869746577a
Also normalize the first line of the copyright headers. This commit was generated using the following script: # ======================== #!/bin/sh # Find scripts find -path './.git' -prune -o '(' -name '*.c' -o -name '*.cpp' -o -name '*.fmt' -o -name '*.h' ')' -print | xargs sed -i ' # Normalize the first line of the copyright headers (no text on the first line of a block comment) /^\/\*.*Copyright.*Arm/I { i\ /* s/^\// / } /Copyright.*Arm/I { # Print copyright declaration p # Read the two lines immediately following the copyright declaration N N # Insert Apache header if it is missing /SPDX/! i\ * SPDX-License-Identifier: Apache-2.0\ *\ * Licensed under the Apache License, Version 2.0 (the "License"); you may\ * not use this file except in compliance with the License.\ * You may obtain a copy of the License at\ *\ * http://www.apache.org/licenses/LICENSE-2.0\ *\ * Unless required by applicable law or agreed to in writing, software\ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT\ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\ * See the License for the specific language governing permissions and\ * limitations under the License. # Clear copyright declaration from buffer D } ' # ======================== Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
107 lines
3 KiB
C
107 lines
3 KiB
C
/**
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* \file random.h
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*
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* \brief This file contains the prototypes of helper functions to generate
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* random numbers for the purpose of testing.
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*/
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/*
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* Copyright (C) 2020, 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 TEST_RANDOM_H
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#define TEST_RANDOM_H
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#if !defined(MBEDTLS_CONFIG_FILE)
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#include "mbedtls/config.h"
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#else
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#include MBEDTLS_CONFIG_FILE
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#endif
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#include <stddef.h>
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#include <stdint.h>
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typedef struct
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{
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unsigned char *buf;
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size_t length;
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} mbedtls_test_rnd_buf_info;
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/**
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* Info structure for the pseudo random function
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*
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* Key should be set at the start to a test-unique value.
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* Do not forget endianness!
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* State( v0, v1 ) should be set to zero.
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*/
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typedef struct
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{
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uint32_t key[16];
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uint32_t v0, v1;
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} mbedtls_test_rnd_pseudo_info;
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/**
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* This function just returns data from rand().
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* Although predictable and often similar on multiple
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* runs, this does not result in identical random on
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* each run. So do not use this if the results of a
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* test depend on the random data that is generated.
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*
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* rng_state shall be NULL.
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*/
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int mbedtls_test_rnd_std_rand( void *rng_state,
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unsigned char *output,
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size_t len );
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/**
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* This function only returns zeros
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*
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* rng_state shall be NULL.
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*/
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int mbedtls_test_rnd_zero_rand( void *rng_state,
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unsigned char *output,
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size_t len );
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/**
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* This function returns random based on a buffer it receives.
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*
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* rng_state shall be a pointer to a rnd_buf_info structure.
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*
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* The number of bytes released from the buffer on each call to
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* the random function is specified by per_call. (Can be between
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* 1 and 4)
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*
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* After the buffer is empty it will return rand();
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*/
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int mbedtls_test_rnd_buffer_rand( void *rng_state,
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unsigned char *output,
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size_t len );
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/**
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* This function returns random based on a pseudo random function.
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* This means the results should be identical on all systems.
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* Pseudo random is based on the XTEA encryption algorithm to
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* generate pseudorandom.
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*
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* rng_state shall be a pointer to a rnd_pseudo_info structure.
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*/
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int mbedtls_test_rnd_pseudo_rand( void *rng_state,
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unsigned char *output,
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size_t len );
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#endif /* TEST_RANDOM_H */
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