--- /dev/null
+/* demos/sign/sign.c */
+/* Copyright (C) 1995-1998 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 :-) */
+
+/* reformated a bit and converted to use the more common functions: this was
+ * initially written at the dawn of time :-) - Steve.
+ */
+
+#include <stdio.h>
+#include <openssl/rsa.h>
+#include <openssl/evp.h>
+#include <openssl/objects.h>
+#include <openssl/x509.h>
+#include <openssl/err.h>
+#include <openssl/pem.h>
+#include <openssl/ssl.h>
+
+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);
+}
projects / cassiopeia.git / blobdiff