From: Rich Salz Date: Thu, 3 Jul 2014 02:44:53 +0000 (-0400) Subject: Merge branch 'rsalz-docfixes' X-Git-Tag: OpenSSL_1_0_1i~55 X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=3fa2fff86fc57df846840042979ebebf81cca424;p=oweals%2Fopenssl.git Merge branch 'rsalz-docfixes' --- diff --git a/doc/apps/asn1parse.pod b/doc/apps/asn1parse.pod index f7bb926211..76a765daf9 100644 --- a/doc/apps/asn1parse.pod +++ b/doc/apps/asn1parse.pod @@ -15,6 +15,8 @@ B B [B<-length number>] [B<-i>] [B<-oid filename>] +[B<-dump>] +[B<-dlimit num>] [B<-strparse offset>] [B<-genstr string>] [B<-genconf file>] @@ -64,6 +66,14 @@ indents the output according to the "depth" of the structures. a file containing additional OBJECT IDENTIFIERs (OIDs). The format of this file is described in the NOTES section below. +=item B<-dump> + +dump unknown data in hex format. + +=item B<-dlimit num> + +like B<-dump>, but only the first B bytes are output. + =item B<-strparse offset> parse the contents octets of the ASN.1 object starting at B. This diff --git a/doc/apps/ca.pod b/doc/apps/ca.pod index 9ff0cc3612..c90e6482e5 100644 --- a/doc/apps/ca.pod +++ b/doc/apps/ca.pod @@ -13,6 +13,8 @@ B B [B<-name section>] [B<-gencrl>] [B<-revoke file>] +[B<-status serial>] +[B<-updatedb>] [B<-crl_reason reason>] [B<-crl_hold instruction>] [B<-crl_compromise time>] @@ -26,6 +28,7 @@ B B [B<-md arg>] [B<-policy arg>] [B<-keyfile arg>] +[B<-keyform PEM|DER>] [B<-key arg>] [B<-passin arg>] [B<-cert file>] @@ -83,7 +86,7 @@ a single self signed certificate to be signed by the CA. a file containing a single Netscape signed public key and challenge and additional field values to be signed by the CA. See the B -section for information on the required format. +section for information on the required input and output format. =item B<-infiles> @@ -94,7 +97,7 @@ are assumed to the the names of files containing certificate requests. the output file to output certificates to. The default is standard output. The certificate details will also be printed out to this -file. +file in PEM format (except that B<-spkac> outputs DER format). =item B<-outdir directory> @@ -110,6 +113,11 @@ the CA certificate file. the private key to sign requests with. +=item B<-keyform PEM|DER> + +the format of the data in the private key file. +The default is PEM. + =item B<-key password> the password used to encrypt the private key. Since on some @@ -267,6 +275,15 @@ the number of hours before the next CRL is due. a filename containing a certificate to revoke. +=item B<-status serial> + +displays the revocation status of the certificate with the specified +serial number and exits. + +=item B<-updatedb> + +Updates the database index to purge expired certificates. + =item B<-crl_reason reason> revocation reason, where B is one of: B, B, @@ -499,6 +516,10 @@ the SPKAC and also the required DN components as name value pairs. If you need to include the same component twice then it can be preceded by a number and a '.'. +When processing SPKAC format, the output is DER if the B<-out> +flag is used, but PEM format if sending to stdout or the B<-outdir> +flag is used. + =head1 EXAMPLES Note: these examples assume that the B directory structure is diff --git a/doc/apps/crl.pod b/doc/apps/crl.pod index 1ad76a5f8c..044a9da915 100644 --- a/doc/apps/crl.pod +++ b/doc/apps/crl.pod @@ -12,6 +12,7 @@ B B [B<-text>] [B<-in filename>] [B<-out filename>] +[B<-nameopt option>] [B<-noout>] [B<-hash>] [B<-issuer>] @@ -53,6 +54,11 @@ default. print out the CRL in text form. +=item B<-nameopt option> + +option which determines how the subject or issuer names are displayed. See +the description of B<-nameopt> in L. + =item B<-noout> don't output the encoded version of the CRL. diff --git a/doc/apps/dhparam.pod b/doc/apps/dhparam.pod index 9edb4ff4e1..6e27cf5c15 100644 --- a/doc/apps/dhparam.pod +++ b/doc/apps/dhparam.pod @@ -12,6 +12,7 @@ B [B<-in> I] [B<-out> I] [B<-dsaparam>] +[B<-check>] [B<-noout>] [B<-text>] [B<-C>] @@ -64,6 +65,10 @@ exchange more efficient. Beware that with such DSA-style DH parameters, a fresh DH key should be created for each use to avoid small-subgroup attacks that may be possible otherwise. +=item B<-check> + +check if the parameters are valid primes and generator. + =item B<-2>, B<-5> The generator to use, either 2 or 5. 