { + al=SSL_AD_DECODE_ERROR; + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, + SSL_R_BAD_PSK_IDENTITY_HINT_LENGTH); + goto f_err; + } + /* If received PSK identity hint contains NULL + * characters, the hint is truncated from the first + * NULL. p may not be ending with NULL, so create a + * NULL-terminated string. */ + memcpy(tmp_id_hint, p, i); + memset(tmp_id_hint+i, 0, PSK_MAX_IDENTITY_LEN+1-i); + if (s->ctx->psk_identity_hint != NULL) + OPENSSL_free(s->ctx->psk_identity_hint); + s->ctx->psk_identity_hint = BUF_strdup(tmp_id_hint); + if (s->ctx->psk_identity_hint == NULL) + { + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_MALLOC_FAILURE); + goto f_err; + } + + p+=i; + n-=param_len; + } + else +#endif /* !OPENSSL_NO_PSK */ #ifndef OPENSSL_NO_RSA if (alg & SSL_kRSA) { @@ -1430,12 +1514,13 @@ int ssl3_get_key_exchange(SSL *s) } else { - /* still data left over */ - if (!(alg & SSL_aNULL)) + if (!(alg & SSL_aNULL) && !(alg & SSL_kPSK)) + /* aNULL or kPSK do not need public keys */ { SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR); goto err; } + /* still data left over */ if (n != 0) { al=SSL_AD_DECODE_ERROR; @@ -2104,6 +2189,88 @@ int ssl3_send_client_key_exchange(SSL *s) EVP_PKEY_free(srvr_pub_pkey); } #endif /* !OPENSSL_NO_ECDH */ +#ifndef OPENSSL_NO_PSK + else if (l & SSL_kPSK) + { + char identity[PSK_MAX_IDENTITY_LEN]; + unsigned char *t = NULL; + unsigned char psk_or_pre_ms[PSK_MAX_PSK_LEN*2+4]; + unsigned int pre_ms_len = 0, psk_len = 0; + int psk_err = 1; + + n = 0; + if (s->psk_client_callback == NULL) + { + SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, + SSL_R_PSK_NO_CLIENT_CB); + goto err; + } + + psk_len = s->psk_client_callback(s, s->ctx->psk_identity_hint, + identity, PSK_MAX_IDENTITY_LEN, + psk_or_pre_ms, sizeof(psk_or_pre_ms)); + if (psk_len > PSK_MAX_PSK_LEN) + { + SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, + ERR_R_INTERNAL_ERROR); + goto psk_err; + } + else if (psk_len == 0) + { + SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, + SSL_R_PSK_IDENTITY_NOT_FOUND); + goto psk_err; + } + + /* create PSK pre_master_secret */ + pre_ms_len = 2+psk_len+2+psk_len; + t = psk_or_pre_ms; + memmove(psk_or_pre_ms+psk_len+4, psk_or_pre_ms, psk_len); + s2n(psk_len, t); + memset(t, 0, psk_len); + t+=psk_len; + s2n(psk_len, t); + + if (s->session->psk_identity_hint != NULL) + OPENSSL_free(s->session->psk_identity_hint); + s->session->psk_identity_hint = BUF_strdup(s->ctx->psk_identity_hint); + if (s->ctx->psk_identity_hint != NULL && + s->session->psk_identity_hint == NULL) + { + SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, + ERR_R_MALLOC_FAILURE); + goto psk_err; + } + + if (s->session->psk_identity != NULL) + OPENSSL_free(s->session->psk_identity); + s->session->psk_identity = BUF_strdup(identity); + if (s->session->psk_identity == NULL) + { + SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, + ERR_R_MALLOC_FAILURE); + goto psk_err; + } + + s->session->master_key_length = + s->method->ssl3_enc->generate_master_secret(s, + s->session->master_key, + psk_or_pre_ms, pre_ms_len); + n = strlen(identity); + s2n(n, p); + memcpy(p, identity, n); + n+=2; + psk_err = 0; + psk_err: + OPENSSL_cleanse(identity, PSK_MAX_IDENTITY_LEN); + OPENSSL_cleanse(psk_or_pre_ms, sizeof(psk_or_pre_ms)); + if (psk_err != 0) + { + ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_HANDSHAKE_FAILURE); + goto err; + } + } +#endif else { ssl3_send_alert(s, SSL3_AL_FATAL, @@ -2316,7 +2483,6 @@ int ssl3_check_cert_and_algorithm(SSL *s) #endif sc=s->session->sess_cert; - if (sc == NULL) { SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,ERR_R_INTERNAL_ERROR); @@ -2326,7 +2492,7 @@ int ssl3_check_cert_and_algorithm(SSL *s) algs=s->s3->tmp.new_cipher->algorithms; /* we don't have a certificate */ - if (algs & (SSL_aDH|SSL_aNULL|SSL_aKRB5)) + if (algs & (SSL_aDH|SSL_aNULL|SSL_aKRB5|SSL_kPSK)) return(1); #ifndef OPENSSL_NO_RSA diff --git a/ssl/s3_enc.c b/ssl/s3_enc.c index 4baba2efb5..b4c6f0f19b 100644 --- a/ssl/s3_enc.c +++ b/ssl/s3_enc.c @@ -108,6 +108,32 @@ * Hudson (tjh@cryptsoft.com). * */ +/* ==================================================================== + * Copyright 2005 Nokia. All rights reserved. + * + * The portions of the attached software ("Contribution") is developed by + * Nokia Corporation and is licensed pursuant to the OpenSSL open source + * license. + * + * The Contribution, originally written by Mika Kousa and Pasi Eronen of + * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites + * support (see RFC 4279) to OpenSSL. + * + * No patent licenses or other rights except those expressly stated in + * the OpenSSL open source license shall be deemed granted or received + * expressly, by implication, estoppel, or otherwise. + * + * No assurances are provided by Nokia that the Contribution does not + * infringe the patent or other intellectual property rights of any third + * party or that the license provides you with all the necessary rights + * to make use of the Contribution. + * + * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN + * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA + * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY + * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR + * OTHERWISE. + */ #include #include "ssl_locl.h" @@ -714,6 +740,7 @@ int ssl3_alert_code(int code) case SSL_AD_UNRECOGNIZED_NAME: return(SSL3_AD_HANDSHAKE_FAILURE); case SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE: return(SSL3_AD_HANDSHAKE_FAILURE); case SSL_AD_BAD_CERTIFICATE_HASH_VALUE: return(SSL3_AD_HANDSHAKE_FAILURE); + case SSL_AD_UNKNOWN_PSK_IDENTITY:return(TLS1_AD_UNKNOWN_PSK_IDENTITY); default: return(-1); } } diff --git a/ssl/s3_lib.c b/ssl/s3_lib.c index 6ccd8b1324..aecf6d62a8 100644 --- a/ssl/s3_lib.c +++ b/ssl/s3_lib.c @@ -121,6 +121,32 @@ * Vipul Gupta and Sumit Gupta of Sun Microsystems Laboratories. * */ +/* ==================================================================== + * Copyright 2005 Nokia. All rights reserved. + * + * The portions of the attached software ("Contribution") is developed by + * Nokia Corporation and is licensed pursuant to the OpenSSL open source + * license. + * + * The Contribution, originally written by Mika Kousa and Pasi Eronen of + * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites + * support (see RFC 4279) to OpenSSL. + * + * No patent licenses or other rights except those expressly stated in + * the OpenSSL open source license shall be deemed granted or received + * expressly, by implication, estoppel, or otherwise. + * + * No assurances are provided by Nokia that the Contribution does not + * infringe the patent or other intellectual property rights of any third + * party or that the license provides you with all the necessary rights + * to make use of the Contribution. + * + * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN + * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA + * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY + * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR + * OTHERWISE. + */ #include #include @@ -997,6 +1023,63 @@ OPENSSL_GLOBAL SSL_CIPHER ssl3_ciphers[]={ SSL_ALL_STRENGTHS }, #endif +#ifndef OPENSSL_NO_PSK + /* Cipher 8A */ + { + 1, + TLS1_TXT_PSK_WITH_RC4_128_SHA, + TLS1_CK_PSK_WITH_RC4_128_SHA, + SSL_kPSK|SSL_aPSK|SSL_RC4|SSL_SHA|SSL_TLSV1, + SSL_NOT_EXP|SSL_MEDIUM, + 0, + 128, + 128, + SSL_ALL_CIPHERS, + SSL_ALL_STRENGTHS, + }, + + /* Cipher 8B */ + { + 1, + TLS1_TXT_PSK_WITH_3DES_EDE_CBC_SHA, + TLS1_CK_PSK_WITH_3DES_EDE_CBC_SHA, + SSL_kPSK|SSL_aPSK|SSL_3DES|SSL_SHA|SSL_TLSV1, + SSL_NOT_EXP|SSL_HIGH, + 0, + 168, + 168, + SSL_ALL_CIPHERS, + SSL_ALL_STRENGTHS, + }, + + /* Cipher 8C */ + { + 1, + TLS1_TXT_PSK_WITH_AES_128_CBC_SHA, + TLS1_CK_PSK_WITH_AES_128_CBC_SHA, + SSL_kPSK|SSL_aPSK|SSL_AES|SSL_SHA|SSL_TLSV1, + SSL_NOT_EXP|SSL_MEDIUM, + 0, + 128, + 128, + SSL_ALL_CIPHERS, + SSL_ALL_STRENGTHS, + }, + + /* Cipher 8D */ + { + 1, + TLS1_TXT_PSK_WITH_AES_256_CBC_SHA, + TLS1_CK_PSK_WITH_AES_256_CBC_SHA, + SSL_kPSK|SSL_aPSK|SSL_AES|SSL_SHA|SSL_TLSV1, + SSL_NOT_EXP|SSL_HIGH, + 0, + 256, + 256, + SSL_ALL_CIPHERS, + SSL_ALL_STRENGTHS, + }, +#endif /* OPENSSL_NO_PSK */ #ifndef OPENSSL_NO_ECDH /* Cipher C001 */ { @@ -2018,6 +2101,12 @@ SSL_CIPHER *ssl3_choose_cipher(SSL *s, STACK_OF(SSL_CIPHER) *clnt, continue; } #endif /* OPENSSL_NO_KRB5 */ +#ifndef OPENSSL_NO_PSK + /* with PSK there must be server callback set */ + if ((alg & SSL_PSK) && s->psk_server_callback == NULL) + continue; +#endif /* OPENSSL_NO_PSK */ + if (SSL_C_IS_EXPORT(c)) { ok=((alg & emask) == alg)?1:0; diff --git a/ssl/s3_srvr.c b/ssl/s3_srvr.c index 44b9c9cdac..8859540fa8 100644 --- a/ssl/s3_srvr.c +++ b/ssl/s3_srvr.c @@ -121,6 +121,32 @@ * Vipul Gupta and Sumit Gupta of Sun Microsystems Laboratories. * */ +/* ==================================================================== + * Copyright 2005 Nokia. All rights reserved. + * + * The portions of the attached software ("Contribution") is developed by + * Nokia Corporation and is licensed pursuant to the OpenSSL open source + * license. + * + * The Contribution, originally written by Mika Kousa and Pasi Eronen of + * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites + * support (see RFC 4279) to OpenSSL. + * + * No patent licenses or other rights except those expressly stated in + * the OpenSSL open source license shall be deemed granted or received + * expressly, by implication, estoppel, or otherwise. + * + * No assurances are provided by Nokia that the Contribution does not + * infringe the patent or other intellectual property rights of any third + * party or that the license provides you with all the necessary rights + * to make use of the Contribution. + * + * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN + * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA + * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY + * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR + * OTHERWISE. + */ #define REUSE_CIPHER_BUG #define NETSCAPE_HANG_BUG @@ -302,7 +328,9 @@ int ssl3_accept(SSL *s) case SSL3_ST_SW_CERT_A: case SSL3_ST_SW_CERT_B: /* Check if it is anon DH or anon ECDH */ - if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL)) + /* or normal PSK */ + if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL) + && !(s->s3->tmp.new_cipher->algorithms & SSL_kPSK)) { ret=ssl3_send_server_certificate(s); if (ret <= 0) goto end; @@ -336,6 +364,8 @@ int ssl3_accept(SSL *s) /* only send if a DH key exchange, fortezza or * RSA but we have a sign only certificate * + * PSK: may send PSK identity hints + * * For ECC ciphersuites, we send a serverKeyExchange * message only if the cipher suite is either * ECDH-anon or ECDHE. In other cases, the @@ -343,6 +373,11 @@ int ssl3_accept(SSL *s) * public key for key exchange. */ if (s->s3->tmp.use_rsa_tmp + /* PSK: send ServerKeyExchange if PSK identity + * hint if provided */ +#ifndef OPENSSL_NO_PSK + || ((l & SSL_kPSK) && s->ctx->psk_identity_hint) +#endif || (l & SSL_kECDHE) || (l & (SSL_DH|SSL_kFZA)) || ((l & SSL_kRSA) @@ -380,7 +415,10 @@ int ssl3_accept(SSL *s) * (against the specs, but s3_clnt.c accepts this for SSL 3) */ !(s->verify_mode & SSL_VERIFY_FAIL_IF_NO_PEER_CERT)) || /* never request cert in Kerberos ciphersuites */ - (s->s3->tmp.new_cipher->algorithms & SSL_aKRB5)) + (s->s3->tmp.new_cipher->algorithms & SSL_aKRB5) + /* With normal PSK Certificates and + * Certificate Requests are omitted */ + || (s->s3->tmp.new_cipher->algorithms & SSL_kPSK)) { /* no cert request */ skip=1; @@ -1390,6 +1428,14 @@ int ssl3_send_server_key_exchange(SSL *s) } else #endif /* !OPENSSL_NO_ECDH */ +#ifndef OPENSSL_NO_PSK + if (type & SSL_kPSK) + { + /* reserve size for record length and PSK identity hint*/ + n+=2+strlen(s->ctx->psk_identity_hint); + } + else +#endif /* !OPENSSL_NO_PSK */ { al=SSL_AD_HANDSHAKE_FAILURE; SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_UNKNOWN_KEY_EXCHANGE_TYPE); @@ -1401,7 +1447,8 @@ int ssl3_send_server_key_exchange(SSL *s) n+=2+nr[i]; } - if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL)) + if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL) + && !(s->s3->tmp.new_cipher->algorithms & SSL_kPSK)) { if ((pkey=ssl_get_sign_pkey(s,s->s3->tmp.new_cipher)) == NULL) @@ -1457,6 +1504,16 @@ int ssl3_send_server_key_exchange(SSL *s) } #endif +#ifndef OPENSSL_NO_PSK + if (type & SSL_kPSK) + { + /* copy PSK identity hint */ + s2n(strlen(s->ctx->psk_identity_hint), p); + strncpy(p, s->ctx->psk_identity_hint, strlen(s->ctx->psk_identity_hint)); + p+=strlen(s->ctx->psk_identity_hint); + } +#endif + /* not anonymous */ if (pkey != NULL) { @@ -2177,6 +2234,101 @@ int ssl3_get_client_key_exchange(SSL *s) return (ret); } else +#endif +#ifndef OPENSSL_NO_PSK + if (l & SSL_kPSK) + { + unsigned char *t = NULL; + unsigned char psk_or_pre_ms[PSK_MAX_PSK_LEN*2+4]; + unsigned int pre_ms_len = 0, psk_len = 0; + int psk_err = 1; + char tmp_id[PSK_MAX_IDENTITY_LEN+1]; + + al=SSL_AD_HANDSHAKE_FAILURE; + + n2s(p,i); + if (n != i+2) + { + SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE, + SSL_R_LENGTH_MISMATCH); + goto psk_err; + } + if (i > PSK_MAX_IDENTITY_LEN) + { + SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE, + SSL_R_DATA_LENGTH_TOO_LONG); + goto psk_err; + } + if (s->psk_server_callback == NULL) + { + SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE, + SSL_R_PSK_NO_SERVER_CB); + goto psk_err; + } + + /* Create guaranteed NULL-terminated identity + * string for the callback */ + memcpy(tmp_id, p, i); + memset(tmp_id+i, 0, PSK_MAX_IDENTITY_LEN+1-i); + psk_len = s->psk_server_callback(s, tmp_id, + psk_or_pre_ms, sizeof(psk_or_pre_ms)); + OPENSSL_cleanse(tmp_id, PSK_MAX_IDENTITY_LEN+1); + + if (psk_len > PSK_MAX_PSK_LEN) + { + SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE, + ERR_R_INTERNAL_ERROR); + goto psk_err; + } + else if (psk_len == 0) + { + /* PSK related to the given identity not found */ + SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE, + SSL_R_PSK_IDENTITY_NOT_FOUND); + al=SSL_AD_UNKNOWN_PSK_IDENTITY; + goto psk_err; + } + + /* create PSK pre_master_secret */ + pre_ms_len=2+psk_len+2+psk_len; + t = psk_or_pre_ms; + memmove(psk_or_pre_ms+psk_len+4, psk_or_pre_ms, psk_len); + s2n(psk_len, t); + memset(t, 0, psk_len); + t+=psk_len; + s2n(psk_len, t); + + if (s->session->psk_identity != NULL) + OPENSSL_free(s->session->psk_identity); + s->session->psk_identity = BUF_strdup(p); + if (s->session->psk_identity == NULL) + { + SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE, + ERR_R_MALLOC_FAILURE); + goto psk_err; + } + + if (s->session->psk_identity_hint != NULL) + OPENSSL_free(s->session->psk_identity_hint); + s->session->psk_identity_hint = BUF_strdup(s->ctx->psk_identity_hint); + if (s->ctx->psk_identity_hint != NULL && + s->session->psk_identity_hint == NULL) + { + SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE, + ERR_R_MALLOC_FAILURE); + goto psk_err; + } + + s->session->master_key_length= + s->method->ssl3_enc->generate_master_secret(s, + s->session->master_key, psk_or_pre_ms, pre_ms_len); + psk_err = 0; + psk_err: + OPENSSL_cleanse(psk_or_pre_ms, sizeof(psk_or_pre_ms)); + if (psk_err != 0) + goto f_err; + } + else #endif { al=SSL_AD_HANDSHAKE_FAILURE; diff --git a/ssl/ssl.h b/ssl/ssl.h index e4534f3062..33792ea8fe 100644 --- a/ssl/ssl.h +++ b/ssl/ssl.h @@ -166,6 +166,32 @@ * ECC cipher suite support in OpenSSL originally developed by * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. */ +/* ==================================================================== + * Copyright 2005 Nokia. All rights reserved. + * + * The portions of the attached software ("Contribution") is developed by + * Nokia Corporation and is licensed pursuant to the OpenSSL open source + * license. + * + * The Contribution, originally written by Mika Kousa and Pasi Eronen of + * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites + * support (see RFC 4279) to OpenSSL. + * + * No patent licenses or other rights except those expressly stated in + * the OpenSSL open source license shall be deemed granted or received + * expressly, by implication, estoppel, or otherwise. + * + * No assurances are provided by Nokia that the Contribution does not + * infringe the patent or other intellectual property rights of any third + * party or that the license provides you with all the necessary rights + * to make use of the Contribution. + * + * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN + * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA + * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY + * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR + * OTHERWISE. + */ #ifndef HEADER_SSL_H #define HEADER_SSL_H @@ -294,6 +320,9 @@ extern "C" { #define SSL_TXT_TLSV1 "TLSv1" #define SSL_TXT_ALL "ALL" #define SSL_TXT_ECC "ECCdraft" /* ECC ciphersuites are not yet official */ +#define SSL_TXT_PSK "PSK" +#define SSL_TXT_kPSK "kPSK" +#define SSL_TXT_aPSK "aPSK" /* * COMPLEMENTOF* definitions. These identifiers are used to (de-select) @@ -410,8 +439,9 @@ typedef struct ssl_method_st * Timeout [ 2 ] EXPLICIT INTEGER, -- optional Timeout ins seconds * Peer [ 3 ] EXPLICIT X509, -- optional Peer Certificate * Session_ID_context [ 4 ] EXPLICIT OCTET_STRING, -- the Session ID context - * Verify_result [ 5 ] EXPLICIT INTEGER -- X509_V_... code for `Peer' - * Compression [6] IMPLICIT ASN1_OBJECT -- compression OID XXXXX + * Verify_result [ 5 ] EXPLICIT INTEGER, -- X509_V_... code for `Peer' + * PSK_identity_hint [ 6 ] EXPLICIT OCTET_STRING, -- PSK identity hint + * PSK_identity [ 7 ] EXPLICIT OCTET_STRING -- PSK identity * } * Look in ssl/ssl_asn1.c for more details * I'm using EXPLICIT tags so I can read the damn things using asn1parse :-). @@ -439,7 +469,10 @@ typedef struct ssl_session_st unsigned int krb5_client_princ_len; unsigned char krb5_client_princ[SSL_MAX_KRB5_PRINCIPAL_LENGTH]; #endif /* OPENSSL_NO_KRB5 */ - +#ifndef OPENSSL_NO_PSK + char *psk_identity_hint; + char *psk_identity; +#endif int not_resumable; /* The cert is the certificate used to establish this connection */ @@ -763,6 +796,14 @@ struct ssl_ctx_st /* TLS extensions servername callback */ int (*tlsext_servername_callback)(SSL*, int *, void *); void *tlsext_servername_arg; +#endif +#ifndef OPENSSL_NO_PSK + char *psk_identity_hint; + unsigned int (*psk_client_callback)(SSL *ssl, const char *hint, char *identity, + unsigned int max_identity_len, unsigned char *psk, + unsigned int max_psk_len); + unsigned int (*psk_server_callback)(SSL *ssl, const char *identity, + unsigned char *psk, unsigned int max_psk_len); #endif }; @@ -816,6 +857,21 @@ struct ssl_ctx_st #define SSL_CTX_set_cookie_generate_cb(ctx,cb) ((ctx)->app_gen_cookie_cb=(cb)) #define SSL_CTX_set_cookie_verify_cb(ctx,cb) ((ctx)->app_verify_cookie_cb=(cb)) +#ifndef OPENSSL_NO_PSK +/* the maximum length of the buffer given to callbacks containing the + * resulting identity/psk */ +#define PSK_MAX_IDENTITY_LEN 128 +#define PSK_MAX_PSK_LEN 64 +#define SSL_CTX_set_psk_client_callback(ctx,cb) ((ctx)->psk_client_callback=(cb)) +#define SSL_set_psk_client_callback(ssl, cb) ((ssl)->psk_client_callback=(cb)) +#define SSL_CTX_set_psk_server_callback(ctx,cb) ((ctx)->psk_server_callback=(cb)) +#define SSL_set_psk_server_callback(ssl, cb) ((ssl)->psk_server_callback=(cb)) +int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint); +int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint); +const char *SSL_get_psk_identity_hint(const SSL *s); +const char *SSL_get_psk_identity(const SSL *s); +#endif + #define SSL_NOTHING 1 #define SSL_WRITING 2 #define SSL_READING 3 @@ -966,6 +1022,14 @@ struct ssl_st KSSL_CTX *kssl_ctx; /* Kerberos 5 context */ #endif /* OPENSSL_NO_KRB5 */ +#ifndef OPENSSL_NO_PSK + unsigned int (*psk_client_callback)(SSL *ssl, const char *hint, char *identity, + unsigned int max_identity_len, unsigned char *psk, + unsigned int max_psk_len); + unsigned int (*psk_server_callback)(SSL *ssl, const char *identity, + unsigned char *psk, unsigned int max_psk_len); +#endif + SSL_CTX *ctx; /* set this flag to 1 and a sleep(1) is put into all SSL_read() * and SSL_write() calls, good for nbio debuging :-) */ @@ -1149,6 +1213,7 @@ size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count); #define SSL_AD_UNRECOGNIZED_NAME TLS1_AD_UNRECOGNIZED_NAME #define SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE TLS1_AD_BAD_CERTIFICATE_STATUS_RESPONSE #define SSL_AD_BAD_CERTIFICATE_HASH_VALUE TLS1_AD_BAD_CERTIFICATE_HASH_VALUE +#define SSL_AD_UNKNOWN_PSK_IDENTITY TLS1_AD_UNKNOWN_PSK_IDENTITY /* fatal */ #define SSL_ERROR_NONE 0 #define SSL_ERROR_SSL 1 @@ -1718,6 +1783,7 @@ void ERR_load_SSL_strings(void); #define SSL_F_SSL_CTX_USE_PRIVATEKEY 174 #define SSL_F_SSL_CTX_USE_PRIVATEKEY_ASN1 175 #define SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE 176 +#define SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT 272 #define SSL_F_SSL_CTX_USE_RSAPRIVATEKEY 177 #define SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_ASN1 178 #define SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE 179 @@ -1756,6 +1822,7 @@ void ERR_load_SSL_strings(void); #define SSL_F_SSL_USE_PRIVATEKEY 201 #define SSL_F_SSL_USE_PRIVATEKEY_ASN1 202 #define SSL_F_SSL_USE_PRIVATEKEY_FILE 203 +#define SSL_F_SSL_USE_PSK_IDENTITY_HINT 273 #define SSL_F_SSL_USE_RSAPRIVATEKEY 204 #define SSL_F_SSL_USE_RSAPRIVATEKEY_ASN1 205 #define SSL_F_SSL_USE_RSAPRIVATEKEY_FILE 206 @@ -1789,6 +1856,7 @@ void ERR_load_SSL_strings(void); #define SSL_R_BAD_MESSAGE_TYPE 114 #define SSL_R_BAD_PACKET_LENGTH 115 #define SSL_R_BAD_PROTOCOL_VERSION_NUMBER 116 +#define SSL_R_BAD_PSK_IDENTITY_HINT_LENGTH 157 #define SSL_R_BAD_RESPONSE_ARGUMENT 117 #define SSL_R_BAD_RSA_DECRYPT 118 #define SSL_R_BAD_RSA_ENCRYPT 119 @@ -1908,6 +1976,9 @@ void ERR_load_SSL_strings(void); #define SSL_R_PRE_MAC_LENGTH_TOO_LONG 205 #define SSL_R_PROBLEMS_MAPPING_CIPHER_FUNCTIONS 206 #define SSL_R_PROTOCOL_IS_SHUTDOWN 207 +#define SSL_R_PSK_IDENTITY_NOT_FOUND 223 +#define SSL_R_PSK_NO_CLIENT_CB 224 +#define SSL_R_PSK_NO_SERVER_CB 225 #define SSL_R_PUBLIC_KEY_ENCRYPT_ERROR 208 #define SSL_R_PUBLIC_KEY_IS_NOT_RSA 209 #define SSL_R_PUBLIC_KEY_NOT_RSA 210 diff --git a/ssl/ssl_asn1.c b/ssl/ssl_asn1.c index 1ff31d4402..a8193a58da 100644 --- a/ssl/ssl_asn1.c +++ b/ssl/ssl_asn1.c @@ -55,6 +55,32 @@ * copied and put under another distribution licence * [including the GNU Public Licence.] */ +/* ==================================================================== + * Copyright 2005 Nokia. All rights reserved. + * + * The portions of the attached software ("Contribution") is developed by + * Nokia Corporation and is licensed pursuant to the OpenSSL open source + * license. + * + * The Contribution, originally written by Mika Kousa and Pasi Eronen of + * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites + * support (see RFC 4279) to OpenSSL. + * + * No patent licenses or other rights except those expressly stated in + * the OpenSSL open source license shall be deemed granted or received + * expressly, by implication, estoppel, or otherwise. + * + * No assurances are provided by Nokia that the Contribution does not + * infringe the patent or other intellectual property rights of any third + * party or that the license provides you with all the necessary rights + * to make use of the Contribution. + * + * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN + * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA + * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY + * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR + * OTHERWISE. + */ #include #include @@ -81,12 +107,16 @@ typedef struct ssl_session_asn1_st #ifndef OPENSSL_NO_TLSEXT ASN1_OCTET_STRING tlsext_hostname; #endif /* OPENSSL_NO_TLSEXT */ +#ifndef OPENSSL_NO_PSK + ASN1_OCTET_STRING psk_identity_hint; + ASN1_OCTET_STRING psk_identity; +#endif /* OPENSSL_NO_PSK */ } SSL_SESSION_ASN1; int i2d_SSL_SESSION(SSL_SESSION *in, unsigned char **pp) { #define LSIZE2 (sizeof(long)*2) - int v1=0,v2=0,v3=0,v4=0,v5=0,v6=0; + int v1=0,v2=0,v3=0,v4=0,v5=0,v6=0,v7=0,v8=0; unsigned char buf[4],ibuf1[LSIZE2],ibuf2[LSIZE2]; unsigned char ibuf3[LSIZE2],ibuf4[LSIZE2],ibuf5[LSIZE2]; long l; @@ -156,7 +186,7 @@ int i2d_SSL_SESSION(SSL_SESSION *in, unsigned char **pp) a.krb5_princ.data=in->krb5_client_princ; } #endif /* OPENSSL_NO_KRB5 */ - + if (in->time != 0L) { a.time.length=LSIZE2; @@ -189,6 +219,20 @@ int i2d_SSL_SESSION(SSL_SESSION *in, unsigned char **pp) a.tlsext_hostname.data=(unsigned char *)in->tlsext_hostname; } #endif /* OPENSSL_NO_TLSEXT */ +#ifndef OPENSSL_NO_PSK + if (in->psk_identity_hint) + { + a.psk_identity_hint.length=strlen(in->psk_identity_hint); + a.psk_identity_hint.type=V_ASN1_OCTET_STRING; + a.psk_identity_hint.data=in->psk_identity_hint; + } + if (in->psk_identity) + { + a.psk_identity.length=strlen(in->psk_identity); + a.psk_identity.type=V_ASN1_OCTET_STRING; + a.psk_identity.data=in->psk_identity; + } +#endif /* OPENSSL_NO_PSK */ M_ASN1_I2D_len(&(a.version), i2d_ASN1_INTEGER); M_ASN1_I2D_len(&(a.ssl_version), i2d_ASN1_INTEGER); @@ -215,6 +259,13 @@ int i2d_SSL_SESSION(SSL_SESSION *in, unsigned char **pp) if (in->tlsext_hostname) M_ASN1_I2D_len_EXP_opt(&(a.tlsext_hostname), i2d_ASN1_OCTET_STRING,6,v6); #endif /* OPENSSL_NO_TLSEXT */ +#ifndef OPENSSL_NO_PSK + if (in->psk_identity_hint) + M_ASN1_I2D_len_EXP_opt(&(a.psk_identity_hint), i2d_ASN1_OCTET_STRING,6,v7); + if (in->psk_identity) + M_ASN1_I2D_len_EXP_opt(&(a.psk_identity), i2d_ASN1_OCTET_STRING,7,v8); +#endif /* OPENSSL_NO_PSK */ + M_ASN1_I2D_seq_total(); M_ASN1_I2D_put(&(a.version), i2d_ASN1_INTEGER); @@ -242,6 +293,12 @@ int i2d_SSL_SESSION(SSL_SESSION *in, unsigned char **pp) if (in->tlsext_hostname) M_ASN1_I2D_put_EXP_opt(&(a.tlsext_hostname), i2d_ASN1_OCTET_STRING,6,v6); #endif /* OPENSSL_NO_TLSEXT */ +#ifndef OPENSSL_NO_PSK + if (in->psk_identity_hint) + M_ASN1_I2D_put_EXP_opt(&(a.psk_identity_hint), i2d_ASN1_OCTET_STRING,6,v6); + if (in->psk_identity) + M_ASN1_I2D_put_EXP_opt(&(a.psk_identity), i2d_ASN1_OCTET_STRING,7,v7); +#endif /* OPENSSL_NO_PSK */ M_ASN1_I2D_finish(); } @@ -429,5 +486,33 @@ SSL_SESSION *d2i_SSL_SESSION(SSL_SESSION **a, const unsigned char **pp, #endif /* OPENSSL_NO_TLSEXT */ +#ifndef OPENSSL_NO_PSK + os.length=0; + os.data=NULL; + M_ASN1_D2I_get_EXP_opt(osp,d2i_ASN1_OCTET_STRING,6); + if (os.data) + { + ret->psk_identity_hint = BUF_strndup(os.data, os.length); + OPENSSL_free(os.data); + os.data = NULL; + os.length = 0; + } + else + ret->psk_identity_hint=NULL; + + os.length=0; + os.data=NULL; + M_ASN1_D2I_get_EXP_opt(osp,d2i_ASN1_OCTET_STRING,7); + if (os.data) + { + ret->psk_identity = BUF_strndup(os.data, os.length); + OPENSSL_free(os.data); + os.data = NULL; + os.length = 0; + } + else + ret->psk_identity=NULL; +#endif /* OPENSSL_NO_KRB5 */ + M_ASN1_D2I_Finish(a,SSL_SESSION_free,SSL_F_D2I_SSL_SESSION); } diff --git a/ssl/ssl_ciph.c b/ssl/ssl_ciph.c index cdd7a9ae74..5f9ce0d418 100644 --- a/ssl/ssl_ciph.c +++ b/ssl/ssl_ciph.c @@ -60,6 +60,33 @@ * ECC cipher suite support in OpenSSL originally developed by * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. */ +/* ==================================================================== + * Copyright 2005 Nokia. All rights reserved. + * + * The portions of the attached software ("Contribution") is developed by + * Nokia Corporation and is licensed pursuant to the OpenSSL open source + * license. + * + * The Contribution, originally written by Mika Kousa and Pasi Eronen of + * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites + * support (see RFC 4279) to OpenSSL. + * + * No patent licenses or other rights except those expressly stated in + * the OpenSSL open source license shall be deemed granted or received + * expressly, by implication, estoppel, or otherwise. + * + * No assurances are provided by Nokia that the Contribution does not + * infringe the patent or other intellectual property rights of any third + * party or that the license provides you with all the necessary rights + * to make use of the Contribution. + * + * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN + * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA + * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY + * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR + * OTHERWISE. + */ + #include #include #include @@ -120,6 +147,7 @@ static const SSL_CIPHER cipher_aliases[]={ {0,SSL_TXT_kDHd,0,SSL_kDHd, 0,0,0,0,SSL_MKEY_MASK,0}, {0,SSL_TXT_kEDH,0,SSL_kEDH, 0,0,0,0,SSL_MKEY_MASK,0}, {0,SSL_TXT_kFZA,0,SSL_kFZA, 0,0,0,0,SSL_MKEY_MASK,0}, + {0,SSL_TXT_kPSK,0,SSL_kPSK, 0,0,0,0,SSL_MKEY_MASK,0}, {0,SSL_TXT_DH, 0,SSL_DH, 0,0,0,0,SSL_MKEY_MASK,0}, {0,SSL_TXT_ECC, 0,(SSL_kECDH|SSL_kECDHE), 