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