From 30b4c2724ea2a078d921ba16a51b8d3e2ad85c42 Mon Sep 17 00:00:00 2001 From: Richard Levitte Date: Wed, 30 May 2001 15:29:28 +0000 Subject: [PATCH] Extend all the loading functions to take an engine pointer, a pass string (some engines may have certificates protected by a PIN!) and a description to put into error messages. Also, have our own password callback that we can send both a password and some prompt info to. The default password callback in EVP assumes that the passed parameter is a password, which isn't always the right thing, and the ENGINE code (at least the nCipher one) makes other assumptions... Also, in spite of having the functions to load keys, some utilities did the loading all by themselves... That's changed too. --- apps/apps.c | 121 +++++++++++++++++++++++++++++++++++++++++--------- apps/apps.h | 22 +++++++-- apps/ca.c | 28 ++---------- apps/dgst.c | 49 ++++---------------- apps/ocsp.c | 21 ++++++--- apps/req.c | 38 +++------------- apps/rsautl.c | 10 +++-- apps/smime.c | 36 ++++++++------- apps/x509.c | 12 ++--- 9 files changed, 183 insertions(+), 154 deletions(-) diff --git a/apps/apps.c b/apps/apps.c index 4aeabdfa38..659a3ad7fd 100644 --- a/apps/apps.c +++ b/apps/apps.c @@ -369,6 +369,57 @@ int dump_cert_text (BIO *out, X509 *x) return 0; } +int password_callback(char *buf, int bufsiz, int verify, + PW_CB_DATA *cb_data) + { + int i,j; + char prompt[80]; + const char *prompt_info = NULL; + const char *password = NULL; + + if (cb_data) + { + if (cb_data->password) + password = cb_data->password; + if (cb_data->prompt_info) + prompt_info = cb_data->prompt_info; + } + + if(password) { + i=strlen(password); + i=(i > bufsiz)?bufsiz:i; + memcpy(buf,password,i); + return(i); + } + + if (EVP_get_pw_prompt()) + BIO_snprintf(prompt, sizeof(prompt)-1, EVP_get_pw_prompt(), + prompt_info ? prompt_info : ""); + else + BIO_snprintf(prompt, sizeof(prompt)-1, + "Enter pass phrase for %s:", + prompt_info ? prompt_info : ""); + + for (;;) + { + i=EVP_read_pw_string(buf,bufsiz,prompt,verify); + if (i != 0) + { + BIO_printf(bio_err,"aborted!\n"); + memset(buf,0,(unsigned int)bufsiz); + return(-1); + } + j=strlen(buf); + if (j < PW_MIN_LENGTH) + { + BIO_printf(bio_err,"phrase is too short, needs to be at least %d chars\n",PW_MIN_LENGTH); + } + else + break; + } + return(j); + } + static char *app_get_pass(BIO *err, char *arg, int keepbio); int app_passwd(BIO *err, char *arg1, char *arg2, char **pass1, char **pass2) @@ -470,7 +521,8 @@ int add_oid_section(BIO *err, LHASH *conf) return 1; } -X509 *load_cert(BIO *err, char *file, int format) +X509 *load_cert(BIO *err, const char *file, int format, + const char *pass, ENGINE *e, const char *cert_descrip) { ASN1_HEADER *ah=NULL; BUF_MEM *buf=NULL; @@ -492,7 +544,9 @@ X509 *load_cert(BIO *err, char *file, int format) { if (BIO_read_filename(cert,file) <= 0) { - perror(file); + BIO_printf(err, "Error opening %s %s\n", + cert_descrip, file); + ERR_print_errors(err); goto end; } } @@ -543,7 +597,8 @@ X509 *load_cert(BIO *err, char *file, int format) ah->data=NULL; } else if (format == FORMAT_PEM) - x=PEM_read_bio_X509_AUX(cert,NULL,NULL,NULL); + x=PEM_read_bio_X509_AUX(cert,NULL, + (pem_password_cb *)password_callback, NULL); else if (format == FORMAT_PKCS12) { PKCS12 *p12 = d2i_PKCS12_bio(cert, NULL); @@ -553,7 +608,8 @@ X509 *load_cert(BIO *err, char *file, int format) p12 = NULL; } else { - BIO_printf(err,"bad input format specified for input cert\n"); + BIO_printf(err,"bad input format specified for %s\n", + cert_descrip); goto end; } end: @@ -568,10 +624,15 @@ end: return(x); } -EVP_PKEY *load_key(BIO *err, char *file, int format, char *pass, ENGINE *e) +EVP_PKEY *load_key(BIO *err, const char *file, int format, + const char *pass, ENGINE *e, const char *key_descrip) { BIO *key=NULL; EVP_PKEY *pkey=NULL; + PW_CB_DATA cb_data; + + cb_data.password = pass; + cb_data.prompt_info = file; if (file == NULL) { @@ -583,7 +644,8 @@ EVP_PKEY *load_key(BIO *err, char *file, int format, char *pass, ENGINE *e) if (!e) BIO_printf(bio_err,"no engine specified\n"); else - pkey = ENGINE_load_private_key(e, file, pass); + pkey = ENGINE_load_private_key(e, file, + (pem_password_cb *)password_callback, &cb_data); goto end; } key=BIO_new(BIO_s_file()); @@ -594,7 +656,8 @@ EVP_PKEY *load_key(BIO *err, char *file, int format, char *pass, ENGINE *e) } if (BIO_read_filename(key,file) <= 0) { - perror(file); + BIO_printf(err, "Error opening %s %s\n", key_descrip, file); + ERR_print_errors(err); goto end; } if (format == FORMAT_ASN1) @@ -603,7 +666,8 @@ EVP_PKEY *load_key(BIO *err, char *file, int format, char *pass, ENGINE *e) } else if (format == FORMAT_PEM) { - pkey=PEM_read_bio_PrivateKey(key,NULL,NULL,pass); + pkey=PEM_read_bio_PrivateKey(key,NULL, + (pem_password_cb *)password_callback, &cb_data); } else if (format == FORMAT_PKCS12) { @@ -615,20 +679,25 @@ EVP_PKEY *load_key(BIO *err, char *file, int format, char *pass, ENGINE *e) } else { - BIO_printf(err,"bad input format specified for key\n"); + BIO_printf(err,"bad input format specified for key file\n"); goto end; } end: if (key != NULL) BIO_free(key); if (pkey == NULL) - BIO_printf(err,"unable to load Private Key\n"); + BIO_printf(err,"unable to load %s\n", key_descrip); return(pkey); } -EVP_PKEY *load_pubkey(BIO *err, char *file, int format, ENGINE *e) +EVP_PKEY *load_pubkey(BIO *err, const char *file, int format, + const char *pass, ENGINE *e, const char *key_descrip) { BIO *key=NULL; EVP_PKEY *pkey=NULL; + PW_CB_DATA cb_data; + + cb_data.password = pass; + cb_data.prompt_info = file; if (file == NULL) { @@ -640,7 +709,8 @@ EVP_PKEY *load_pubkey(BIO *err, char *file, int format, ENGINE *e) if (!e) BIO_printf(bio_err,"no engine specified\n"); else - pkey = ENGINE_load_public_key(e, file, NULL); + pkey = ENGINE_load_public_key(e, file, + (pem_password_cb *)password_callback, &cb_data); goto end; } key=BIO_new(BIO_s_file()); @@ -651,7 +721,8 @@ EVP_PKEY *load_pubkey(BIO *err, char *file, int format, ENGINE *e) } if (BIO_read_filename(key,file) <= 0) { - perror(file); + BIO_printf(err, "Error opening %s %s\n", key_descrip, file); + ERR_print_errors(err); goto end; } if (format == FORMAT_ASN1) @@ -660,27 +731,33 @@ EVP_PKEY *load_pubkey(BIO *err, char *file, int format, ENGINE *e) } else if (format == FORMAT_PEM) { - pkey=PEM_read_bio_PUBKEY(key,NULL,NULL,NULL); + pkey=PEM_read_bio_PUBKEY(key,NULL, + (pem_password_cb *)password_callback, &cb_data); } else { - BIO_printf(err,"bad input format specified for key\n"); + BIO_printf(err,"bad input format specified for key file\n"); goto end; } end: if (key != NULL) BIO_free(key); if (pkey == NULL) - BIO_printf(err,"unable to load Public Key\n"); + BIO_printf(err,"unable to load %s\n", key_descrip); return(pkey); } -STACK_OF(X509) *load_certs(BIO *err, char *file, int format) +STACK_OF(X509) *load_certs(BIO *err, const char *file, int format, + const char *pass, ENGINE *e, const char *cert_descrip) { BIO *certs; int i; STACK_OF(X509) *othercerts = NULL; STACK_OF(X509_INFO) *allcerts = NULL; X509_INFO *xi; + PW_CB_DATA cb_data; + + cb_data.password = pass; + cb_data.prompt_info = file; if((certs = BIO_new(BIO_s_file())) == NULL) { @@ -694,7 +771,9 @@ STACK_OF(X509) *load_certs(BIO *err, char *file, int format) { if (BIO_read_filename(certs,file) <= 0) { - perror(file); + BIO_printf(err, "Error opening %s %s\n", + cert_descrip, file); + ERR_print_errors(err); goto end; } } @@ -708,7 +787,8 @@ STACK_OF(X509) *load_certs(BIO *err, char *file, int format) othercerts = NULL; goto end; } - allcerts = PEM_X509_INFO_read_bio(certs, NULL, NULL, NULL); + allcerts = PEM_X509_INFO_read_bio(certs, NULL, + (pem_password_cb *)password_callback, &cb_data); for(i = 0; i < sk_X509_INFO_num(allcerts); i++) { xi = sk_X509_INFO_value (allcerts, i); @@ -721,7 +801,8 @@ STACK_OF(X509) *load_certs(BIO *err, char *file, int format) goto end; } else { - BIO_printf(err,"bad input format specified for input cert\n"); + BIO_printf(err,"bad input format specified for %s\n", + cert_descrip); goto end; } end: diff --git a/apps/apps.h b/apps/apps.h index 96dafd972d..a2b72f0878 100644 --- a/apps/apps.h +++ b/apps/apps.h @@ -142,6 +142,16 @@ typedef struct args_st int count; } ARGS; +#define PW_MIN_LENGTH 4 +typedef struct pw_cb_data + { + const void *password; + const char *prompt_info; + } PW_CB_DATA; + +int password_callback(char *buf, int bufsiz, int verify, + PW_CB_DATA *cb_data); + int should_retry(int i); int args_from_file(char *file, int *argc, char **argv[]); int str2fmt(char *s); @@ -157,10 +167,14 @@ int set_ext_copy(int *copy_type, const char *arg); int copy_extensions(X509 *x, X509_REQ *req, int copy_type); int app_passwd(BIO *err, char *arg1, char *arg2, char **pass1, char **pass2); int add_oid_section(BIO *err, LHASH *conf); -X509 *load_cert(BIO *err, char *file, int format); -EVP_PKEY *load_key(BIO *err, char *file, int format, char *pass, ENGINE *e); -EVP_PKEY *load_pubkey(BIO *err, char *file, int format, ENGINE *e); -STACK_OF(X509) *load_certs(BIO *err, char *file, int format); +X509 *load_cert(BIO *err, const char *file, int format, + const char *pass, ENGINE *e, const char *cert_descrip); +EVP_PKEY *load_key(BIO *err, const char *file, int format, + const char *pass, ENGINE *e, const char *key_descrip); +EVP_PKEY *load_pubkey(BIO *err, const char *file, int format, + const char *pass, ENGINE *e, const char *key_descrip); +STACK_OF(X509) *load_certs(BIO *err, const char *file, int format, + const char *pass, ENGINE *e, const char *cert_descrip); X509_STORE *setup_verify(BIO *bp, char *CAfile, char *CApath); #define FORMAT_UNDEF 0 diff --git a/apps/ca.c b/apps/ca.c index a4bc7bd6fe..921e1f1840 100644 --- a/apps/ca.c +++ b/apps/ca.c @@ -702,34 +702,12 @@ bad: BIO_printf(bio_err,"Error getting password\n"); goto err; } - if (keyform == FORMAT_ENGINE) - { - if (!e) - { - BIO_printf(bio_err,"no engine specified\n"); - goto err; - } - pkey = ENGINE_load_private_key(e, keyfile, key); - } - else if (keyform == FORMAT_PEM) - { - if (BIO_read_filename(in,keyfile) <= 0) - { - perror(keyfile); - BIO_printf(bio_err,"trying to load CA private key\n"); - goto err; - } - pkey=PEM_read_bio_PrivateKey(in,NULL,NULL,key); - } - else - { - BIO_printf(bio_err,"bad input format specified for key file\n"); - goto err; - } + pkey = load_key(bio_err, keyfile, keyform, key, e, + "CA private key"); if (key) memset(key,0,strlen(key)); if (pkey == NULL) { - BIO_printf(bio_err,"unable to load CA private key\n"); + /* load_key() has already printed an appropriate message */ goto err; } diff --git a/apps/dgst.c b/apps/dgst.c index a6b2e309c4..a010ba0719 100644 --- a/apps/dgst.c +++ b/apps/dgst.c @@ -289,52 +289,19 @@ int MAIN(int argc, char **argv) if(keyfile) { - if (keyform == FORMAT_PEM) - { - BIO *keybio; - keybio = BIO_new_file(keyfile, "r"); - if(!keybio) - { - BIO_printf(bio_err, - "Error opening key file %s\n", - keyfile); - ERR_print_errors(bio_err); - goto end; - } - if(want_pub) - sigkey = PEM_read_bio_PUBKEY(keybio, - NULL, NULL, NULL); - else - sigkey = PEM_read_bio_PrivateKey(keybio, - NULL, NULL, NULL); - BIO_free(keybio); - } - else if (keyform == FORMAT_ENGINE) - { - if (!e) - { - BIO_printf(bio_err,"no engine specified\n"); - goto end; - } - if (want_pub) - sigkey = ENGINE_load_public_key(e, keyfile, NULL); - else - sigkey = ENGINE_load_private_key(e, keyfile, NULL); - } + if (want_pub) + sigkey = load_pubkey(bio_err, keyfile, keyform, NULL, + e, "key file"); else + sigkey = load_key(bio_err, keyfile, keyform, NULL, + e, "key file"); + if (!sigkey) { - BIO_printf(bio_err, - "bad input format specified for key file\n"); + /* load_[pub]key() has already printed an appropriate + message */ goto end; } - - if(!sigkey) { - BIO_printf(bio_err, "Error reading key file %s\n", - keyfile); - ERR_print_errors(bio_err); - goto end; } - } if(sigfile && sigkey) { BIO *sigbio; diff --git a/apps/ocsp.c b/apps/ocsp.c index ba456fc58f..16207a6283 100644 --- a/apps/ocsp.c +++ b/apps/ocsp.c @@ -82,6 +82,7 @@ int MAIN(int, char **); int MAIN(int argc, char **argv) { + ENGINE *e = NULL; char **args; char *host = NULL, *port = NULL, *path = "/"; char *reqin = NULL, *respin = NULL; @@ -326,7 +327,8 @@ int MAIN(int argc, char **argv) { args++; X509_free(issuer); - issuer = load_cert(bio_err, *args, FORMAT_PEM); + issuer = load_cert(bio_err, *args, FORMAT_PEM, + NULL, e, "issuer certificate"); if(!issuer) goto end; } else badarg = 1; @@ -337,7 +339,8 @@ int MAIN(int argc, char **argv) { args++; X509_free(cert); - cert = load_cert(bio_err, *args, FORMAT_PEM); + cert = load_cert(bio_err, *args, FORMAT_PEM, + NULL, e, "certificate"); if(!cert) goto