0,0,0,0,SSL_MKEY_MASK,0}, {0,SSL_TXT_EDH, 0,SSL_EDH, 0,0,0,0,SSL_MKEY_MASK|SSL_AUTH_MASK,0}, @@ -127,6 +155,7 @@ static const SSL_CIPHER cipher_aliases[]={ {0,SSL_TXT_aRSA,0,SSL_aRSA, 0,0,0,0,SSL_AUTH_MASK,0}, {0,SSL_TXT_aDSS,0,SSL_aDSS, 0,0,0,0,SSL_AUTH_MASK,0}, {0,SSL_TXT_aFZA,0,SSL_aFZA, 0,0,0,0,SSL_AUTH_MASK,0}, + {0,SSL_TXT_aPSK,0,SSL_aPSK, 0,0,0,0,SSL_AUTH_MASK,0}, {0,SSL_TXT_aNULL,0,SSL_aNULL,0,0,0,0,SSL_AUTH_MASK,0}, {0,SSL_TXT_aDH, 0,SSL_aDH, 0,0,0,0,SSL_AUTH_MASK,0}, {0,SSL_TXT_DSS, 0,SSL_DSS, 0,0,0,0,SSL_AUTH_MASK,0}, @@ -151,6 +180,7 @@ static const SSL_CIPHER cipher_aliases[]={ {0,SSL_TXT_RSA, 0,SSL_RSA, 0,0,0,0,SSL_AUTH_MASK|SSL_MKEY_MASK,0}, {0,SSL_TXT_ADH, 0,SSL_ADH, 0,0,0,0,SSL_AUTH_MASK|SSL_MKEY_MASK,0}, {0,SSL_TXT_FZA, 0,SSL_FZA, 0,0,0,0,SSL_AUTH_MASK|SSL_MKEY_MASK|SSL_ENC_MASK,0}, + {0,SSL_TXT_PSK, 0,SSL_PSK, 0,0,0,0,SSL_AUTH_MASK|SSL_MKEY_MASK,0}, {0,SSL_TXT_SSLV2, 0,SSL_SSLV2, 0,0,0,0,SSL_SSL_MASK,0}, {0,SSL_TXT_SSLV3, 0,SSL_SSLV3, 0,0,0,0,SSL_SSL_MASK,0}, @@ -370,6 +400,9 @@ static unsigned long ssl_cipher_get_disabled(void) #ifdef OPENSSL_NO_ECDH mask |= SSL_kECDH|SSL_kECDHE; #endif +#ifdef OPENSSL_NO_PSK + mask |= SSL_kPSK; +#endif #ifdef SSL_FORBID_ENULL mask |= SSL_eNULL; #endif @@ -986,6 +1019,9 @@ char *SSL_CIPHER_description(SSL_CIPHER *cipher, char *buf, int len) case SSL_kECDHE: kx=is_export?"ECDH(<=163)":"ECDH"; break; + case SSL_kPSK: + kx="PSK"; + break; default: kx="unknown"; } @@ -1012,6 +1048,9 @@ char *SSL_CIPHER_description(SSL_CIPHER *cipher, char *buf, int len) case SSL_aECDSA: au="ECDSA"; break; + case SSL_aPSK: + au="PSK"; + break; default: au="unknown"; break; diff --git a/ssl/ssl_err.c b/ssl/ssl_err.c index dd6657186d..67a1d4ff36 100644 --- a/ssl/ssl_err.c +++ b/ssl/ssl_err.c @@ -195,6 +195,7 @@ static ERR_STRING_DATA SSL_str_functs[]= {ERR_FUNC(SSL_F_SSL_CTX_USE_PRIVATEKEY), "SSL_CTX_use_PrivateKey"}, {ERR_FUNC(SSL_F_SSL_CTX_USE_PRIVATEKEY_ASN1), "SSL_CTX_use_PrivateKey_ASN1"}, {ERR_FUNC(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE), "SSL_CTX_use_PrivateKey_file"}, +{ERR_FUNC(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT), "SSL_CTX_use_psk_identity_hint"}, {ERR_FUNC(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY), "SSL_CTX_use_RSAPrivateKey"}, {ERR_FUNC(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_ASN1), "SSL_CTX_use_RSAPrivateKey_ASN1"}, {ERR_FUNC(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE), "SSL_CTX_use_RSAPrivateKey_file"}, @@ -233,6 +234,7 @@ static ERR_STRING_DATA SSL_str_functs[]= {ERR_FUNC(SSL_F_SSL_USE_PRIVATEKEY), "SSL_use_PrivateKey"}, {ERR_FUNC(SSL_F_SSL_USE_PRIVATEKEY_ASN1), "SSL_use_PrivateKey_ASN1"}, {ERR_FUNC(SSL_F_SSL_USE_PRIVATEKEY_FILE), "SSL_use_PrivateKey_file"}, +{ERR_FUNC(SSL_F_SSL_USE_PSK_IDENTITY_HINT), "SSL_use_psk_identity_hint"}, {ERR_FUNC(SSL_F_SSL_USE_RSAPRIVATEKEY), "SSL_use_RSAPrivateKey"}, {ERR_FUNC(SSL_F_SSL_USE_RSAPRIVATEKEY_ASN1), "SSL_use_RSAPrivateKey_ASN1"}, {ERR_FUNC(SSL_F_SSL_USE_RSAPRIVATEKEY_FILE), "SSL_use_RSAPrivateKey_file"}, @@ -269,6 +271,7 @@ static ERR_STRING_DATA SSL_str_reasons[]= {ERR_REASON(SSL_R_BAD_MESSAGE_TYPE) ,"bad message type"}, {ERR_REASON(SSL_R_BAD_PACKET_LENGTH) ,"bad packet length"}, {ERR_REASON(SSL_R_BAD_PROTOCOL_VERSION_NUMBER),"bad protocol version number"}, +{ERR_REASON(SSL_R_BAD_PSK_IDENTITY_HINT_LENGTH),"bad psk identity hint length"}, {ERR_REASON(SSL_R_BAD_RESPONSE_ARGUMENT) ,"bad response argument"}, {ERR_REASON(SSL_R_BAD_RSA_DECRYPT) ,"bad rsa decrypt"}, {ERR_REASON(SSL_R_BAD_RSA_ENCRYPT) ,"bad rsa encrypt"}, @@ -388,6 +391,9 @@ static ERR_STRING_DATA SSL_str_reasons[]= {ERR_REASON(SSL_R_PRE_MAC_LENGTH_TOO_LONG),"pre mac length too long"}, {ERR_REASON(SSL_R_PROBLEMS_MAPPING_CIPHER_FUNCTIONS),"problems mapping cipher functions"}, {ERR_REASON(SSL_R_PROTOCOL_IS_SHUTDOWN) ,"protocol is shutdown"}, +{ERR_REASON(SSL_R_PSK_IDENTITY_NOT_FOUND),"psk identity not found"}, +{ERR_REASON(SSL_R_PSK_NO_CLIENT_CB) ,"psk no client cb"}, +{ERR_REASON(SSL_R_PSK_NO_SERVER_CB) ,"psk no server cb"}, {ERR_REASON(SSL_R_PUBLIC_KEY_ENCRYPT_ERROR),"public key encrypt error"}, {ERR_REASON(SSL_R_PUBLIC_KEY_IS_NOT_RSA) ,"public key is not rsa"}, {ERR_REASON(SSL_R_PUBLIC_KEY_NOT_RSA) ,"public key not rsa"}, diff --git a/ssl/ssl_lib.c b/ssl/ssl_lib.c index 7eec7f69d0..2c691da0b8 100644 --- a/ssl/ssl_lib.c +++ b/ssl/ssl_lib.c @@ -115,6 +115,32 @@ * ECC cipher suite support in OpenSSL originally developed by * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. */ +/* ==================================================================== + * Copyright 2005 Nokia. All rights reserved. + * + * The portions of the attached software ("Contribution") is developed by + * Nokia Corporation and is licensed pursuant to the OpenSSL open source + * license. + * + * The Contribution, originally written by Mika Kousa and Pasi Eronen of + * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites + * support (see RFC 4279) to OpenSSL. + * + * No patent licenses or other rights except those expressly stated in + * the OpenSSL open source license shall be deemed granted or received + * expressly, by implication, estoppel, or otherwise. + * + * No assurances are provided by Nokia that the Contribution does not + * infringe the patent or other intellectual property rights of any third + * party or that the license provides you with all the necessary rights + * to make use of the Contribution. + * + * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN + * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA + * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY + * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR + * OTHERWISE. + */ #ifdef REF_CHECK # include @@ -326,6 +352,11 @@ SSL *SSL_new(SSL_CTX *ctx) CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); +#ifndef OPENSSL_NO_PSK + s->psk_client_callback=ctx->psk_client_callback; + s->psk_server_callback=ctx->psk_server_callback; +#endif + return(s); err: if (s != NULL) @@ -1271,7 +1302,11 @@ int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p, if ((c->algorithms & SSL_KRB5) && nokrb5) continue; #endif /* OPENSSL_NO_KRB5 */ - +#ifndef OPENSSL_NO_PSK + /* with PSK there must be client callback set */ + if ((c->algorithms & SSL_PSK) && s->psk_client_callback == NULL) + continue; +#endif /* OPENSSL_NO_PSK */ j = put_cb ? put_cb(c,p) : ssl_put_cipher_by_char(s,c,p); p+=j; } @@ -1500,6 +1535,11 @@ SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth) #ifndef OPENSSL_NO_TLSEXT ret->tlsext_servername_callback = 0; ret->tlsext_servername_arg = NULL; +#endif +#ifndef OPENSSL_NO_PSK + ret->psk_identity_hint=NULL; + ret->psk_client_callback=NULL; + ret->psk_server_callback=NULL; #endif return(ret); err: @@ -1571,6 +1611,11 @@ void SSL_CTX_free(SSL_CTX *a) #else a->comp_methods = NULL; #endif + +#ifndef OPENSSL_NO_PSK + if (a->psk_identity_hint) + OPENSSL_free(a->psk_identity_hint); +#endif OPENSSL_free(a); } @@ -1763,6 +1808,12 @@ void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher) emask|=SSL_kECDHE; } #endif + +#ifndef OPENSSL_NO_PSK + mask |= SSL_kPSK | SSL_aPSK; + emask |= SSL_kPSK | SSL_aPSK; +#endif + c->mask=mask; c->export_mask=emask; c->valid=1; @@ -2634,6 +2685,67 @@ void SSL_set_tmp_ecdh_callback(SSL *ssl,EC_KEY *(*ecdh)(SSL *ssl,int is_export, } #endif +#ifndef OPENSSL_NO_PSK +int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint) + { + if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) + { + SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG); + return 0; + } + if (ctx->psk_identity_hint != NULL) + OPENSSL_free(ctx->psk_identity_hint); + if (identity_hint != NULL) + { + ctx->psk_identity_hint = BUF_strdup(identity_hint); + if (ctx->psk_identity_hint == NULL) + return 0; + } + else + ctx->psk_identity_hint = NULL; + return 1; + } + +int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint) + { + if (s == NULL) + return 0; + + if (s->session == NULL) + return 1; /* session not created yet, ignored */ + + if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) + { + SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG); + return 0; + } + if (s->session->psk_identity_hint != NULL) + OPENSSL_free(s->session->psk_identity_hint); + if (identity_hint != NULL) + { + s->session->psk_identity_hint = BUF_strdup(identity_hint); + if (s->session->psk_identity_hint == NULL) + return 0; + } + else + s->session->psk_identity_hint = NULL; + return 1; + } + +const char *SSL_get_psk_identity_hint(const SSL *s) + { + if (s == NULL || s->session == NULL) + return NULL; + return(s->session->psk_identity_hint); + } + +const char *SSL_get_psk_identity(const SSL *s) + { + if (s == NULL || s->session == NULL) + return NULL; + return(s->session->psk_identity); + } +#endif void SSL_CTX_set_msg_callback(SSL_CTX *ctx, void (*cb)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg)) { diff --git a/ssl/ssl_locl.h b/ssl/ssl_locl.h index f8ec859c6f..2beffcb9e0 100644 --- a/ssl/ssl_locl.h +++ b/ssl/ssl_locl.h @@ -1,3 +1,4 @@ + /* ssl/ssl_locl.h */ /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) * All rights reserved. @@ -113,6 +114,32 @@ * ECC cipher suite support in OpenSSL originally developed by * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. */ +/* ==================================================================== + * Copyright 2005 Nokia. All rights reserved. + * + * The portions of the attached software ("Contribution") is developed by + * Nokia Corporation and is licensed pursuant to the OpenSSL open source + * license. + * + * The Contribution, originally written by Mika Kousa and Pasi Eronen of + * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites + * support (see RFC 4279) to OpenSSL. + * + * No patent licenses or other rights except those expressly stated in + * the OpenSSL open source license shall be deemed granted or received + * expressly, by implication, estoppel, or otherwise. + * + * No assurances are provided by Nokia that the Contribution does not + * infringe the patent or other intellectual property rights of any third + * party or that the license provides you with all the necessary rights + * to make use of the Contribution. + * + * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN + * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA + * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY + * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR + * OTHERWISE. + */ #ifndef HEADER_SSL_LOCL_H #define HEADER_SSL_LOCL_H @@ -249,7 +276,7 @@ * that the different entities within are mutually exclusive: * ONLY ONE BIT PER MASK CAN BE SET AT A TIME. */ -#define SSL_MKEY_MASK 0x000000FFL +#define SSL_MKEY_MASK 0x080000FFL #define SSL_kRSA 0x00000001L /* RSA key exchange */ #define SSL_kDHr 0x00000002L /* DH cert RSA CA cert */ #define SSL_kDHd 0x00000004L /* DH cert DSA CA cert */ @@ -259,8 +286,9 @@ #define SSL_kECDH 0x00000040L /* ECDH w/ long-term keys */ #define SSL_kECDHE 0x00000080L /* ephemeral ECDH */ #define SSL_EDH (SSL_kEDH|(SSL_AUTH_MASK^SSL_aNULL)) +#define SSL_kPSK 0x08000000L /* PSK */ -#define SSL_AUTH_MASK 0x00007F00L +#define SSL_AUTH_MASK 0x10007f00L #define SSL_aRSA 0x00000100L /* Authenticate with RSA */ #define SSL_aDSS 0x00000200L /* Authenticate with DSS */ #define SSL_DSS SSL_aDSS @@ -269,6 +297,7 @@ #define SSL_aDH 0x00001000L /* no Authenticate, ADH */ #define SSL_aKRB5 0x00002000L /* Authenticate with KRB5 */ #define SSL_aECDSA 0x00004000L /* Authenticate with ECDSA */ +#define SSL_aPSK 0x10000000L /* PSK */ #define SSL_NULL (SSL_eNULL) #define SSL_ADH (SSL_kEDH|SSL_aNULL) @@ -277,6 +306,7 @@ #define SSL_ECDH (SSL_kECDH|SSL_kECDHE) #define SSL_FZA (SSL_aFZA|SSL_kFZA|SSL_eFZA) #define SSL_KRB5 (SSL_kKRB5|SSL_aKRB5) +#define SSL_PSK (SSL_kPSK|SSL_aPSK) #define SSL_ENC_MASK 0x043F8000L #define SSL_DES 0x00008000L @@ -298,7 +328,7 @@ #define SSL_SSLV3 0x02000000L #define SSL_TLSV1 SSL_SSLV3 /* for now */ -/* we have used 07ffffff - 5 bits left to go. */ +/* we have used 1fffffff - 3 bits left to go. */ /* * Export and cipher strength information. For each cipher we have to decide diff --git a/ssl/ssl_sess.c b/ssl/ssl_sess.c index ffacf94cc7..a4a3a4be45 100644 --- a/ssl/ssl_sess.c +++ b/ssl/ssl_sess.c @@ -108,6 +108,32 @@ * Hudson (tjh@cryptsoft.com). * */ +/* ==================================================================== + * Copyright 2005 Nokia. All rights reserved. + * + * The portions of the attached software ("Contribution") is developed by + * Nokia Corporation and is licensed pursuant to the OpenSSL open source + * license. + * + * The Contribution, originally written by Mika Kousa and Pasi Eronen of + * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites + * support (see RFC 4279) to OpenSSL. + * + * No patent licenses or other rights except those expressly stated in + * the OpenSSL open source license shall be deemed granted or received + * expressly, by implication, estoppel, or otherwise. + * + * No assurances are provided by Nokia that the Contribution does not + * infringe the patent or other intellectual property rights of any third + * party or that the license provides you with all the necessary rights + * to make use of the Contribution. + * + * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN + * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA + * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY + * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR + * OTHERWISE. + */ #include #include @@ -179,6 +205,10 @@ SSL_SESSION *SSL_SESSION_new(void) ss->tlsext_hostname = NULL; #endif CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_SESSION, ss, &ss->ex_data); +#ifndef OPENSSL_NO_PSK + ss->psk_identity_hint=NULL; + ss->psk_identity=NULL; +#endif return(ss); } @@ -614,6 +644,12 @@ void SSL_SESSION_free(SSL_SESSION *ss) if (ss->ciphers != NULL) sk_SSL_CIPHER_free(ss->ciphers); #ifndef OPENSSL_NO_TLSEXT if (ss->tlsext_hostname != NULL) OPENSSL_free(ss->tlsext_hostname); +#endif +#ifndef OPENSSL_NO_PSK + if (ss->psk_identity_hint != NULL) + OPENSSL_free(ss->psk_identity_hint); + if (ss->psk_identity != NULL) + OPENSSL_free(ss->psk_identity); #endif OPENSSL_cleanse(ss,sizeof(*ss)); OPENSSL_free(ss); diff --git a/ssl/ssl_stat.c b/ssl/ssl_stat.c index ccc010b4e2..c20a4757d1 100644 --- a/ssl/ssl_stat.c +++ b/ssl/ssl_stat.c @@ -55,6 +55,32 @@ * copied and put under another distribution licence * [including the GNU