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Side by Side Diff: nss/lib/freebl/poly1305.h

Issue 2078763002: Delete bundled copy of NSS and replace with README. (Closed) Base URL: https://chromium.googlesource.com/chromium/deps/nss@master
Patch Set: Delete bundled copy of NSS and replace with README. Created 4 years, 6 months ago
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1 /*
2 * poly1305.h - header file for Poly1305 implementation.
3 *
4 * This Source Code Form is subject to the terms of the Mozilla Public
5 * License, v. 2.0. If a copy of the MPL was not distributed with this
6 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
7
8 #ifndef FREEBL_POLY1305_H_
9 #define FREEBL_POLY1305_H_
10
11 typedef unsigned char poly1305_state[512];
12
13 /* Poly1305Init sets up |state| so that it can be used to calculate an
14 * authentication tag with the one-time key |key|. Note that |key| is a
15 * one-time key and therefore there is no `reset' method because that would
16 * enable several messages to be authenticated with the same key. */
17 extern void Poly1305Init(poly1305_state* state, const unsigned char key[32]);
18
19 /* Poly1305Update processes |in_len| bytes from |in|. It can be called zero or
20 * more times after poly1305_init. */
21 extern void Poly1305Update(poly1305_state* state, const unsigned char* in,
22 size_t inLen);
23
24 /* Poly1305Finish completes the poly1305 calculation and writes a 16 byte
25 * authentication tag to |mac|. */
26 extern void Poly1305Finish(poly1305_state* state, unsigned char mac[16]);
27
28 #endif /* FREEBL_POLY1305_H_ */
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