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author | Ralf S. Engelschall <rse@openssl.org> | 1998-12-21 10:52:47 +0000 |
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committer | Ralf S. Engelschall <rse@openssl.org> | 1998-12-21 10:52:47 +0000 |
commit | d02b48c63a58ea4367a0e905979f140b7d090f86 (patch) | |
tree | 504f62ed3d84799f785b9cd9fab255a21b0e1b0e /demos/sign/sign.c | |
download | openssl-d02b48c63a58ea4367a0e905979f140b7d090f86.tar.gz |
Import of old SSLeay release: SSLeay 0.8.1b
Diffstat (limited to 'demos/sign/sign.c')
-rw-r--r-- | demos/sign/sign.c | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/demos/sign/sign.c b/demos/sign/sign.c new file mode 100644 index 0000000000..280cc633ac --- /dev/null +++ b/demos/sign/sign.c @@ -0,0 +1,137 @@ +/* demos/sign/sign.c */ +/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +/* sign-it.cpp - Simple test app using SSLeay envelopes to sign data + 29.9.1996, Sampo Kellomaki <sampo@iki.fi> */ + +/* converted to C - eay :-) */ + +#include <stdio.h> +#include "rsa.h" +#include "evp.h" +#include "objects.h" +#include "x509.h" +#include "err.h" +#include "pem.h" +#include "ssl.h" + +void main () +{ + int err; + int sig_len; + unsigned char sig_buf [4096]; + static char certfile[] = "cert.pem"; + static char keyfile[] = "key.pem"; + static char data[] = "I owe you..."; + EVP_MD_CTX md_ctx; + EVP_PKEY * pkey; + FILE * fp; + X509 * x509; + + /* Just load the crypto library error strings, + * SSL_load_error_strings() loads the crypto AND the SSL ones */ + /* SSL_load_error_strings();*/ + ERR_load_crypto_strings(); + + /* Read private key */ + + fp = fopen (keyfile, "r"); if (fp == NULL) exit (1); + pkey = (EVP_PKEY*)PEM_ASN1_read ((char *(*)())d2i_PrivateKey, + PEM_STRING_EVP_PKEY, + fp, + NULL, NULL); + if (pkey == NULL) { ERR_print_errors_fp (stderr); exit (1); } + fclose (fp); + + /* Do the signature */ + + EVP_SignInit (&md_ctx, EVP_md5()); + EVP_SignUpdate (&md_ctx, data, strlen(data)); + sig_len = sizeof(sig_buf); + err = EVP_SignFinal (&md_ctx, + sig_buf, + &sig_len, + pkey); + if (err != 1) { ERR_print_errors_fp (stderr); exit (1); } + EVP_PKEY_free (pkey); + + /* Read public key */ + + fp = fopen (certfile, "r"); if (fp == NULL) exit (1); + x509 = (X509 *)PEM_ASN1_read ((char *(*)())d2i_X509, + PEM_STRING_X509, + fp, NULL, NULL); + if (x509 == NULL) { ERR_print_errors_fp (stderr); exit (1); } + fclose (fp); + + /* Get public key - eay */ + pkey=X509_extract_key(x509); + if (pkey == NULL) { ERR_print_errors_fp (stderr); exit (1); } + + /* Verify the signature */ + + EVP_VerifyInit (&md_ctx, EVP_md5()); + EVP_VerifyUpdate (&md_ctx, data, strlen((char*)data)); + err = EVP_VerifyFinal (&md_ctx, + sig_buf, + sig_len, + pkey); + if (err != 1) { ERR_print_errors_fp (stderr); exit (1); } + EVP_PKEY_free (pkey); + printf ("Signature Verified Ok.\n"); +} |