Willie Solano / mbedtls-slave-prot-prod

mbed TLS Build

Dependents:   Slave-prot-prod

include/mbedtls/havege.h@1:1a219dea6cb5, 2019-06-04 (annotated)

Committer:
williequesada
Date:
Tue Jun 04 16:03:38 2019 +0000
Revision:
1:1a219dea6cb5
Parent:
0:cdf462088d13 
compartir a Pablo

Who changed what in which revision?

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markrad 0:cdf462088d13 1 /**
markrad 0:cdf462088d13 2 * \file havege.h
markrad 0:cdf462088d13 3 *
markrad 0:cdf462088d13 4 * \brief HAVEGE: HArdware Volatile Entropy Gathering and Expansion
markrad 0:cdf462088d13 5 *
markrad 0:cdf462088d13 6 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
markrad 0:cdf462088d13 7 * SPDX-License-Identifier: Apache-2.0
markrad 0:cdf462088d13 8 *
markrad 0:cdf462088d13 9 * Licensed under the Apache License, Version 2.0 (the "License"); you may
markrad 0:cdf462088d13 10 * not use this file except in compliance with the License.
markrad 0:cdf462088d13 11 * You may obtain a copy of the License at
markrad 0:cdf462088d13 12 *
markrad 0:cdf462088d13 13 * http://www.apache.org/licenses/LICENSE-2.0
markrad 0:cdf462088d13 14 *
markrad 0:cdf462088d13 15 * Unless required by applicable law or agreed to in writing, software
markrad 0:cdf462088d13 16 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
markrad 0:cdf462088d13 17 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
markrad 0:cdf462088d13 18 * See the License for the specific language governing permissions and
markrad 0:cdf462088d13 19 * limitations under the License.
markrad 0:cdf462088d13 20 *
markrad 0:cdf462088d13 21 * This file is part of mbed TLS (https://tls.mbed.org)
markrad 0:cdf462088d13 22 */
markrad 0:cdf462088d13 23 #ifndef MBEDTLS_HAVEGE_H
markrad 0:cdf462088d13 24 #define MBEDTLS_HAVEGE_H
markrad 0:cdf462088d13 25
markrad 0:cdf462088d13 26 #include <stddef.h>
markrad 0:cdf462088d13 27
markrad 0:cdf462088d13 28 #define MBEDTLS_HAVEGE_COLLECT_SIZE 1024
markrad 0:cdf462088d13 29
markrad 0:cdf462088d13 30 #ifdef __cplusplus
markrad 0:cdf462088d13 31 extern "C" {
markrad 0:cdf462088d13 32 #endif
markrad 0:cdf462088d13 33
markrad 0:cdf462088d13 34 /**
markrad 0:cdf462088d13 35 * \brief HAVEGE state structure
markrad 0:cdf462088d13 36 */
markrad 0:cdf462088d13 37 typedef struct
markrad 0:cdf462088d13 38 {
markrad 0:cdf462088d13 39 int PT1, PT2, offset[2];
markrad 0:cdf462088d13 40 int pool[MBEDTLS_HAVEGE_COLLECT_SIZE];
markrad 0:cdf462088d13 41 int WALK[8192];
markrad 0:cdf462088d13 42 }
markrad 0:cdf462088d13 43 mbedtls_havege_state;
markrad 0:cdf462088d13 44
markrad 0:cdf462088d13 45 /**
markrad 0:cdf462088d13 46 * \brief HAVEGE initialization
markrad 0:cdf462088d13 47 *
markrad 0:cdf462088d13 48 * \param hs HAVEGE state to be initialized
markrad 0:cdf462088d13 49 */
markrad 0:cdf462088d13 50 void mbedtls_havege_init( mbedtls_havege_state *hs );
markrad 0:cdf462088d13 51
markrad 0:cdf462088d13 52 /**
markrad 0:cdf462088d13 53 * \brief Clear HAVEGE state
markrad 0:cdf462088d13 54 *
markrad 0:cdf462088d13 55 * \param hs HAVEGE state to be cleared
markrad 0:cdf462088d13 56 */
markrad 0:cdf462088d13 57 void mbedtls_havege_free( mbedtls_havege_state *hs );
markrad 0:cdf462088d13 58
markrad 0:cdf462088d13 59 /**
markrad 0:cdf462088d13 60 * \brief HAVEGE rand function
markrad 0:cdf462088d13 61 *
markrad 0:cdf462088d13 62 * \param p_rng A HAVEGE state
markrad 0:cdf462088d13 63 * \param output Buffer to fill
markrad 0:cdf462088d13 64 * \param len Length of buffer
markrad 0:cdf462088d13 65 *
markrad 0:cdf462088d13 66 * \return 0
markrad 0:cdf462088d13 67 */
markrad 0:cdf462088d13 68 int mbedtls_havege_random( void *p_rng, unsigned char *output, size_t len );
markrad 0:cdf462088d13 69
markrad 0:cdf462088d13 70 #ifdef __cplusplus
markrad 0:cdf462088d13 71 }
markrad 0:cdf462088d13 72 #endif
markrad 0:cdf462088d13 73
markrad 0:cdf462088d13 74 #endif /* havege.h */