mbed TLS v2.16.6
poly1305.h
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1 
15 /* Copyright (C) 2006-2018, Arm Limited (or its affiliates), All Rights Reserved.
16  * SPDX-License-Identifier: GPL-2.0
17  *
18  * This program is free software; you can redistribute it and/or modify
19  * it under the terms of the GNU General Public License as published by
20  * the Free Software Foundation; either version 2 of the License, or
21  * (at your option) any later version.
22  *
23  * This program is distributed in the hope that it will be useful,
24  * but WITHOUT ANY WARRANTY; without even the implied warranty of
25  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
26  * GNU General Public License for more details.
27  *
28  * You should have received a copy of the GNU General Public License along
29  * with this program; if not, write to the Free Software Foundation, Inc.,
30  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
31  *
32  * This file is part of Mbed TLS (https://tls.mbed.org)
33  */
34 
35 #ifndef MBEDTLS_POLY1305_H
36 #define MBEDTLS_POLY1305_H
37 
38 #if !defined(MBEDTLS_CONFIG_FILE)
39 #include "config.h"
40 #else
41 #include MBEDTLS_CONFIG_FILE
42 #endif
43 
44 #include <stdint.h>
45 #include <stddef.h>
46 
47 #define MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA -0x0057
49 /* MBEDTLS_ERR_POLY1305_FEATURE_UNAVAILABLE is deprecated and should not be
50  * used. */
51 #define MBEDTLS_ERR_POLY1305_FEATURE_UNAVAILABLE -0x0059
53 /* MBEDTLS_ERR_POLY1305_HW_ACCEL_FAILED is deprecated and should not be used.
54  */
55 #define MBEDTLS_ERR_POLY1305_HW_ACCEL_FAILED -0x005B
57 #ifdef __cplusplus
58 extern "C" {
59 #endif
60 
61 #if !defined(MBEDTLS_POLY1305_ALT)
62 
64 {
65  uint32_t r[4];
66  uint32_t s[4];
67  uint32_t acc[5];
68  uint8_t queue[16];
69  size_t queue_len;
70 }
72 
73 #else /* MBEDTLS_POLY1305_ALT */
74 #include "poly1305_alt.h"
75 #endif /* MBEDTLS_POLY1305_ALT */
76 
93 
103 
118  const unsigned char key[32] );
119 
139  const unsigned char *input,
140  size_t ilen );
141 
155  unsigned char mac[16] );
156 
175 int mbedtls_poly1305_mac( const unsigned char key[32],
176  const unsigned char *input,
177  size_t ilen,
178  unsigned char mac[16] );
179 
180 #if defined(MBEDTLS_SELF_TEST)
181 
187 int mbedtls_poly1305_self_test( int verbose );
188 #endif /* MBEDTLS_SELF_TEST */
189 
190 #ifdef __cplusplus
191 }
192 #endif
193 
194 #endif /* MBEDTLS_POLY1305_H */
Configuration options (set of defines)
int mbedtls_poly1305_self_test(int verbose)
The Poly1305 checkup routine.
struct mbedtls_poly1305_context mbedtls_poly1305_context
int mbedtls_poly1305_starts(mbedtls_poly1305_context *ctx, const unsigned char key[32])
This function sets the one-time authentication key.
int mbedtls_poly1305_update(mbedtls_poly1305_context *ctx, const unsigned char *input, size_t ilen)
This functions feeds an input buffer into an ongoing Poly1305 computation.
void mbedtls_poly1305_init(mbedtls_poly1305_context *ctx)
This function initializes the specified Poly1305 context.
int mbedtls_poly1305_mac(const unsigned char key[32], const unsigned char *input, size_t ilen, unsigned char mac[16])
This function calculates the Poly1305 MAC of the input buffer with the provided key.
int mbedtls_poly1305_finish(mbedtls_poly1305_context *ctx, unsigned char mac[16])
This function generates the Poly1305 Message Authentication Code (MAC).
void mbedtls_poly1305_free(mbedtls_poly1305_context *ctx)
This function releases and clears the specified Poly1305 context.