diff options
Diffstat (limited to 'openssl/demos/sign/sign.c')
| -rw-r--r-- | openssl/demos/sign/sign.c | 175 |
1 files changed, 91 insertions, 84 deletions
diff --git a/openssl/demos/sign/sign.c b/openssl/demos/sign/sign.c index a6c66e17c..22f53fb60 100644 --- a/openssl/demos/sign/sign.c +++ b/openssl/demos/sign/sign.c @@ -5,21 +5,21 @@ * 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: @@ -34,10 +34,10 @@ * 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 + * 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 @@ -49,19 +49,22 @@ * 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> */ +/* + * sign-it.cpp - Simple test app using SSLeay envelopes to sign data + * 29.9.1996, Sampo Kellomaki <sampo@iki.fi> + */ /* converted to C - eay :-) */ -/* reformated a bit and converted to use the more common functions: this was +/* + * reformated a bit and converted to use the more common functions: this was * initially written at the dawn of time :-) - Steve. */ @@ -74,80 +77,84 @@ #include <openssl/pem.h> #include <openssl/ssl.h> -int main () +int 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 = PEM_read_PrivateKey(fp, NULL, NULL, NULL); - fclose (fp); - - if (pkey == NULL) { - ERR_print_errors_fp (stderr); - exit (1); - } - - /* Do the signature */ - - EVP_SignInit (&md_ctx, EVP_sha1()); - 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 = PEM_read_X509(fp, NULL, NULL, NULL); - fclose (fp); - - if (x509 == NULL) { - ERR_print_errors_fp (stderr); - exit (1); - } - - /* Get public key - eay */ - pkey=X509_get_pubkey(x509); - if (pkey == NULL) { - ERR_print_errors_fp (stderr); - exit (1); - } - - /* Verify the signature */ - - EVP_VerifyInit (&md_ctx, EVP_sha1()); - EVP_VerifyUpdate (&md_ctx, data, strlen((char*)data)); - err = EVP_VerifyFinal (&md_ctx, sig_buf, sig_len, pkey); - EVP_PKEY_free (pkey); - - if (err != 1) { - ERR_print_errors_fp (stderr); - exit (1); - } - printf ("Signature Verified Ok.\n"); - return(0); + 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 = PEM_read_PrivateKey(fp, NULL, NULL, NULL); + fclose(fp); + + if (pkey == NULL) { + ERR_print_errors_fp(stderr); + exit(1); + } + + /* Do the signature */ + + EVP_SignInit(&md_ctx, EVP_sha1()); + 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 = PEM_read_X509(fp, NULL, NULL, NULL); + fclose(fp); + + if (x509 == NULL) { + ERR_print_errors_fp(stderr); + exit(1); + } + + /* Get public key - eay */ + pkey = X509_get_pubkey(x509); + if (pkey == NULL) { + ERR_print_errors_fp(stderr); + exit(1); + } + + /* Verify the signature */ + + EVP_VerifyInit(&md_ctx, EVP_sha1()); + EVP_VerifyUpdate(&md_ctx, data, strlen((char *)data)); + err = EVP_VerifyFinal(&md_ctx, sig_buf, sig_len, pkey); + EVP_PKEY_free(pkey); + + if (err != 1) { + ERR_print_errors_fp(stderr); + exit(1); + } + printf("Signature Verified Ok.\n"); + return (0); } |