netwerk/srtp/src/crypto/include/sha1.h@6474c204b198 (annotated)
netwerk/srtp/src/crypto/include/sha1.h
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* |
| michael@0 | 2 | * sha1.h |
| michael@0 | 3 | * |
| michael@0 | 4 | * interface to the Secure Hash Algorithm v.1 (SHA-1), specified in |
| michael@0 | 5 | * FIPS 180-1 |
| michael@0 | 6 | * |
| michael@0 | 7 | * David A. McGrew |
| michael@0 | 8 | * Cisco Systems, Inc. |
| michael@0 | 9 | */ |
| michael@0 | 10 | |
| michael@0 | 11 | /* |
| michael@0 | 12 | * |
| michael@0 | 13 | * Copyright (c) 2001-2006, Cisco Systems, Inc. |
| michael@0 | 14 | * All rights reserved. |
| michael@0 | 15 | * |
| michael@0 | 16 | * Redistribution and use in source and binary forms, with or without |
| michael@0 | 17 | * modification, are permitted provided that the following conditions |
| michael@0 | 18 | * are met: |
| michael@0 | 19 | * |
| michael@0 | 20 | * Redistributions of source code must retain the above copyright |
| michael@0 | 21 | * notice, this list of conditions and the following disclaimer. |
| michael@0 | 22 | * |
| michael@0 | 23 | * Redistributions in binary form must reproduce the above |
| michael@0 | 24 | * copyright notice, this list of conditions and the following |
| michael@0 | 25 | * disclaimer in the documentation and/or other materials provided |
| michael@0 | 26 | * with the distribution. |
| michael@0 | 27 | * |
| michael@0 | 28 | * Neither the name of the Cisco Systems, Inc. nor the names of its |
| michael@0 | 29 | * contributors may be used to endorse or promote products derived |
| michael@0 | 30 | * from this software without specific prior written permission. |
| michael@0 | 31 | * |
| michael@0 | 32 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| michael@0 | 33 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| michael@0 | 34 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| michael@0 | 35 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| michael@0 | 36 | * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, |
| michael@0 | 37 | * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| michael@0 | 38 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| michael@0 | 39 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| michael@0 | 40 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| michael@0 | 41 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| michael@0 | 42 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
| michael@0 | 43 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
| michael@0 | 44 | * |
| michael@0 | 45 | */ |
| michael@0 | 46 | |
| michael@0 | 47 | #ifndef SHA1_H |
| michael@0 | 48 | #define SHA1_H |
| michael@0 | 49 | |
| michael@0 | 50 | #include "err.h" |
| michael@0 | 51 | #include "datatypes.h" |
| michael@0 | 52 | |
| michael@0 | 53 | typedef struct { |
| michael@0 | 54 | uint32_t H[5]; /* state vector */ |
| michael@0 | 55 | uint32_t M[16]; /* message buffer */ |
| michael@0 | 56 | int octets_in_buffer; /* octets of message in buffer */ |
| michael@0 | 57 | uint32_t num_bits_in_msg; /* total number of bits in message */ |
| michael@0 | 58 | } sha1_ctx_t; |
| michael@0 | 59 | |
| michael@0 | 60 | /* |
| michael@0 | 61 | * sha1(&ctx, msg, len, output) hashes the len octets starting at msg |
| michael@0 | 62 | * into the SHA1 context, then writes the result to the 20 octets at |
| michael@0 | 63 | * output |
| michael@0 | 64 | * |
| michael@0 | 65 | */ |
| michael@0 | 66 | |
| michael@0 | 67 | void |
| michael@0 | 68 | sha1(const uint8_t *message, int octets_in_msg, uint32_t output[5]); |
| michael@0 | 69 | |
| michael@0 | 70 | /* |
| michael@0 | 71 | * sha1_init(&ctx) initializes the SHA1 context ctx |
| michael@0 | 72 | * |
| michael@0 | 73 | * sha1_update(&ctx, msg, len) hashes the len octets starting at msg |
| michael@0 | 74 | * into the SHA1 context |
| michael@0 | 75 | * |
| michael@0 | 76 | * sha1_final(&ctx, output) performs the final processing of the SHA1 |
| michael@0 | 77 | * context and writes the result to the 20 octets at output |
| michael@0 | 78 | * |
| michael@0 | 79 | */ |
| michael@0 | 80 | |
| michael@0 | 81 | void |
| michael@0 | 82 | sha1_init(sha1_ctx_t *ctx); |
| michael@0 | 83 | |
| michael@0 | 84 | void |
| michael@0 | 85 | sha1_update(sha1_ctx_t *ctx, const uint8_t *M, int octets_in_msg); |
| michael@0 | 86 | |
| michael@0 | 87 | void |
| michael@0 | 88 | sha1_final(sha1_ctx_t *ctx, uint32_t output[5]); |
| michael@0 | 89 | |
| michael@0 | 90 | /* |
| michael@0 | 91 | * The sha1_core function is INTERNAL to SHA-1, but it is declared |
| michael@0 | 92 | * here because it is also used by the cipher SEAL 3.0 in its key |
| michael@0 | 93 | * setup algorithm. |
| michael@0 | 94 | */ |
| michael@0 | 95 | |
| michael@0 | 96 | /* |
| michael@0 | 97 | * sha1_core(M, H) computes the core sha1 compression function, where M is |
| michael@0 | 98 | * the next part of the message and H is the intermediate state {H0, |
| michael@0 | 99 | * H1, ...} |
| michael@0 | 100 | * |
| michael@0 | 101 | * this function does not do any of the padding required in the |
| michael@0 | 102 | * complete sha1 function |
| michael@0 | 103 | */ |
| michael@0 | 104 | |
| michael@0 | 105 | void |
| michael@0 | 106 | sha1_core(const uint32_t M[16], uint32_t hash_value[5]); |
| michael@0 | 107 | |
| michael@0 | 108 | #endif /* SHA1_H */ |