2 is the default. If present then the diff --git a/doc/apps/dsa.pod b/doc/apps/dsa.pod index ddbc9327fa..8bf6cc9dca 100644 --- a/doc/apps/dsa.pod +++ b/doc/apps/dsa.pod @@ -13,6 +13,12 @@ B B [B<-passin arg>] [B<-out filename>] [B<-passout arg>] +[B<-aes128>] +[B<-aes192>] +[B<-aes256>] +[B<-camellia128>] +[B<-camellia192>] +[B<-camellia256>] [B<-des>] [B<-des3>] [B<-idea>] @@ -74,10 +80,10 @@ filename. the output file password source. For more information about the format of B see the B section in L. -=item B<-des|-des3|-idea> +=item B<-aes128|-aes192|-aes256|-camellia128|-camellia192|-camellia256|-des|-des3|-idea> -These options encrypt the private key with the DES, triple DES, or the -IDEA ciphers respectively before outputting it. A pass phrase is prompted for. +These options encrypt the private key with the specified +cipher before outputting it. A pass phrase is prompted for. If none of these options is specified the key is written in plain text. This means that using the B utility to read in an encrypted key with no encryption option can be used to remove the pass phrase from a key, or by diff --git a/doc/apps/ecparam.pod b/doc/apps/ecparam.pod index 788c074d7b..88e9d1e83d 100644 --- a/doc/apps/ecparam.pod +++ b/doc/apps/ecparam.pod @@ -16,7 +16,7 @@ B [B<-C>] [B<-check>] [B<-name arg>] -[B<-list_curve>] +[B<-list_curves>] [B<-conv_form arg>] [B<-param_enc arg>] [B<-no_seed>] diff --git a/doc/apps/gendsa.pod b/doc/apps/gendsa.pod index 8c7f114ca0..d9f56be890 100644 --- a/doc/apps/gendsa.pod +++ b/doc/apps/gendsa.pod @@ -8,6 +8,12 @@ gendsa - generate a DSA private key from a set of parameters B B [B<-out filename>] +[B<-aes128>] +[B<-aes192>] +[B<-aes256>] +[B<-camellia128>] +[B<-camellia192>] +[B<-camellia256>] [B<-des>] [B<-des3>] [B<-idea>] @@ -24,10 +30,10 @@ The B command generates a DSA private key from a DSA parameter file =over 4 -=item B<-des|-des3|-idea> +=item B<-aes128|-aes192|-aes256|-camellia128|-camellia192|-camellia256|-des|-des3|-idea> -These options encrypt the private key with the DES, triple DES, or the -IDEA ciphers respectively before outputting it. A pass phrase is prompted for. +These options encrypt the private key with specified +cipher before outputting it. A pass phrase is prompted for. If none of these options is specified no encryption is used. =item B<-rand file(s)> diff --git a/doc/apps/genrsa.pod b/doc/apps/genrsa.pod index 7dcac2a779..cb03d09b95 100644 --- a/doc/apps/genrsa.pod +++ b/doc/apps/genrsa.pod @@ -9,6 +9,18 @@ genrsa - generate an RSA private key B B [B<-out filename>] [B<-passout arg>] +[B<-aes128>] +[B<-aes128>] +[B<-aes192>] +[B<-aes256>] +[B<-camellia128>] +[B<-camellia192>] +[B<-camellia256>] +[B<-aes192>] +[B<-aes256>] +[B<-camellia128>] +[B<-camellia192>] +[B<-camellia256>] [B<-des>] [B<-des3>] [B<-idea>] @@ -36,10 +48,10 @@ used. the output file password source. For more information about the format of B see the B section in L. -=item B<-des|-des3|-idea> +=item B<-aes128|-aes192|-aes256|-camellia128|-camellia192|-camellia256|-des|-des3|-idea> -These options encrypt the private key with the DES, triple DES, or the -IDEA ciphers respectively before outputting it. If none of these options is +These options encrypt the private key with specified +cipher before outputting it. If none of these options is specified no encryption is used. If encryption is used a pass phrase is prompted for if it is not supplied via the B<-passout> argument. diff --git