diff options
Diffstat (limited to 'include/crypto/poly1305.h')
| -rw-r--r-- | include/crypto/poly1305.h | 29 |
1 files changed, 27 insertions, 2 deletions
diff --git a/include/crypto/poly1305.h b/include/crypto/poly1305.h index 5fef239d0f8f..ba54f3bdcbe1 100644 --- a/include/crypto/poly1305.h +++ b/include/crypto/poly1305.h @@ -1,12 +1,16 @@ /* - * Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved. + * Copyright 2015-2021 The OpenSSL Project Authors. All Rights Reserved. * - * Licensed under the OpenSSL license (the "License"). You may not use + * Licensed under the Apache License 2.0 (the "License"). You may not use * this file except in compliance with the License. You can obtain a copy * in the file LICENSE in the source distribution or at * https://www.openssl.org/source/license.html */ +#ifndef OSSL_CRYPTO_POLY1305_H +# define OSSL_CRYPTO_POLY1305_H +# pragma once + #include <stddef.h> #define POLY1305_BLOCK_SIZE 16 @@ -15,7 +19,28 @@ typedef struct poly1305_context POLY1305; +typedef void (*poly1305_blocks_f) (void *ctx, const unsigned char *inp, + size_t len, unsigned int padbit); +typedef void (*poly1305_emit_f) (void *ctx, unsigned char mac[16], + const unsigned int nonce[4]); + +struct poly1305_context { + double opaque[24]; /* large enough to hold internal state, declared + * 'double' to ensure at least 64-bit invariant + * alignment across all platforms and + * configurations */ + unsigned int nonce[4]; + unsigned char data[POLY1305_BLOCK_SIZE]; + size_t num; + struct { + poly1305_blocks_f blocks; + poly1305_emit_f emit; + } func; +}; + size_t Poly1305_ctx_size(void); void Poly1305_Init(POLY1305 *ctx, const unsigned char key[32]); void Poly1305_Update(POLY1305 *ctx, const unsigned char *inp, size_t len); void Poly1305_Final(POLY1305 *ctx, unsigned char mac[16]); + +#endif /* OSSL_CRYPTO_POLY1305_H */ |