* Implement custom HMAC_SHA1 and thus eliminate all direct dependency on

  openssl/GnuTLS/any other cryptographic library

1 files changed, 37 insertions, 0 deletions

diff --git a/inc/crypt.h b/inc/crypt.h
new file mode 100644
index 0000000..5ae3f68
--- /dev/null
+++ b/inc/crypt.h
@@ -0,0 +1,37 @@
+/** **************************************************************************
+ * crypt.h
+ * 
+ * Copyright 2008 Bryan Ischo <bryan@ischo.com>
+ * 
+ * This file is part of libs3.
+ * 
+ * libs3 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, version 3 of the License.
+ *
+ * In addition, as a special exception, the copyright holders give
+ * permission to link the code of this library and its programs with the
+ * OpenSSL library, and distribute linked combinations including the two.
+ *
+ * libs3 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 should have received a copy of the GNU General Public License version 3
+ * along with libs3, in a file named COPYING.  If not, see
+ * <http://www.gnu.org/licenses/>.
+ *
+ ************************************************************************** **/
+
+#ifndef CRYPT_H
+#define CRYPT_H
+
+// Private implementation of cryptography functions needed by libs3
+
+// Compute the HMAC-SHA-1 of the given message using the given key, results
+// placed in hmac
+void HMAC_SHA1(unsigned char hmac[20], const unsigned char *key, int key_len,
+               const unsigned char *message, int message_len);
+
+#endif // CRYPT_H