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| 1 /* | |
| 2 * Poly1305 | |
| 3 * | |
| 4 * Created on: Jun, 2013 | |
| 5 * Author: Elie Bursztein (elieb@google.com) | |
| 6 * | |
| 7 * Adapted from the estream code by D. Bernstein. | |
| 8 */ | |
| 9 /* ==================================================================== | |
| 10 * Copyright (c) 2011-2013 The OpenSSL Project. All rights reserved. | |
| 11 * | |
| 12 * Redistribution and use in source and binary forms, with or without | |
| 13 * modification, are permitted provided that the following conditions | |
| 14 * are met: | |
| 15 * | |
| 16 * 1. Redistributions of source code must retain the above copyright | |
| 17 * notice, this list of conditions and the following disclaimer. | |
| 18 * | |
| 19 * 2. Redistributions in binary form must reproduce the above copyright | |
| 20 * notice, this list of conditions and the following disclaimer in | |
| 21 * the documentation and/or other materials provided with the | |
| 22 * distribution. | |
| 23 * | |
| 24 * 3. All advertising materials mentioning features or use of this | |
| 25 * software must display the following acknowledgment: | |
| 26 * "This product includes software developed by the OpenSSL Project | |
| 27 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | |
| 28 * | |
| 29 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
| 30 * endorse or promote products derived from this software without | |
| 31 * prior written permission. For written permission, please contact | |
| 32 * licensing@OpenSSL.org. | |
| 33 * | |
| 34 * 5. Products derived from this software may not be called "OpenSSL" | |
| 35 * nor may "OpenSSL" appear in their names without prior written | |
| 36 * permission of the OpenSSL Project. | |
| 37 * | |
| 38 * 6. Redistributions of any form whatsoever must retain the following | |
| 39 * acknowledgment: | |
| 40 * "This product includes software developed by the OpenSSL Project | |
| 41 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | |
| 42 * | |
| 43 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
| 44 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 45 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 46 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
| 47 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 48 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
| 49 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
| 50 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 51 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
| 52 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 53 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
| 54 * OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 55 * ==================================================================== | |
| 56 */ | |
| 57 | |
| 58 #ifndef HEADER_POLY1305_H_ | |
| 59 #define HEADER_POLY1305_H_ | |
| 60 | |
| 61 #include <stdint.h> | |
| 62 #include <openssl/opensslconf.h> | |
| 63 | |
| 64 #if defined(OPENSSL_NO_POLY1305) | |
| 65 #error Poly1305 support is disabled. | |
| 66 #endif | |
| 67 | |
| 68 typedef unsigned char poly1305_state[512]; | |
| 69 | |
| 70 /* poly1305_init sets up |state| so that it can be used to calculate an | |
| 71 * authentication tag with the one-time key |key|. Note that |key| is a | |
| 72 * one-time key and therefore there is no `reset' method because that would | |
| 73 * enable several messages to be authenticated with the same key. */ | |
| 74 extern void CRYPTO_poly1305_init(poly1305_state* state, | |
| 75 const unsigned char key[32]); | |
| 76 | |
| 77 /* poly1305_update processes |in_len| bytes from |in|. It can be called zero or | |
| 78 * more times after poly1305_init. */ | |
| 79 extern void CRYPTO_poly1305_update(poly1305_state* state, | |
| 80 const unsigned char *in, | |
| 81 size_t in_len); | |
| 82 | |
| 83 /* poly1305_finish completes the poly1305 calculation and writes a 16 byte | |
| 84 * authentication tag to |mac|. */ | |
| 85 extern void CRYPTO_poly1305_finish(poly1305_state* state, | |
| 86 unsigned char mac[16]); | |
| 87 | |
| 88 #endif /* HEADER_POLY1305_H_ */ | |
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Chromium Code Reviews
Issue 2072073002:
Delete bundled copy of OpenSSL and replace with README. (Closed)
Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master