a/doc/apps/rsa.pod b/doc/apps/rsa.pod index d7d784d52b..21cbf8ee00 100644 --- a/doc/apps/rsa.pod +++ b/doc/apps/rsa.pod @@ -15,6 +15,12 @@ B B [B<-out filename>] [B<-passout arg>] [B<-sgckey>] +[B<-aes128>] +[B<-aes192>] +[B<-aes256>] +[B<-camellia128>] +[B<-camellia192>] +[B<-camellia256>] [B<-des>] [B<-des3>] [B<-idea>] @@ -82,10 +88,10 @@ see the B section in L. use the modified NET algorithm used with some versions of Microsoft IIS and SGC keys. -=item B<-des|-des3|-idea> +=item B<-aes128|-aes192|-aes256|-camellia128|-camellia192|-camellia256|-des|-des3|-idea> -These options encrypt the private key with the DES, triple DES, or the -IDEA ciphers respectively before outputting it. A pass phrase is prompted for. +These options encrypt the private key with the specified +cipher before outputting it. A pass phrase is prompted for. If none of these options is specified the key is written in plain text. This means that using the B utility to read in an encrypted key with no encryption option can be used to remove the pass phrase from a key, or by diff --git a/doc/apps/s_client.pod b/doc/apps/s_client.pod index 3215b2e8c9..883da15d25 100644 --- a/doc/apps/s_client.pod +++ b/doc/apps/s_client.pod @@ -9,6 +9,7 @@ s_client - SSL/TLS client program B B [B<-connect host:port>] +[B<-servername name>] [B<-verify depth>] [B<-verify_return_error>] [B<-cert filename>] @@ -28,6 +29,7 @@ B B [B<-nbio>] [B<-crlf>] [B<-ign_eof>] +[B<-no_ign_eof>] [B<-quiet>] [B<-ssl2>] [B<-ssl3>] @@ -37,6 +39,7 @@ B B [B<-no_tls1>] [B<-bugs>] [B<-cipher cipherlist>] +[B<-serverpref>] [B<-starttls protocol>] [B<-engine id>] [B<-tlsextdebug>] @@ -60,6 +63,10 @@ SSL servers. This specifies the host and optional port to connect to. If not specified then an attempt is made to connect to the local host on port 4433. +=item B<-servername name> + +Set the TLS SNI (Server Name Indication) extension in the ClientHello message. + =item B<-cert certname> The certificate to use, if one is requested by the server. The default is @@ -172,6 +179,11 @@ input. inhibit printing of session and certificate information. This implicitly turns on B<-ign_eof> as well. +=item B<-no_ign_eof> + +shut down the connection when end of file is reached in the input. +Can be used to override the implicit B<-ign_eof> after B<-quiet>. + =item B<-psk_identity identity> Use the PSK identity B when using a PSK cipher suite. @@ -205,6 +217,10 @@ the server determines which cipher suite is used it should take the first supported cipher in the list sent by the client. See the B command for more information. +=item B<-serverpref> + +use the server's cipher preferences; only used for SSLV2. + =item B<-starttls protocol> send the protocol-specific message(s) to switch to TLS for communication. diff --git a/doc/apps/s_server.pod b/doc/apps/s_server.pod index f9b9ca5326..b6487b2a80 100644 --- a/doc/apps/s_server.pod +++ b/doc/apps/s_server.pod @@ -35,6 +35,7 @@ B B [B<-CAfile filename>] [B<-nocert>] [B<-cipher cipherlist>] +[B<-serverpref>] [B<-quiet>] [B<-no_tmp_rsa>] [B<-ssl2>] @@ -231,6 +232,10 @@ also included in the server list is used. Because the client specifies the preference order, the order of the server cipherlist irrelevant. See the B command for more information. +=item B<-serverpref> + +use the server's cipher preferences, rather than the client's preferences. + =item B<-tlsextdebug> print out a hex dump of any TLS extensions received from the server. diff --git a/doc/apps/verify.pod b/doc/apps/verify.pod index f35d402950..0c8e4926cc 100644 --- a/doc/apps/verify.pod +++ b/doc/apps/verify.pod @@ -48,7 +48,6 @@ of the B utility). Under Unix the B script will automatically create symbolic links to a directory of certificates. =item B<-CAfile file> - A file of trusted certificates. The file should contain multiple certificates in PEM format concatenated together. diff --git a/doc/apps/x509.pod