end; if(!add_ocsp_cert(&req, cert, issuer, ids)) goto end; @@ -445,7 +448,8 @@ int MAIN(int argc, char **argv) if (signfile) { if (!keyfile) keyfile = signfile; - signer = load_cert(bio_err, signfile, FORMAT_PEM); + signer = load_cert(bio_err, signfile, FORMAT_PEM, + NULL, e, "signer certificate"); if (!signer) { BIO_printf(bio_err, "Error loading signer certificate\n"); @@ -453,13 +457,17 @@ int MAIN(int argc, char **argv) } if (sign_certfile) { - sign_other = load_certs(bio_err, sign_certfile, FORMAT_PEM); + sign_other = load_certs(bio_err, sign_certfile, FORMAT_PEM, + NULL, e, "signer certificates"); if (!sign_other) goto end; } - key = load_key(bio_err, keyfile, FORMAT_PEM, NULL, NULL); + key = load_key(bio_err, keyfile, FORMAT_PEM, NULL, NULL, + "signer private key"); if (!key) { +#if 0 /* An appropriate message has already been printed */ BIO_printf(bio_err, "Error loading signer private key\n"); +#endif goto end; } if (!OCSP_request_sign(req, signer, key, EVP_sha1(), sign_other, sign_flags)) @@ -565,7 +573,8 @@ int MAIN(int argc, char **argv) if(!store) goto end; if (verify_certfile) { - verify_other = load_certs(bio_err, verify_certfile, FORMAT_PEM); + verify_other = load_certs(bio_err, verify_certfile, FORMAT_PEM, + NULL, e, "validator certificate"); if (!verify_other) goto end; } diff --git a/apps/req.c b/apps/req.c index f422d3e0b7..429eb9d4a0 100644 --- a/apps/req.c +++ b/apps/req.c @@ -606,40 +606,12 @@ bad: if (keyfile != NULL) { - if (keyform == FORMAT_ENGINE) + pkey = load_key(bio_err, keyfile, keyform, NULL, e, + "Private Key"); + if (!pkey) { - if (!e) - { - BIO_printf(bio_err,"no engine specified\n"); - goto end; - } - pkey = ENGINE_load_private_key(e, keyfile, NULL); - } - else - { - if (BIO_read_filename(in,keyfile) <= 0) - { - perror(keyfile); - goto end; - } - - if (keyform == FORMAT_ASN1) - pkey=d2i_PrivateKey_bio(in,NULL); - else if (keyform == FORMAT_PEM) - { - pkey=PEM_read_bio_PrivateKey(in,NULL,NULL, - passin); - } - else - { - BIO_printf(bio_err,"bad input format specified for X509 request\n"); - goto end; - } - } - - if (pkey == NULL) - { - BIO_printf(bio_err,"unable to load Private key\n"); + /* load_key() has already printed an appropriate + message */ goto end; } if (EVP_PKEY_type(pkey->type) == EVP_PKEY_DSA) diff --git a/apps/rsautl.c b/apps/rsautl.c index 662c11a70b..86aa95d38a 100644 --- a/apps/rsautl.c +++ b/apps/rsautl.c @@ -180,15 +180,18 @@ int MAIN(int argc, char **argv) switch(key_type) { case KEY_PRIVKEY: - pkey = load_key(bio_err, keyfile, keyform, NULL, e); + pkey = load_key(bio_err, keyfile, keyform, + NULL, e, "Private Key"); break; case KEY_PUBKEY: - pkey = load_pubkey(bio_err, keyfile, keyform, e); + pkey = load_pubkey(bio_err, keyfile, keyform, + NULL, e, "Public Key"); break; case KEY_CERT: - x = load_cert(bio_err, keyfile, keyform); + x = load_cert(bio_err, keyfile, keyform, + NULL, e, "Certificate"); if(x) { pkey = X509_get_pubkey(x); X509_free(x); @@ -197,7 +200,6 @@ int MAIN(int argc, char **argv) } if(!pkey) { - BIO_printf(bio_err, "Error loading key\n"); return 1; } diff --git a/apps/smime.c b/apps/smime.c index ede9531c55..869933459b 100644 --- a/apps/smime.c +++ b/apps/smime.c @@ -372,8 +372,11 @@ int MAIN(int argc, char **argv) } encerts = sk_X509_new_null(); while (*args) { - if(!