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annotate nss/lib/freebl/poly1305/poly1305.h @ 4:b513267f632f tip
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| author | Andre Heinecke <andre.heinecke@intevation.de> |
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| date | Tue, 05 Aug 2014 18:58:03 +0200 |
| parents | 1e5118fa0cb1 |
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| rev | line source |
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1 /* |
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2 * poly1305.h - header file for Poly1305 implementation. |
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3 * |
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4 * This Source Code Form is subject to the terms of the Mozilla Public |
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5 * License, v. 2.0. If a copy of the MPL was not distributed with this |
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6 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
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7 |
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8 #ifndef FREEBL_POLY1305_H_ |
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9 #define FREEBL_POLY1305_H_ |
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10 |
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11 typedef unsigned char poly1305_state[512]; |
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12 |
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13 /* Poly1305Init sets up |state| so that it can be used to calculate an |
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14 * authentication tag with the one-time key |key|. Note that |key| is a |
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15 * one-time key and therefore there is no `reset' method because that would |
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16 * enable several messages to be authenticated with the same key. */ |
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17 extern void Poly1305Init(poly1305_state* state, |
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18 const unsigned char key[32]); |
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19 |
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20 /* Poly1305Update processes |in_len| bytes from |in|. It can be called zero or |
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21 * more times after poly1305_init. */ |
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22 extern void Poly1305Update(poly1305_state* state, |
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23 const unsigned char *in, |
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24 size_t inLen); |
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25 |
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26 /* Poly1305Finish completes the poly1305 calculation and writes a 16 byte |
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27 * authentication tag to |mac|. */ |
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28 extern void Poly1305Finish(poly1305_state* state, |
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29 unsigned char mac[16]); |
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30 |
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31 #endif /* FREEBL_POLY1305_H_ */ |