b/doc/apps/x509.pod index d2d9eb812a..6109389e0b 100644 --- a/doc/apps/x509.pod +++ b/doc/apps/x509.pod @@ -19,6 +19,7 @@ B B [B<-hash>] [B<-subject_hash>] [B<-issuer_hash>] +[B<-ocspid>] [B<-subject>] [B<-issuer>] [B<-nameopt option>] @@ -28,6 +29,7 @@ B B [B<-enddate>] [B<-purpose>] [B<-dates>] +[B<-checkend num>] [B<-modulus>] [B<-pubkey>] [B<-fingerprint>] @@ -42,6 +44,7 @@ B B [B<-days arg>] [B<-set_serial n>] [B<-signkey filename>] +[B<-passin arg>] [B<-x509toreq>] [B<-req>] [B<-CA filename>] @@ -49,6 +52,7 @@ B B [B<-CAcreateserial>] [B<-CAserial filename>] [B<-text>] +[B<-certopt option>] [B<-C>] [B<-md2|-md5|-sha1|-mdc2>] [B<-clrext>] @@ -159,6 +163,10 @@ name. outputs the "hash" of the certificate issuer name. +=item B<-ocspid> + +outputs the OCSP hash values for the subject name and public key. + =item B<-hash> synonym for "-subject_hash" for backward compatibility reasons. @@ -208,6 +216,11 @@ prints out the expiry date of the certificate, that is the notAfter date. prints out the start and expiry dates of a certificate. +=item B<-checkend arg> + +checks if the certificate expires within the next B seconds and exits +non-zero if yes it will expire or zero if not. + =item B<-fingerprint> prints out the digest of the DER encoded version of the whole certificate @@ -313,6 +326,11 @@ If the input is a certificate request then a self signed certificate is created using the supplied private key using the subject name in the request. +=item B<-passin arg> + +the key password source. For more information about the format of B +see the B section in L. + =item B<-clrext> delete any extensions from a certificate. This option is used when a @@ -468,7 +486,7 @@ using the format \UXXXX for 16 bits and \WXXXXXXXX for 32 bits. Also if this option is off any UTF8Strings will be converted to their character form first. -=item B +=item B this option does not attempt to interpret multibyte characters in any way. That is their content octets are merely dumped as though one octet diff --git a/doc/apps/x509v3_config.pod b/doc/apps/x509v3_config.pod index 13ff85b17c..c82cea1da2 100644 --- a/doc/apps/x509v3_config.pod +++ b/doc/apps/x509v3_config.pod @@ -174,7 +174,7 @@ The IP address used in the B options can be in either IPv4 or IPv6 format. The value of B should point to a section containing the distinguished name to use as a set of name value pairs. Multi values AVAs can be formed by -preceeding the name with a B<+> character. +prefacing the name with a B<+> character. otherName can include arbitrary data associated with an OID: the value should be the OID followed by a semicolon and the content in standard diff --git a/doc/crypto/ASN1_generate_nconf.pod b/doc/crypto/ASN1_generate_nconf.pod index 542fd1579a..bfa0a04ff9 100644 --- a/doc/crypto/ASN1_generate_nconf.pod +++ b/doc/crypto/ASN1_generate_nconf.pod @@ -61,7 +61,7 @@ Encode the B type, the B string must not be present. =item B, B Encodes an ASN1 B type. The B string represents -the value of the integer, it can be preceeded by a minus sign and +the value of the integer, it can be prefaced by a minus sign and is normally interpreted as a decimal value unless the prefix B<0x> is included. diff --git a/doc/crypto/BIO_f_base64.pod b/doc/crypto/BIO_f_base64.pod index 438af3b6b6..d1d7bf0bd0 100644 --- a/doc/crypto/BIO_f_base64.pod +++ b/doc/crypto/BIO_f_base64.pod @@ -46,11 +46,11 @@ to standard output: b64 = BIO_new(BIO_f_base64()); bio = BIO_new_fp(stdout, BIO_NOCLOSE); - bio = BIO_push(b64, bio); - BIO_write(bio, message, strlen(message)); - BIO_flush(bio); + BIO_push(b64, bio); + BIO_write(b64, message, strlen(message)); + BIO_flush(b64); - BIO_free_all(bio); + BIO_free_all(b64); Read Base64 encoded data from standard input and write the decoded data to standard output: @@ -62,11 +62,12 @@ data to standard output: b64 = BIO_new(BIO_f_base64()); bio = BIO_new_fp(stdin, BIO_NOCLOSE); bio_out = BIO_new_fp(stdout, BIO_NOCLOSE); - bio = BIO_push(b64, bio); - while((inlen = BIO_read(bio, inbuf, 512)) > 0) + BIO_push(b64, bio); + while((inlen = BIO_read(b64, inbuf, 512)) > 0) BIO_write(bio_out, inbuf, inlen); - BIO_free_all(bio); + BIO_flush(bio_out); + BIO_free_all(b64); =head1 BUGS diff --git a/doc/crypto/RSA_sign.pod b/doc/crypto/RSA_sign.pod index 8553be8e99..fc16b1f4f8 100644 --- a/doc/crypto/RSA_sign.pod +++ b/doc/crypto/RSA_sign.pod @@ -20,6 +20,10 @@ RSA_sign() signs the message digest B of size B using the private key B as specified in PKCS #1 v2.0. It stores the signature in B and the signature size in B. B must point to RSA_size(B) bytes of memory. +Note that PKCS #1 adds meta-data, placing limits on the size of the +key that can be used. +See L for lower-level +operations. B denotes the message digest algorithm that was used to generate B. It usually is one of B, B and B; diff --git a/doc/crypto/err.pod b/doc/crypto/err.pod index 6f729554d2..4a5dc6935c 100644 --- a/doc/crypto/err.pod +++ b/doc/crypto/err.pod @@ -171,7 +171,6 @@ ERR_get_string_table(void) respectively. =head1 SEE ALSO -L, L, L, L, diff --git a/doc/ssl/SSL_CIPHER_get_name.pod b/doc/ssl/SSL_CIPHER_get_name.pod index eb772b55de..2e113be606 100644 --- a/doc/ssl/SSL_CIPHER_get_name.pod +++ b/doc/ssl/SSL_CIPHER_get_name.pod @@ -23,8 +23,12 @@ SSL_CIPHER_get_bits() returns the number of secret bits used for B. If B is not NULL, it contains the number of bits processed by the chosen algorithm. If B is NULL, 0 is returned. -SSL_CIPHER_get_version() returns the protocol version for B, currently -"SSLv2", "SSLv3", or "TLSv1". If B is NULL, "(NONE)" is returned. +SSL_CIPHER_get_version() returns string which indicates the SSL/TLS protocol +version that first defined the cipher. +This is currently B or B. +In some cases it should possibly return "TLSv1.2" but does not; +use SSL_CIPHER_description() instead. +If B is NULL, "(NONE)" is returned. SSL_CIPHER_description() returns a textual description of the cipher used into the buffer B of length B provided. B must be at least @@ -52,7 +56,8 @@ Textual representation of the cipher name. =item -Protocol version: B, B. The TLSv1 ciphers are flagged with SSLv3. +Protocol version: B, B, B. The TLSv1.0 ciphers are +flagged with SSLv3. No new ciphers were added by TLSv1.1. =item Kx= @@ -91,6 +96,10 @@ Some examples for the output of SSL_CIPHER_description(): RC4-MD5 SSLv3 Kx=RSA Au=RSA Enc=RC4(128) Mac=MD5 EXP-RC4-MD5 SSLv3 Kx=RSA(512) Au=RSA Enc=RC4(40) Mac=MD5 export +A comp[lete list can be retrieved by invoking the following command: + + openssl ciphers -v ALL + =head1 BUGS If SSL_CIPHER_description() is called with B being NULL, the diff --git a/doc/ssl/SSL_CTX_add_session.pod b/doc/ssl/SSL_CTX_add_session.pod index 8e0abd36cd..c660a18fc2 100644 --- a/doc/ssl/SSL_CTX_add_session.pod +++ b/doc/ssl/SSL_CTX_add_session.pod @@ -41,7 +41,7 @@ If a server SSL_CTX is configured with the SSL_SESS_CACHE_NO_INTERNAL_STORE flag then the internal cache will not be populated automatically by new sessions negotiated by the SSL/TLS implementation, even though the internal cache will be searched automatically for session-resume requests (the -latter can be surpressed by SSL_SESS_CACHE_NO_INTERNAL_LOOKUP). So the +latter can be suppressed by SSL_SESS_CACHE_NO_INTERNAL_LOOKUP). So the application can use SSL_CTX_add_session() directly to have full control over the sessions that can be resumed if desired. diff --git a/doc/ssl/SSL_CTX_set_client_CA_list.pod b/doc/ssl/SSL_CTX_set_client_CA_list.pod index 5e97392668..4965385e97 100644 --- a/doc/ssl/SSL_CTX_set_client_CA_list.pod +++ b/doc/ssl/SSL_CTX_set_client_CA_list.pod @@ -35,7 +35,7 @@ the chosen B, overriding the setting valid for B's SSL_CTX object. =head1 NOTES When a TLS/SSL server requests a client certificate (see -B), it sends a list of CAs, for