(cert = load_cert(bio_err,*args,FORMAT_PEM))) { + if(!(cert = load_cert(bio_err,*args,FORMAT_PEM, + NULL, e, "recipient certificate file"))) { +#if 0 /* An appropriate message is already printed */ BIO_printf(bio_err, "Can't read recipient certificate file %s\n", *args); +#endif goto end; } sk_X509_push(encerts, cert); @@ -383,23 +386,32 @@ int MAIN(int argc, char **argv) } if(signerfile && (operation == SMIME_SIGN)) { - if(!(signer = load_cert(bio_err,signerfile,FORMAT_PEM))) { + if(!(signer = load_cert(bio_err,signerfile,FORMAT_PEM, NULL, + e, "signer certificate"))) { +#if 0 /* An appropri message has already been printed */ BIO_printf(bio_err, "Can't read signer certificate file %s\n", signerfile); +#endif goto end; } } if(certfile) { - if(!(other = load_certs(bio_err,certfile,FORMAT_PEM))) { + if(!(other = load_certs(bio_err,certfile,FORMAT_PEM, NULL, + e, "certificate file"))) { +#if 0 /* An appropriate message has already been printed */ BIO_printf(bio_err, "Can't read certificate file %s\n", certfile); +#endif ERR_print_errors(bio_err); goto end; } } if(recipfile && (operation == SMIME_DECRYPT)) { - if(!(recip = load_cert(bio_err,recipfile,FORMAT_PEM))) { + if(!(recip = load_cert(bio_err,recipfile,FORMAT_PEM,NULL, + e, "recipient certificate file"))) { +#if 0 /* An appropriate message has alrady been printed */ BIO_printf(bio_err, "Can't read recipient certificate file %s\n", recipfile); +#endif ERR_print_errors(bio_err); goto end; } @@ -412,18 +424,10 @@ int MAIN(int argc, char **argv) } else keyfile = NULL; if(keyfile) { - if (keyform == FORMAT_ENGINE) { - if (!e) { - BIO_printf(bio_err,"no engine specified\n"); - goto end; - } - key = ENGINE_load_private_key(e, keyfile, passin); - } else { - if(!(key = load_key(bio_err,keyfile, FORMAT_PEM, passin, NULL))) { - BIO_printf(bio_err, "Can't read recipient certificate file %s\n", keyfile); - ERR_print_errors(bio_err); - goto end; - } + key = load_key(bio_err, keyfile, keyform, passin, e, + "signing key file"); + if (!key) { + goto end; } } diff --git a/apps/x509.c b/apps/x509.c index 391bb3eef9..5be90740c6 100644 --- a/apps/x509.c +++ b/apps/x509.c @@ -619,12 +619,12 @@ bad: EVP_PKEY_free(pkey); } else - x=load_cert(bio_err,infile,informat); + x=load_cert(bio_err,infile,informat,NULL,e,"Certificate"); if (x == NULL) goto end; if (CA_flag) { - xca=load_cert(bio_err,CAfile,CAformat); + xca=load_cert(bio_err,CAfile,CAformat,NULL,e,"CA Certificate"); if (xca == NULL) goto end; } @@ -874,7 +874,8 @@ bad: if (Upkey == NULL) { Upkey=load_key(bio_err, - keyfile,keyformat, passin, e); + keyfile,keyformat, passin, e, + "Private key"); if (Upkey == NULL) goto end; } #ifndef OPENSSL_NO_DSA @@ -893,7 +894,7 @@ bad: { CApkey=load_key(bio_err, CAkeyfile,CAkeyformat, passin, - e); + e, "CA Private Key"); if (CApkey == NULL) goto end; } #ifndef OPENSSL_NO_DSA @@ -920,7 +921,8 @@ bad: else { pk=load_key(bio_err, - keyfile,FORMAT_PEM, passin, e); + keyfile,FORMAT_PEM, passin, e, + "request key"); if (pk == NULL) goto end; } -- 2.25.1