mirror of
https://github.com/raspberrypi/pico-sdk.git
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174 lines
6.6 KiB
C
174 lines
6.6 KiB
C
/**
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* Copyright (c) 2023 Raspberry Pi (Trading) Ltd.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <stdio.h>
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#include <string.h>
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#include <inttypes.h>
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#include <stdlib.h>
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#include "pico/stdlib.h"
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#include "pico/sha256.h"
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#define BUFFER_SIZE 10000
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static void run_test(bool use_dma) {
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pico_sha256_state_t state;
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// Test empty
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const uint8_t empty_expected[] = { \
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0xe3, 0xb0, 0xc4, 0x42, 0x98, 0xfc, 0x1c, 0x14, 0x9a, 0xfb, \
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0xf4, 0xc8, 0x99, 0x6f, 0xb9, 0x24, 0x27, 0xae, 0x41, 0xe4, \
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0x64, 0x9b, 0x93, 0x4c, 0xa4, 0x95, 0x99, 0x1b, 0x78, 0x52, \
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0xb8, 0x55 };
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sha256_result_t result;
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int rc = pico_sha256_start_blocking(&state, SHA256_BIG_ENDIAN, use_dma);
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hard_assert(rc == PICO_OK);
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pico_sha256_update_blocking(&state, NULL, 0);
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pico_sha256_finish(&state, &result);
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hard_assert(memcmp(empty_expected, &result, SHA256_RESULT_BYTES) == 0);
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// nist 1
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const uint8_t nist_1[] = { 0x61, 0x62, 0x63 };
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const uint8_t nist_1_expected[] = { \
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0xba, 0x78, 0x16, 0xbf, 0x8f, 0x01, 0xcf, 0xea, 0x41, 0x41, \
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0x40, 0xde, 0x5d, 0xae, 0x22, 0x23, 0xb0, 0x03, 0x61, 0xa3, \
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0x96, 0x17, 0x7a, 0x9c, 0xb4, 0x10, 0xff, 0x61, 0xf2, 0x00, \
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0x15, 0xad };
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rc = pico_sha256_start_blocking(&state, SHA256_BIG_ENDIAN, use_dma);
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hard_assert(rc == PICO_OK);
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pico_sha256_update_blocking(&state, nist_1, sizeof(nist_1));
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pico_sha256_finish(&state, &result);
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hard_assert(memcmp(nist_1_expected, &result.bytes, SHA256_RESULT_BYTES) == 0);
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// RC4.16
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const uint8_t rc_4_16[] = { \
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0xde, 0x18, 0x89, 0x41, 0xa3, 0x37, 0x5d, 0x3a, 0x8a, 0x06, \
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0x1e, 0x67, 0x57, 0x6e, 0x92, 0x6d };
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const uint8_t rc_4_16_expected[] = { \
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0x06, 0x7c, 0x53, 0x12, 0x69, 0x73, 0x5c, 0xa7, 0xf5, 0x41, \
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0xfd, 0xac, 0xa8, 0xf0, 0xdc, 0x76, 0x30, 0x5d, 0x3c, 0xad, \
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0xa1, 0x40, 0xf8, 0x93, 0x72, 0xa4, 0x10, 0xfe, 0x5e, 0xff, \
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0x6e, 0x4d };
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rc = pico_sha256_start_blocking(&state, SHA256_BIG_ENDIAN, use_dma);
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hard_assert(rc == PICO_OK);
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pico_sha256_update_blocking(&state, rc_4_16, sizeof(rc_4_16));
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pico_sha256_finish(&state, &result);
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hard_assert(memcmp(rc_4_16_expected, &result.bytes, SHA256_RESULT_BYTES) == 0);
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// RC4.55
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const uint8_t rc_4_55[] = { \
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0xde, 0x18, 0x89, 0x41, 0xa3, 0x37, 0x5d, 0x3a, 0x8a, 0x06, \
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0x1e, 0x67, 0x57, 0x6e, 0x92, 0x6d, 0xc7, 0x1a, 0x7f, 0xa3, \
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0xf0, 0xcc, 0xeb, 0x97, 0x45, 0x2b, 0x4d, 0x32, 0x27, 0x96, \
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0x5f, 0x9e, 0xa8, 0xcc, 0x75, 0x07, 0x6d, 0x9f, 0xb9, 0xc5, \
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0x41, 0x7a, 0xa5, 0xcb, 0x30, 0xfc, 0x22, 0x19, 0x8b, 0x34, \
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0x98, 0x2d, 0xbb, 0x62, 0x9e };
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const uint8_t rc_4_55_expected[] = { \
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0x03, 0x80, 0x51, 0xe9, 0xc3, 0x24, 0x39, 0x3b, 0xd1, 0xca, \
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0x19, 0x78, 0xdd, 0x09, 0x52, 0xc2, 0xaa, 0x37, 0x42, 0xca, \
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0x4f, 0x1b, 0xd5, 0xcd, 0x46, 0x11, 0xce, 0xa8, 0x38, 0x92, \
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0xd3, 0x82 };
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rc = pico_sha256_start_blocking(&state, SHA256_BIG_ENDIAN, use_dma);
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hard_assert(rc == PICO_OK);
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pico_sha256_update_blocking(&state, rc_4_55, sizeof(rc_4_55));
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pico_sha256_finish(&state, &result);
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hard_assert(memcmp(rc_4_55_expected, result.bytes, SHA256_RESULT_BYTES) == 0);
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// nist 3
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uint8_t *buffer = malloc(10000);
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memset(buffer, 0x61, BUFFER_SIZE);
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const uint8_t nist_3_expected[] = { \
