| yuezonghe | 824eb0c | 2024-06-27 02:32:26 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved. |
| 3 | * |
| 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 |
| 8 | */ |
| 9 | |
| 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]); |
| 14 | |
| 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 |
| 19 | * configurations */ |
| 20 | unsigned int nonce[4]; |
| 21 | unsigned char data[POLY1305_BLOCK_SIZE]; |
| 22 | size_t num; |
| 23 | struct { |
| 24 | poly1305_blocks_f blocks; |
| 25 | poly1305_emit_f emit; |
| 26 | } func; |
| 27 | }; |