Public Licence.] */ +/* ==================================================================== + * Copyright 2005 Nokia. All rights reserved. + * + * The portions of the attached software ("Contribution") is developed by + * Nokia Corporation and is licensed pursuant to the OpenSSL open source + * license. + * + * The Contribution, originally written by Mika Kousa and Pasi Eronen of + * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites + * support (see RFC 4279) to OpenSSL. + * + * No patent licenses or other rights except those expressly stated in + * the OpenSSL open source license shall be deemed granted or received + * expressly, by implication, estoppel, or otherwise. + * + * No assurances are provided by Nokia that the Contribution does not + * infringe the patent or other intellectual property rights of any third + * party or that the license provides you with all the necessary rights + * to make use of the Contribution. + * + * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN + * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA + * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY + * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR + * OTHERWISE. + */ #include #include "ssl_locl.h" @@ -404,6 +430,7 @@ const char *SSL_alert_desc_string(int value) case TLS1_AD_UNRECOGNIZED_NAME: str="UN"; break; case TLS1_AD_BAD_CERTIFICATE_STATUS_RESPONSE: str="BR"; break; case TLS1_AD_BAD_CERTIFICATE_HASH_VALUE: str="BH"; break; + case TLS1_AD_UNKNOWN_PSK_IDENTITY: str="UP"; break; default: str="UK"; break; } return(str); @@ -502,6 +529,9 @@ const char *SSL_alert_desc_string_long(int value) case TLS1_AD_BAD_CERTIFICATE_HASH_VALUE: str="bad certificate hash value"; break; + case TLS1_AD_UNKNOWN_PSK_IDENTITY: + str="unknown PSK identity"; + break; default: str="unknown"; break; } return(str); diff --git a/ssl/ssl_txt.c b/ssl/ssl_txt.c index 4eb0867155..f51e48b233 100644 --- a/ssl/ssl_txt.c +++ b/ssl/ssl_txt.c @@ -55,6 +55,32 @@ * copied and put under another distribution licence * [including the GNU Public Licence.] */ +/* ==================================================================== + * Copyright 2005 Nokia. All rights reserved. + * + * The portions of the attached software ("Contribution") is developed by + * Nokia Corporation and is licensed pursuant to the OpenSSL open source + * license. + * + * The Contribution, originally written by Mika Kousa and Pasi Eronen of + * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites + * support (see RFC 4279) to OpenSSL. + * + * No patent licenses or other rights except those expressly stated in + * the OpenSSL open source license shall be deemed granted or received + * expressly, by implication, estoppel, or otherwise. + * + * No assurances are provided by Nokia that the Contribution does not + * infringe the patent or other intellectual property rights of any third + * party or that the license provides you with all the necessary rights + * to make use of the Contribution. + * + * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN + * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA + * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY + * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR + * OTHERWISE. + */ #include #include @@ -151,6 +177,12 @@ int SSL_SESSION_print(BIO *bp, const SSL_SESSION *x) if (BIO_printf(bp,"%02X",x->krb5_client_princ[i]) <= 0) goto err; } #endif /* OPENSSL_NO_KRB5 */ +#ifndef OPENSSL_NO_PSK + if (BIO_puts(bp,"\n PSK identity: ") <= 0) goto err; + if (BIO_printf(bp, "%s", x->psk_identity ? x->psk_identity : "None") <= 0) goto err; + if (BIO_puts(bp,"\n PSK identity hint: ") <= 0) goto err; + if (BIO_printf(bp, "%s", x->psk_identity_hint ? x->psk_identity_hint : "None") <= 0) goto err; +#endif #ifndef OPENSSL_NO_COMP if (x->compress_meth != 0) { diff --git a/ssl/ssltest.c b/ssl/ssltest.c index dfe18b0f1c..0d611161ab 100644 --- a/ssl/ssltest.c +++ b/ssl/ssltest.c @@ -113,6 +113,32 @@ * ECC cipher suite support in OpenSSL originally developed by * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. */ +/* ==================================================================== + * Copyright 2005 Nokia. All rights reserved. + * + * The portions of the attached software ("Contribution") is developed by + * Nokia Corporation and is licensed pursuant to the OpenSSL open source + * license. + * + * The Contribution, originally written by Mika Kousa and Pasi Eronen of + * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites + * support (see RFC 4279) to OpenSSL. + * + * No patent licenses or other rights except those expressly stated in + * the OpenSSL open source license shall be deemed granted or received + * expressly, by implication, estoppel, or otherwise. + * + * No assurances are provided by Nokia that the Contribution does not + * infringe the patent or other intellectual property rights of any third + * party or that the license provides you with all the necessary rights + * to make use of the Contribution. + * + * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN + * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA + * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY + * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR + * OTHERWISE. + */ #define _BSD_SOURCE 1 /* Or gethostname won't be declared properly on Linux and GNU platforms. */ @@ -207,6 +233,16 @@ static DH *get_dh1024(void); static DH *get_dh1024dsa(void); #endif + +static char *psk_key=NULL; /* by default PSK is not used */ +#ifndef OPENSSL_NO_PSK +static unsigned int psk_client_callback(SSL *ssl, const char *hint, char *identity, + unsigned int max_identity_len, unsigned char *psk, + unsigned int max_psk_len); +static unsigned int psk_server_callback(SSL *ssl, const char *identity, unsigned char *psk, + unsigned int max_psk_len); +#endif + static BIO *bio_err=NULL; static BIO *bio_stdout=NULL; @@ -247,6 +283,9 @@ static void sv_usage(void) #ifndef OPENSSL_NO_ECDH fprintf(stderr," -no_ecdhe - disable ECDHE\n"); #endif +#ifndef OPENSSL_NO_PSK + fprintf(stderr," -psk arg - PSK in hex (without 0x)\n"); +#endif #ifndef OPENSSL_NO_SSL2 fprintf(stderr," -ssl2 - use SSLv2\n"); #endif @@ -417,6 +456,7 @@ int main(int argc, char *argv[]) #endif int no_dhe = 0; int no_ecdhe = 0; + int no_psk = 0; int print_time = 0; clock_t s_time = 0, c_time = 0; int comp = 0; @@ -496,6 +536,20 @@ int main(int argc, char *argv[]) no_dhe=1; else if (strcmp(*argv,"-no_ecdhe") == 0) no_ecdhe=1; + else if (strcmp(*argv,"-psk") == 0) + { + if (--argc < 1) goto bad; + psk_key=*(++argv); +#ifndef OPENSSL_NO_PSK + if (strspn(psk_key, "abcdefABCDEF1234567890") != strlen(psk_key)) + { + BIO_printf(bio_err,"Not a hex number '%s'\n",*argv); + goto bad; + } +#else + no_psk=1; +#endif + } else if (strcmp(*argv,"-ssl2") == 0) ssl2=1; else if (strcmp(*argv,"-tls1") == 0) @@ -833,6 +887,31 @@ bad: SSL_CTX_set_session_id_context(s_ctx, (void *)&session_id_context, sizeof session_id_context); } + /* Use PSK only if PSK key is given */ + if (psk_key != NULL) + { + /* no_psk is used to avoid putting psk command to openssl tool */ + if (no_psk) + { + /* if PSK is not compiled in and psk key is + * given, do nothing and