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0xcd, 0xc7, 0x6e, 0x5c, 0x99, 0x14, 0xfb, 0x92, 0x81, 0xa1, \
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0xc7, 0xe2, 0x84, 0xd7, 0x3e, 0x67, 0xf1, 0x80, 0x9a, 0x48, \
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0xa4, 0x97, 0x20, 0x0e, 0x04, 0x6d, 0x39, 0xcc, 0xc7, 0x11, \
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0x2c, 0xd0 };
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uint64_t start = time_us_64();
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rc = pico_sha256_start_blocking(&state, SHA256_BIG_ENDIAN, use_dma);
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hard_assert(rc == PICO_OK);
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for(int i = 0; i < 1000000; i += BUFFER_SIZE) {
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pico_sha256_update_blocking(&state, buffer, BUFFER_SIZE);
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}
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pico_sha256_finish(&state, &result);
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uint64_t pico_time = time_us_64() - start;
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printf("Pico hw time for sha256 of 1M bytes %s DMA %"PRIu64"ms\n", use_dma ? "with" : "without", pico_time / 1000);
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hard_assert(memcmp(nist_3_expected, result.bytes, SHA256_RESULT_BYTES) == 0);
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// Cause an error
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rc = pico_sha256_start_blocking(&state, SHA256_BIG_ENDIAN, use_dma);
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hard_assert(rc == PICO_OK);
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pico_sha256_update(&state, buffer, BUFFER_SIZE); // non-blocking!
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if (use_dma) {
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assert(dma_channel_is_busy(state.channel));
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dma_channel_wait_for_finish_blocking(state.channel);
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dma_channel_configure(
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state.channel,
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&state.config,
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sha256_get_write_addr(),
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buffer,
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BUFFER_SIZE,
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true
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);
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dma_channel_wait_for_finish_blocking(state.channel);
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} else {
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// If we're not using DMA, write a word at a time
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for(int i = 0; i < BUFFER_SIZE; i += sizeof(uint32_t)) {
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sha256_put_word(*((uint32_t*)(buffer + i)));
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}
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}
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sha256_wait_ready_blocking();
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hard_assert(sha256_err_not_ready());
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pico_sha256_finish(&state, NULL); // passing null to just release the hardware
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// check we can restart
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rc = pico_sha256_start_blocking(&state, SHA256_BIG_ENDIAN, use_dma);
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hard_assert(rc == PICO_OK);
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// Check hardware is claimed
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pico_sha256_state_t duff = {0};
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rc = pico_sha256_try_start(&duff, SHA256_BIG_ENDIAN, use_dma);
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hard_assert(rc == PICO_ERROR_RESOURCE_IN_USE);
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rc = pico_sha256_start_blocking_until(&duff, SHA256_BIG_ENDIAN, use_dma, make_timeout_time_ms(100));
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hard_assert(rc == PICO_ERROR_TIMEOUT);
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pico_sha256_update_blocking(&state, nist_1, sizeof(nist_1));
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pico_sha256_finish(&state, &result);
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hard_assert(memcmp(nist_1_expected, result.bytes, SHA256_RESULT_BYTES) == 0);
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// Repeat with multiple calls
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rc = pico_sha256_start_blocking(&state, SHA256_BIG_ENDIAN, use_dma);
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hard_assert(rc == PICO_OK);
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pico_sha256_update_blocking(&state, nist_1+0, 1);
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pico_sha256_update_blocking(&state, nist_1+1, 1);
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pico_sha256_update_blocking(&state, nist_1+2, 1);
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pico_sha256_finish(&state, &result);
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hard_assert(memcmp(nist_1_expected, result.bytes, SHA256_RESULT_BYTES) == 0);
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// Test different size of buffer for hardware "not ready" errors
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memset(buffer, 0, 1024);
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for(int i=0; i <= 1024; i++) {
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rc = pico_sha256_start_blocking(&state, SHA256_BIG_ENDIAN, use_dma);
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hard_assert(rc == PICO_OK);
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pico_sha256_update(&state, buffer, i);
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pico_sha256_finish(&state, &result);
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}
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free(buffer);
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}
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int main() {
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stdio_init_all();
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run_test(false);
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run_test(true);
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printf("Test passed\n");
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}
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