which +B), it sends a list of CAs, for which it will accept certificates, to the client. This list must explicitly be set using SSL_CTX_set_client_CA_list() for diff --git a/doc/ssl/SSL_CTX_set_client_cert_cb.pod b/doc/ssl/SSL_CTX_set_client_cert_cb.pod index 3465b5c7bb..d0df69a9bc 100644 --- a/doc/ssl/SSL_CTX_set_client_cert_cb.pod +++ b/doc/ssl/SSL_CTX_set_client_cert_cb.pod @@ -29,7 +29,7 @@ using the B and B arguments and "1" must be returned. The certificate will be installed into B, see the NOTES and BUGS sections. If no certificate should be set, "0" has to be returned and no certificate will be sent. A negative return value will suspend the handshake and the -handshake function will return immediatly. L +handshake function will return immediately. L will return SSL_ERROR_WANT_X509_LOOKUP to indicate, that the handshake was suspended. The next call to the handshake function will again lead to the call of client_cert_cb(). It is the job of the client_cert_cb() to store information diff --git a/doc/ssl/SSL_CTX_set_options.pod b/doc/ssl/SSL_CTX_set_options.pod index d8866927a2..6e6b5e6d80 100644 --- a/doc/ssl/SSL_CTX_set_options.pod +++ b/doc/ssl/SSL_CTX_set_options.pod @@ -256,7 +256,7 @@ Connections and renegotiation are always permitted by OpenSSL implementations. =head2 Unpatched client and patched OpenSSL server -The initial connection suceeds but client renegotiation is denied by the +The initial connection succeeds but client renegotiation is denied by the server with a B warning alert if TLS v1.0 is used or a fatal B alert in SSL v3.0. diff --git a/doc/ssl/SSL_CTX_set_tlsext_ticket_key_cb.pod b/doc/ssl/SSL_CTX_set_tlsext_ticket_key_cb.pod new file mode 100644 index 0000000000..610523407a --- /dev/null +++ b/doc/ssl/SSL_CTX_set_tlsext_ticket_key_cb.pod @@ -0,0 +1,182 @@ +=pod + +=head1 NAME + +SSL_CTX_set_tlsext_ticket_key_cb - set a callback for session ticket processing + +=head1 SYNOPSIS + + #include + + long SSL_CTX_set_tlsext_ticket_key_cb(SSL_CTX sslctx, + int (*cb)(SSL *s, unsigned char key_name[16], + unsigned char iv[EVP_MAX_IV_LENGTH], + EVP_CIPHER_CTX *ctx, HMAC_CTX *hctx, int enc)); + +=head1 DESCRIPTION + +SSL_CTX_set_tlsext_ticket_key_cb() sets a callback fuction I for handling +session tickets for the ssl context I. Session tickets, defined in +RFC5077 provide an enhanced session resumption capability where the server +implementation is not required to maintain per session state. It only applies +to TLS and there is no SSLv3 implementation. + +The callback is available when the OpenSSL library was built without +I being defined. + +The callback function I will be called for every client instigated TLS +session when session ticket extension is presented in the TLS hello +message. It is the responsibility of this function to create or retrieve the +cryptographic parameters and to maintain their state. + +The OpenSSL library uses your callback function to help implement a common TLS +ticket construction state according to RFC5077 Section 4 such that per session +state is unnecessary and a small set of cryptographic variables needs to be +maintained by the callback function implementation. + +In order to reuse a session, a TLS client must send the a session ticket +extension to the server. The client can only send exactly one session ticket. +The server, through the callback function, either agrees to reuse the session +ticket information or it starts a full TLS handshake to create a new session +ticket. + +Before the callback function is started I and I have been +initialised with EVP_CIPHER_CTX_init and HMAC_CTX_init respectively. + +For new sessions tickets, when the client doesn't present a session ticket, or +an attempted retreival of the ticket failed, or a renew option was indicated, +the callback function will be called with I equal to 1. The OpenSSL +library expects that the function will