mirror of
https://github.com/firewalkwithm3/Sensor-Watch.git
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9ebea46300
* totp : rework and add SHA256/512 * totp : comment code * totp : fix SHA224/SHA384 and examples * totp : fix bug in totp_face_lfs * totp : init_totp_record to SHA1 * totp : move TOTP-MCU to TOTP, update README and example * totp : SHAX, use size_t n instead of harcoded 8 * clarify what to put in TOTP face Co-authored-by: Emilien <Emilien> Co-authored-by: joeycastillo <joeycastillo@utexas.edu>
120 lines
3.7 KiB
C
120 lines
3.7 KiB
C
/**
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* \file sha512.h
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*
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* \brief SHA-384 and SHA-512 cryptographic hash function
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*
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* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* This file is part of mbed TLS (https://tls.mbed.org)
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*/
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#ifndef MBEDTLS_SHA512_H
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#define MBEDTLS_SHA512_H
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#define SHA384_DIGEST_LENGTH 48
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#define SHA512_DIGEST_LENGTH 64
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#define SHA512_BLOCK_LENGTH 128
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#define HMAC_IPAD 0x36
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#define HMAC_OPAD 0x5c
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#include <stddef.h>
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#include <stdint.h>
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/**
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* \brief SHA-512 context structure
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*/
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typedef struct
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{
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uint64_t total[2]; /*!< number of bytes processed */
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uint64_t state[8]; /*!< intermediate digest state */
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unsigned char buffer[SHA512_BLOCK_LENGTH]; /*!< data block being processed */
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int is384; /*!< 0 => SHA-512, else SHA-384 */
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}
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mbedtls_sha512_context;
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/**
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* \brief Initialize SHA-512 context
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*
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* \param ctx SHA-512 context to be initialized
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*/
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void mbedtls_sha512_init( mbedtls_sha512_context *ctx );
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/**
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* \brief Clear SHA-512 context
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*
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* \param ctx SHA-512 context to be cleared
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*/
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void mbedtls_sha512_free( mbedtls_sha512_context *ctx );
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/**
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* \brief Clone (the state of) a SHA-512 context
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*
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* \param dst The destination context
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* \param src The context to be cloned
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*/
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void mbedtls_sha512_clone( mbedtls_sha512_context *dst,
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const mbedtls_sha512_context *src );
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/**
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* \brief SHA-512 context setup
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*
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* \param ctx context to be initialized
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* \param is384 0 = use SHA512, 1 = use SHA384
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*/
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void mbedtls_sha512_starts( mbedtls_sha512_context *ctx, int is384 );
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/**
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* \brief SHA-512 process buffer
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*
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* \param ctx SHA-512 context
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* \param input buffer holding the data
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* \param ilen length of the input data
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*/
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void mbedtls_sha512_update( mbedtls_sha512_context *ctx, const unsigned char *input,
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size_t ilen );
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/**
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* \brief SHA-512 final digest
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*
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* \param ctx SHA-512 context
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* \param output SHA-384/512 checksum result
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*/
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void mbedtls_sha512_finish( mbedtls_sha512_context *ctx, unsigned char* output );
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/**
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* \brief Output = SHA-512( input buffer )
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*
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* \param input buffer holding the data
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* \param ilen length of the input data
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* \param output SHA-384/512 checksum result
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* \param is384 0 = use SHA512, 1 = use SHA384
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*/
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void mbedtls_sha512( const unsigned char *input, size_t ilen,
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unsigned char* output, int is384 );
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/**
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* \brief Checkup routine
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*
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* \return 0 if successful, or 1 if the test failed
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*/
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int mbedtls_sha512_self_test( int verbose );
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/* Internal use */
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void mbedtls_sha512_process( mbedtls_sha512_context *ctx, const unsigned char data[SHA512_BLOCK_LENGTH] );
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void HMAC_SHA512(const uint8_t* key, size_t key_length, const uint8_t *in, size_t n, uint8_t* out, int is384);
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uint32_t TOTP_HMAC_SHA512(const uint8_t* key, size_t key_length, const uint8_t *in, size_t n, int is384);
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#endif /* mbedtls_sha512.h */
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