diff options
Diffstat (limited to 'examples/c/hash.c')
| -rw-r--r-- | examples/c/hash.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/examples/c/hash.c b/examples/c/hash.c new file mode 100644 index 0000000..76f2fa4 --- /dev/null +++ b/examples/c/hash.c @@ -0,0 +1,51 @@ +/* + * $Id$ + * RubySSL project + * Copyright (C) 2001 Michal Rokos <m.rokos@sh.cvut.cz> + * All rights reserved. + */ +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. (You can find the licence + * in LICENCE.txt file.) + */ +#include <openssl/ssl.h> + +int main(int argc, char *argv[]) +{ + BIO *in = NULL, *out = NULL; + X509 *x509 = NULL; + ASN1_BIT_STRING *key = NULL; + ASN1_OCTET_STRING *digest = NULL; + unsigned char dig[EVP_MAX_MD_SIZE]; + EVP_MD_CTX md; + unsigned int dig_len; + char *txt = NULL; + + in = BIO_new_file("./01cert.pem", "r"); + out = BIO_new(BIO_s_file()); + BIO_set_fp(out, stdout, BIO_NOCLOSE|BIO_FP_TEXT); + + x509 = PEM_read_bio_X509(in, NULL, NULL, NULL); + key = x509->cert_info->key->public_key; + + ASN1_STRING_print(out, key); + BIO_printf(out, "\n===\n"); + + EVP_DigestInit(&md, EVP_sha1()); + EVP_DigestUpdate(&md, key->data, key->length); + EVP_DigestFinal(&md, dig, &dig_len); + + txt = hex_to_string(dig, dig_len); + BIO_printf(out, "%s\n===\n", txt); + return 0; +} +//i2v_ ... as STACK_OF(CONF_VALUE) for easy printing + |