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git.proxmox.com Git - ovs.git/blob - lib/sha1.h
2 * This file is from the Apache Portable Runtime Library.
3 * The full upstream copyright and license statement is included below.
4 * Modifications copyright (c) 2009 Nicira, Inc.
7 /* Licensed to the Apache Software Foundation (ASF) under one or more
8 * contributor license agreements. See the NOTICE file distributed with
9 * this work for additional information regarding copyright ownership.
10 * The ASF licenses this file to You under the Apache License, Version 2.0
11 * (the "License"); you may not use this file except in compliance with
12 * the License. You may obtain a copy of the License at
14 * http://www.apache.org/licenses/LICENSE-2.0
16 * Unless required by applicable law or agreed to in writing, software
17 * distributed under the License is distributed on an "AS IS" BASIS,
18 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
19 * See the License for the specific language governing permissions and
20 * limitations under the License.
22 /* NIST Secure Hash Algorithm
23 * heavily modified by Uwe Hollerbach uh@alumni.caltech edu
24 * from Peter C. Gutmann's implementation as found in
25 * Applied Cryptography by Bruce Schneier
26 * This code is hereby placed in the public domain
36 #define SHA1_DIGEST_SIZE 20 /* Size of the SHA1 digest. */
37 #define SHA1_HEX_DIGEST_LEN 40 /* Length of SHA1 digest as hex in ASCII. */
39 /* SHA1 context structure. */
41 uint32_t digest
[5]; /* Message digest. */
42 uint32_t count_lo
, count_hi
; /* 64-bit bit counts. */
43 uint32_t data
[16]; /* SHA data buffer */
44 int local
; /* Unprocessed amount in data. */
47 void sha1_init(struct sha1_ctx
*);
48 void sha1_update(struct sha1_ctx
*, const void *, size_t);
49 void sha1_final(struct sha1_ctx
*, uint8_t digest
[SHA1_DIGEST_SIZE
]);
50 void sha1_bytes(const void *, size_t, uint8_t digest
[SHA1_DIGEST_SIZE
]);
53 "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x" \
54 "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x"
55 #define SHA1_ARGS(DIGEST) \
56 ((DIGEST)[0]), ((DIGEST)[1]), ((DIGEST)[2]), ((DIGEST)[3]), \
57 ((DIGEST)[4]), ((DIGEST)[5]), ((DIGEST)[6]), ((DIGEST)[7]), \
58 ((DIGEST)[8]), ((DIGEST)[9]), ((DIGEST)[10]), ((DIGEST)[11]), \
59 ((DIGEST)[12]), ((DIGEST)[13]), ((DIGEST)[14]), ((DIGEST)[15]), \
60 ((DIGEST)[16]), ((DIGEST)[17]), ((DIGEST)[18]), ((DIGEST)[19])
62 void sha1_to_hex(const uint8_t digest
[SHA1_DIGEST_SIZE
],
63 char hex
[SHA1_HEX_DIGEST_LEN
+ 1]);
64 bool sha1_from_hex(uint8_t digest
[SHA1_DIGEST_SIZE
], const char *hex
);