2 * Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
10 typedef void (*poly1305_blocks_f) (void *ctx, const unsigned char *inp,
11 size_t len, unsigned int padbit);
12 typedef void (*poly1305_emit_f) (void *ctx, unsigned char mac[16],
13 const unsigned int nonce[4]);
15 struct poly1305_context {
16 double opaque[24]; /* large enough to hold internal state, declared
17 * 'double' to ensure at least 64-bit invariant
18 * alignment across all platforms and
20 unsigned int nonce[4];
21 unsigned char data[POLY1305_BLOCK_SIZE];
24 poly1305_blocks_f blocks;