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https://github.com/espressif/ESP8266_RTOS_SDK.git
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5f2b5eafcf
It is that maybe less modification working on the components is better, so I just modified the platform code of AES, SHA and so on. ESP8266 has no real hardware AES, SHA or bignum peripheral, but some method can speed up the process of part of upper algorithm, so I also added the platform code of AES, SHA, bignum, ARC, MD5. ESP8266 has no platform of bignum, so users should not enable the bignum hardware at "menuconfig".
34 lines
1.0 KiB
C
34 lines
1.0 KiB
C
// Copyright 2019-2020 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may 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,
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// WITHOUT 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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#include <stdint.h>
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#include <stddef.h>
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#include <string.h>
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#include <sys/param.h>
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#include "esp_system.h"
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void esp_fill_random(void *buf, size_t len)
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{
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assert(buf != NULL);
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uint8_t *buf_bytes = (uint8_t *)buf;
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while (len > 0) {
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uint32_t word = esp_random();
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uint32_t to_copy = MIN(sizeof(word), len);
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memcpy(buf_bytes, &word, to_copy);
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buf_bytes += to_copy;
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len -= to_copy;
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}
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}
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