Index: libsrtp/crypto/include/sha1.h |
=================================================================== |
--- libsrtp/crypto/include/sha1.h (revision 0) |
+++ libsrtp/crypto/include/sha1.h (revision 0) |
@@ -0,0 +1,108 @@ |
+/* |
+ * sha1.h |
+ * |
+ * interface to the Secure Hash Algorithm v.1 (SHA-1), specified in |
+ * FIPS 180-1 |
+ * |
+ * David A. McGrew |
+ * Cisco Systems, Inc. |
+ */ |
+ |
+/* |
+ * |
+ * Copyright (c) 2001-2006, Cisco Systems, Inc. |
+ * All rights reserved. |
+ * |
+ * Redistribution and use in source and binary forms, with or without |
+ * modification, are permitted provided that the following conditions |
+ * are met: |
+ * |
+ * Redistributions of source code must retain the above copyright |
+ * notice, this list of conditions and the following disclaimer. |
+ * |
+ * 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. |
+ * |
+ * Neither the name of the Cisco Systems, Inc. nor the names of its |
+ * contributors may be used to endorse or promote products derived |
+ * from this software without specific prior written permission. |
+ * |
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
+ * "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 |
+ * COPYRIGHT HOLDERS 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. |
+ * |
+ */ |
+ |
+#ifndef SHA1_H |
+#define SHA1_H |
+ |
+#include "err.h" |
+#include "datatypes.h" |
+ |
+typedef struct { |
+ uint32_t H[5]; /* state vector */ |
+ uint32_t M[16]; /* message buffer */ |
+ int octets_in_buffer; /* octets of message in buffer */ |
+ uint32_t num_bits_in_msg; /* total number of bits in message */ |
+} sha1_ctx_t; |
+ |
+/* |
+ * sha1(&ctx, msg, len, output) hashes the len octets starting at msg |
+ * into the SHA1 context, then writes the result to the 20 octets at |
+ * output |
+ * |
+ */ |
+ |
+void |
+sha1(const uint8_t *message, int octets_in_msg, uint32_t output[5]); |
+ |
+/* |
+ * sha1_init(&ctx) initializes the SHA1 context ctx |
+ * |
+ * sha1_update(&ctx, msg, len) hashes the len octets starting at msg |
+ * into the SHA1 context |
+ * |
+ * sha1_final(&ctx, output) performs the final processing of the SHA1 |
+ * context and writes the result to the 20 octets at output |
+ * |
+ */ |
+ |
+void |
+sha1_init(sha1_ctx_t *ctx); |
+ |
+void |
+sha1_update(sha1_ctx_t *ctx, const uint8_t *M, int octets_in_msg); |
+ |
+void |
+sha1_final(sha1_ctx_t *ctx, uint32_t output[5]); |
+ |
+/* |
+ * The sha1_core function is INTERNAL to SHA-1, but it is declared |
+ * here because it is also used by the cipher SEAL 3.0 in its key |
+ * setup algorithm. |
+ */ |
+ |
+/* |
+ * sha1_core(M, H) computes the core sha1 compression function, where M is |
+ * the next part of the message and H is the intermediate state {H0, |
+ * H1, ...} |
+ * |
+ * this function does not do any of the padding required in the |
+ * complete sha1 function |
+ */ |
+ |
+void |
+sha1_core(const uint32_t M[16], uint32_t hash_value[5]); |
+ |
+#endif /* SHA1_H */ |
Property changes on: libsrtp/crypto/include/sha1.h |
___________________________________________________________________ |
Added: svn:eol-style |
+ LF |