mbed TLS v2.16.5

poly1305.h
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1
15 /* Copyright (C) 2006-2018, Arm Limited (or its affiliates), All Rights Reserved.
16 * SPDX-License-Identifier: Apache-2.0
17 *
18 * Licensed under the Apache License, Version 2.0 (the "License"); you may
19 * not use this file except in compliance with the License.
20 * You may obtain a copy of the License at
21 *
22 * http://www.apache.org/licenses/LICENSE-2.0
23 *
24 * Unless required by applicable law or agreed to in writing, software
25 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
26 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
27 * See the License for the specific language governing permissions and
28 * limitations under the License.
29 *
30 * This file is part of Mbed TLS (https://tls.mbed.org)
31 */
32
33 #ifndef MBEDTLS_POLY1305_H
34 #define MBEDTLS_POLY1305_H
35
36 #if !defined(MBEDTLS_CONFIG_FILE)
37 #include "config.h"
38 #else
39 #include MBEDTLS_CONFIG_FILE
40 #endif
41
42 #include <stdint.h>
43 #include <stddef.h>
44
45 #define MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA -0x0057
47 /* MBEDTLS_ERR_POLY1305_FEATURE_UNAVAILABLE is deprecated and should not be
48 * used. */
49 #define MBEDTLS_ERR_POLY1305_FEATURE_UNAVAILABLE -0x0059
51 /* MBEDTLS_ERR_POLY1305_HW_ACCEL_FAILED is deprecated and should not be used.
52 */
53 #define MBEDTLS_ERR_POLY1305_HW_ACCEL_FAILED -0x005B
55 #ifdef __cplusplus
56 extern "C" {
57 #endif
58
59 #if !defined(MBEDTLS_POLY1305_ALT)
60
61 typedef struct mbedtls_poly1305_context
62 {
63 uint32_t r[4];
64 uint32_t s[4];
65 uint32_t acc[5];
66 uint8_t queue[16];
67 size_t queue_len;
68 }
69 mbedtls_poly1305_context;
70
71 #else /* MBEDTLS_POLY1305_ALT */
72 #include "poly1305_alt.h"
73 #endif /* MBEDTLS_POLY1305_ALT */
74
90 void mbedtls_poly1305_init( mbedtls_poly1305_context *ctx );
91
100 void mbedtls_poly1305_free( mbedtls_poly1305_context *ctx );
101
115 int mbedtls_poly1305_starts( mbedtls_poly1305_context *ctx,
116 const unsigned char key[32] );
117
136 int mbedtls_poly1305_update( mbedtls_poly1305_context *ctx,
137 const unsigned char *input,
138 size_t ilen );
139
152 int mbedtls_poly1305_finish( mbedtls_poly1305_context *ctx,
153 unsigned char mac[16] );
154
173 int mbedtls_poly1305_mac( const unsigned char key[32],
174 const unsigned char *input,
175 size_t ilen,
176 unsigned char mac[16] );
177
178 #if defined(MBEDTLS_SELF_TEST)
179
185 int mbedtls_poly1305_self_test( int verbose );
186 #endif /* MBEDTLS_SELF_TEST */
187
188 #ifdef __cplusplus
189 }
190 #endif
191
192 #endif /* MBEDTLS_POLY1305_H */
mbedtls_poly1305_self_test
int mbedtls_poly1305_self_test(int verbose)
The Poly1305 checkup routine.
mbedtls_poly1305_finish
int mbedtls_poly1305_finish(mbedtls_poly1305_context *ctx, unsigned char mac[16])
This function generates the Poly1305 Message Authentication Code (MAC).
mbedtls_poly1305_mac
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.
mbedtls_poly1305_context
struct mbedtls_poly1305_context mbedtls_poly1305_context
mbedtls_poly1305_context::queue_len
size_t queue_len
Definition: poly1305.h:67
mbedtls_poly1305_init
void mbedtls_poly1305_init(mbedtls_poly1305_context *ctx)
This function initializes the specified Poly1305 context.
mbedtls_poly1305_starts
int mbedtls_poly1305_starts(mbedtls_poly1305_context *ctx, const unsigned char key[32])
This function sets the one-time authentication key.
mbedtls_poly1305_context::acc
uint32_t acc[5]
Definition: poly1305.h:65
mbedtls_poly1305_context::r
uint32_t r[4]
Definition: poly1305.h:63
mbedtls_poly1305_update
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.
config.h
Configuration options (set of defines)
mbedtls_poly1305_free
void mbedtls_poly1305_free(mbedtls_poly1305_context *ctx)
This function releases and clears the specified Poly1305 context.
mbedtls_poly1305_context::s
uint32_t s[4]
Definition: poly1305.h:64
mbedtls_poly1305_context
Definition: poly1305.h:61
mbedtls_poly1305_context::queue
uint8_t queue[16]
Definition: poly1305.h:66