exit successfully */ + ret=0; + goto end; + } +#ifndef OPENSSL_NO_PSK + SSL_CTX_set_psk_client_callback(c_ctx, psk_client_callback); + SSL_CTX_set_psk_server_callback(s_ctx, psk_server_callback); + if (debug) + BIO_printf(bio_err,"setting PSK identity hint to s_ctx\n"); + if (!SSL_CTX_use_psk_identity_hint(s_ctx, "ctx server identity_hint")) + { + BIO_printf(bio_err,"error setting PSK identity hint to s_ctx\n"); + ERR_print_errors(bio_err); + goto end; + } +#endif + } + c_ssl=SSL_new(c_ctx); s_ssl=SSL_new(s_ctx); @@ -2236,6 +2315,69 @@ static DH *get_dh1024dsa() } #endif +#ifndef OPENSSL_NO_PSK +/* convert the PSK key (psk_key) in ascii to binary (psk) */ +static int psk_key2bn(const char *pskkey, unsigned char *psk, + unsigned int max_psk_len) + { + int ret; + BIGNUM *bn = NULL; + + ret = BN_hex2bn(&bn, pskkey); + if (!ret) + { + BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", pskkey); + if (bn) + BN_free(bn); + return 0; + } + if (BN_num_bytes(bn) > (int)max_psk_len) + { + BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n", + max_psk_len, BN_num_bytes(bn)); + BN_free(bn); + return 0; + } + ret = BN_bn2bin(bn, psk); + BN_free(bn); + return ret; + } + +static unsigned int psk_client_callback(SSL *ssl, const char *hint, char *identity, + unsigned int max_identity_len, unsigned char *psk, + unsigned int max_psk_len) + { + int ret; + unsigned int psk_len = 0; + + ret = snprintf(identity, max_identity_len, "Client_identity"); + if (ret < 0) + goto out_err; + if (debug) + fprintf(stderr, "client: created identity '%s' len=%d\n", identity, ret); + ret = psk_key2bn(psk_key, psk, max_psk_len); + if (ret < 0) + goto out_err; + psk_len = ret; +out_err: + return psk_len; + } + +static unsigned int psk_server_callback(SSL *ssl, const char *identity, + unsigned char *psk, unsigned int max_psk_len) + { + unsigned int psk_len=0; + + if (strcmp(identity, "Client_identity") != 0) + { + BIO_printf(bio_err, "server: PSK error: client identity not found\n"); + return 0; + } + psk_len=psk_key2bn(psk_key, psk, max_psk_len); + return psk_len; + } +#endif + static int do_test_cipherlist(void) { int i = 0; diff --git a/ssl/t1_enc.c b/ssl/t1_enc.c index 6b4884ab1f..cf38aa02f2 100644 --- a/ssl/t1_enc.c +++ b/ssl/t1_enc.c @@ -108,6 +108,32 @@ * Hudson (tjh@cryptsoft.com). * */ +/* ==================================================================== + * Copyright 2005 Nokia. All rights reserved. + * + * The portions of the attached software ("Contribution") is developed by + * Nokia Corporation and is licensed pursuant to the OpenSSL open source + * license. + * + * The Contribution, originally written by Mika Kousa and Pasi Eronen of + * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites + * support (see RFC 4279) to OpenSSL. + * + * No patent licenses or other rights except those expressly stated in + * the OpenSSL open source license shall be deemed granted or received + * expressly, by implication, estoppel, or otherwise. + * + * No assurances are provided by Nokia that the Contribution does not + * infringe the patent or other intellectual property rights of any third + * party or that the license provides you with all the necessary rights + * to make use of the Contribution. + * + * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN + * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA + * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY + * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR + * OTHERWISE. + */ #include #include "ssl_locl.h" @@ -828,6 +854,7 @@ int tls1_alert_code(int code) case SSL_AD_UNRECOGNIZED_NAME: return(TLS1_AD_UNRECOGNIZED_NAME); case SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE: return(TLS1_AD_BAD_CERTIFICATE_STATUS_RESPONSE); case SSL_AD_BAD_CERTIFICATE_HASH_VALUE: return(TLS1_AD_BAD_CERTIFICATE_HASH_VALUE); + case SSL_AD_UNKNOWN_PSK_IDENTITY:return(TLS1_AD_UNKNOWN_PSK_IDENTITY); #if 0 /* not appropriate for TLS, not used for DTLS */ case DTLS1_AD_MISSING_HANDSHAKE_MESSAGE: return (DTLS1_AD_MISSING_HANDSHAKE_MESSAGE); diff --git a/ssl/tls1.h b/ssl/tls1.h index 0a9c1ea500..4a33278a74 100644 --- a/ssl/tls1.h +++ b/ssl/tls1.h @@ -121,6 +121,32 @@ * Vipul Gupta and Sumit Gupta of Sun Microsystems Laboratories. * */ +/* ==================================================================== + * Copyright 2005 Nokia. All rights reserved. + * + * The portions of the attached software ("Contribution") is developed by + * Nokia Corporation and is licensed pursuant to the OpenSSL open source + * license. + * + * The Contribution, originally written by Mika Kousa and Pasi Eronen of + * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites + * support (see RFC 4279) to OpenSSL. + * + * No patent licenses or other rights except those expressly stated in + * the OpenSSL open source license shall be deemed granted or received + * expressly, by implication, estoppel, or otherwise. + * + * No assurances are provided by Nokia that the Contribution does not + * infringe the patent or other intellectual property rights of any third + * party or that the license provides you with all the necessary rights + * to make use of the Contribution. + * + * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN + * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA + * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY + * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR + * OTHERWISE. + */ #ifndef HEADER_TLS1_H #define HEADER_TLS1_H @@ -155,6 +181,7 @@ extern "C" { #define TLS1_AD_UNRECOGNIZED_NAME 112 #define TLS1_AD_BAD_CERTIFICATE_STATUS_RESPONSE 113 #define TLS1_AD_BAD_CERTIFICATE_HASH_VALUE 114 +#define TLS1_AD_UNKNOWN_PSK_IDENTITY 115 /* fatal */ /* ExtensionType values from RFC 3546 */ #define TLSEXT_TYPE_server_name 0 @@ -191,6 +218,11 @@ SSL_CTX_ctrl(ctx,SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG,0, (void *)arg) #endif +/* PSK ciphersuites from 4279 */ +#define TLS1_CK_PSK_WITH_RC4_128_SHA 0x0300008A +#define TLS1_CK_PSK_WITH_3DES_EDE_CBC_SHA 0x0300008B +#define TLS1_CK_PSK_WITH_AES_128_CBC_SHA 0x0300008C +#define TLS1_CK_PSK_WITH_AES_256_CBC_SHA 0x0300008D /* Additional TLS ciphersuites from expired Internet Draft * draft-ietf-tls-56-bit-ciphersuites-01.txt @@ -313,6 +345,12 @@ SSL_CTX_ctrl(ctx,SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG,0, (void *)arg) #define TLS1_TXT_ECDH_anon_WITH_AES_128_CBC_SHA "AECDH-AES128-SHA" #define TLS1_TXT_ECDH_anon_WITH_AES_256_CBC_SHA "AECDH-AES256-SHA" +/* PSK ciphersuites from RFC 4279 */ +#define TLS1_TXT_PSK_WITH_RC4_128_SHA "PSK-RC4-SHA" +#define TLS1_TXT_PSK_WITH_3DES_EDE_CBC_SHA "PSK-3DES-EDE-CBC-SHA" +#define TLS1_TXT_PSK_WITH_AES_128_CBC_SHA "PSK-AES128-CBC-SHA" +#define TLS1_TXT_PSK_WITH_AES_256_CBC_SHA "PSK-AES256-CBC-SHA" + #define TLS_CT_RSA_SIGN 1 #define TLS_CT_DSS_SIGN 2 #define TLS_CT_RSA_FIXED_DH 3 diff --git a/test/testssl b/test/testssl index 8ac90ae5ee..f9d7c5d65f 100644 --- a/test/testssl +++ b/test/testssl @@ -142,4 +142,10 @@ else fi fi +echo test tls1 with PSK +$ssltest -tls1 -cipher PSK -psk abc123 $extra || exit 1 + +echo test tls1 with PSK via BIO pair +$ssltest -bio_pair -tls1 -cipher PSK -psk abc123 $extra || exit 1 + exit 0 -- 2.25.1