set an arbitary I, initialize +I, and set the cipher context I and the hash context I. + +The I is only 16 characters long. The I is of length +L defined in B. + +The initialization vector I should be a random value. The cipher context +I should use the initialisation vector I. The cipher context can be +set using L. The hmac context can be set using L. + +When the client presents a session ticket, the callback function with be called +with I set to 0 indicating that the I function should retreive a set +of parameters. In this case I and I have already been parsed out of +the session ticket. The OpenSSL library expects that the I will be used +to retrieve a cryptographic parameters and that the cryptographic context +I will be set with the retreived parameters and the initialization vector +I. using a function like L. The I needs to be set +using L. + +If the I is still valid but a renewal of the ticket is required the +callback function should return 2. The library will call the callback again +with an arguement of enc equal to 1 to set the new ticket. + +The return value of the I function is used by OpenSSL to determine what +further processing will occur. The following return values have meaning: + +=over 4 + +=item 2 + +This indicates that the I and I have been set and the session can +continue on those parameters. Additionally it indicates that the session +ticket is in a renewal period and should be replaced. The OpenSSL library will +call I again with an enc argument of 1 to set the new ticket (see RFC5077 +3.3 paragraph 2). + +=item 1 + +This indicates that the I and I have been set and the session can +continue on those parameters. + +=item 0 + +This indicates that it was not possible to set/retrieve a session ticket and +the SSL/TLS session will continue by by negiotationing a set of cryptographic +parameters or using the alternate SSL/TLS resumption mechanism, session ids. + +If called with enc equal to 0 the library will call the I again to get +a new set of parameters. + +=item less than 0 + +This indicates an error. + +=back + +=head1 NOTES + +Session resumption shortcuts the TLS so that the client certificate +negiotation don't occur. It makes up for this by storing client certificate +an all other negotiated state information encrypted within the ticket. In a +resumed session the applications will have all this state information available +exactly as if a full negiotation had occured. + +=head1 EXAMPLES + +Reference Implemention: + SSL_CTX_set_tlsext_ticket_key_cb(SSL,ssl_tlsext_ticket_key_cb); + .... + + static int ssl_tlsext_ticket_key_cb(SSL *s, unsigned char key_name[16], unsigned char *iv, EVP_CIPHER_CTX *ctx, HMAC_CTX *hctx, int enc) + { + if (enc) { /* create new session */ + if (RAND_bytes(iv, EVP_MAX_IV_LENGTH) ) { + return -1; /* insufficient random */ + } + + key = currentkey(); /* something that you need to implement */ + if ( !key ) { + /* current key doesn't exist or isn't valid */ + key = createkey(); /* something that you need to implement. + * createkey needs to initialise, a name, + * an aes_key, a hmac_key and optionally + * an expire time. */ + if ( !key ) { /* key couldn't be created */ + return 0; + } + } + memcpy(key_name, key->name, 16); + + EVP_EncryptInit_ex(&ctx, EVP_aes_128_cbc(), NULL, key->aes_key, iv); + HMAC_Init_ex(&hctx, key->hmac_key, 16, EVP_sha256(), NULL); + + return 1; + + } else { /* retrieve session */ + key = findkey(name); + + if (!key || key->expire < now() ) { + return 0; + } + + HMAC_Init_ex(&hctx, key->hmac_key, 16, EVP_sha256(), NULL); + EVP_DecryptInit_ex(&ctx, EVP_aes_128_cbc(), NULL, key->aes_key, iv ); + + if (key->expire < ( now() - RENEW_TIME ) ) { + /* return 2 - this session will get a new ticket even though the current is still valid */ + return 2; + } + return 1; + + } + } + + + +=head1 RETURN VALUES + +returns 0 to indicate the callback function