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>
99 lines
2.9 KiB
C
99 lines
2.9 KiB
C
/**
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* \file sha1.h
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*
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* \brief SHA-1 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_SHA1_H
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#define MBEDTLS_SHA1_H
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#define SHA1_DIGEST_LENGTH 20
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#define SHA1_BLOCK_LENGTH 64
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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-1 context structure
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*/
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typedef struct
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{
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uint32_t total[2]; /*!< number of bytes processed */
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uint32_t state[5]; /*!< intermediate digest state */
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unsigned char buffer[SHA1_BLOCK_LENGTH]; /*!< data block being processed */
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}
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mbedtls_sha1_context;
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/**
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* \brief Initialize SHA-1 context
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*
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* \param ctx SHA-1 context to be initialized
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*/
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void mbedtls_sha1_init( mbedtls_sha1_context *ctx );
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/**
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* \brief Clear SHA-1 context
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*
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* \param ctx SHA-1 context to be cleared
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*/
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void mbedtls_sha1_free( mbedtls_sha1_context *ctx );
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/**
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* \brief SHA-1 context setup
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*
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* \param ctx context to be initialized
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*/
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void mbedtls_sha1_starts( mbedtls_sha1_context *ctx );
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/**
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* \brief SHA-1 process buffer
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*
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* \param ctx SHA-1 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_sha1_update( mbedtls_sha1_context *ctx, const unsigned char *input, size_t ilen );
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/**
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* \brief SHA-1 final digest
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*
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* \param ctx SHA-1 context
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* \param output SHA-1 checksum result
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*/
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void mbedtls_sha1_finish( mbedtls_sha1_context *ctx, unsigned char output[SHA1_DIGEST_LENGTH] );
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/* Internal use */
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void mbedtls_sha1_process( mbedtls_sha1_context *ctx, const unsigned char data[SHA1_BLOCK_LENGTH] );
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/**
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* \brief Output = SHA-1( 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-1 checksum result
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*/
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void mbedtls_sha1( const unsigned char *input, size_t ilen, unsigned char output[SHA1_DIGEST_LENGTH] );
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void HMAC_SHA1(const uint8_t* key, size_t key_length, const uint8_t *in, size_t n, uint8_t out[SHA1_DIGEST_LENGTH]);
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uint32_t TOTP_HMAC_SHA1(const uint8_t* key, size_t key_length, const uint8_t *in, size_t n);
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#endif /* mbedtls_sha1.h */
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