was set. + +=head1 SEE ALSO + +L, L, +L, +L, +L, +L, +L, + +=head1 HISTORY + +This function was introduced in OpenSSL 0.9.8h + +=cut diff --git a/doc/ssl/SSL_CTX_set_tmp_dh_callback.pod b/doc/ssl/SSL_CTX_set_tmp_dh_callback.pod index 29d1f8a6fb..b34c68aba3 100644 --- a/doc/ssl/SSL_CTX_set_tmp_dh_callback.pod +++ b/doc/ssl/SSL_CTX_set_tmp_dh_callback.pod @@ -12,12 +12,10 @@ SSL_CTX_set_tmp_dh_callback, SSL_CTX_set_tmp_dh, SSL_set_tmp_dh_callback, SSL_se DH *(*tmp_dh_callback)(SSL *ssl, int is_export, int keylength)); long SSL_CTX_set_tmp_dh(SSL_CTX *ctx, DH *dh); - void SSL_set_tmp_dh_callback(SSL_CTX *ctx, + void SSL_set_tmp_dh_callback(SSL *ctx, DH *(*tmp_dh_callback)(SSL *ssl, int is_export, int keylength)); long SSL_set_tmp_dh(SSL *ssl, DH *dh) - DH *(*tmp_dh_callback)(SSL *ssl, int is_export, int keylength)); - =head1 DESCRIPTION SSL_CTX_set_tmp_dh_callback() sets the callback function for B to be @@ -81,7 +79,7 @@ instead (see L), but in this case SSL_OP_SINGLE_DH_USE is mandatory. Application authors may compile in DH parameters. Files dh512.pem, -dh1024.pem, dh2048.pem, and dh4096 in the 'apps' directory of current +dh1024.pem, dh2048.pem, and dh4096.pem in the 'apps' directory of current version of the OpenSSL distribution contain the 'SKIP' DH parameters, which use safe primes and were generated verifiably pseudo-randomly. These files can be converted into C code using the B<-C> option of the diff --git a/doc/ssl/SSL_CTX_set_verify.pod b/doc/ssl/SSL_CTX_set_verify.pod index 6fd6c03215..b6ba6bb51c 100644 --- a/doc/ssl/SSL_CTX_set_verify.pod +++ b/doc/ssl/SSL_CTX_set_verify.pod @@ -109,8 +109,8 @@ certificates would not be present, most likely a X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY will be issued. The depth count is "level 0:peer certificate", "level 1: CA certificate", "level 2: higher level CA certificate", and so on. Setting the maximum -depth to 2 allows the levels 0, 1, and 2. The default depth limit is 9, -allowing for the peer certificate and additional 9 CA certificates. +depth to 2 allows the levels 0, 1, and 2. The default depth limit is 100, +allowing for the peer certificate and additional 100 CA certificates. The B function is used to control the behaviour when the SSL_VERIFY_PEER flag is set. It must be supplied by the application and diff --git a/doc/ssl/SSL_get_version.pod b/doc/ssl/SSL_get_version.pod index cc271db2c5..9ae6f25508 100644 --- a/doc/ssl/SSL_get_version.pod +++ b/doc/ssl/SSL_get_version.pod @@ -12,12 +12,12 @@ SSL_get_version - get the protocol version of a connection. =head1 DESCRIPTION -SSL_get_cipher_version() returns the name of the protocol used for the +SSL_get_version() returns the name of the protocol used for the connection B. =head1 RETURN VALUES -The following strings can occur: +The following strings can be returned: =over 4 @@ -31,7 +31,15 @@ The connection uses the SSLv3 protocol. =item TLSv1 -The connection uses the TLSv1 protocol. +The connection uses the TLSv1.0 protocol. + +=item TLSv1.1 + +The connection uses the TLSv1.1 protocol. + +=item TLSv1.2 + +The connection uses the TLSv1.2 protocol. =item unknown diff --git a/doc/ssl/d2i_SSL_SESSION.pod b/doc/ssl/d2i_SSL_SESSION.pod index 81d276477f..bce06e23b6 100644 --- a/doc/ssl/d2i_SSL_SESSION.pod +++ b/doc/ssl/d2i_SSL_SESSION.pod @@ -48,6 +48,16 @@ known limit on the size of the created ASN1 representation, so the necessary amount of space should be obtained by first calling i2d_SSL_SESSION() with B, and obtain the size needed, then allocate the memory and call i2d_SSL_SESSION() again. +Note that this will advance the value contained in B<*pp> so it is necessary +to save a copy of the original allocation. +For example: + int i,j; + char *p, *temp; + i = i2d_SSL_SESSION(sess, NULL); + p = temp = malloc(i); + j = i2d_SSL_SESSION(sess, &temp); + assert(i == j); + assert(p+i == temp); =head1 RETURN VALUES