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Klinola avatar Klinola commented on May 24, 2024

Incorrect Indeed
It ought to return dd6534d1ba953a02a1c4e8f29ee5d54d8dd43591d735e67f885b2c56f0051bdc
but returns bcd7fdea9a0b1dc7f84f1dc1229e3bff8fa4c2802b27ee392acbd1a5d3784062

#include "sha256.cuh"
#include <stdint.h>
#include <stdio.h>



__global__ void sha256_cuda(BYTE *input, BYTE *output, size_t length) {
    SHA256_CTX ctx;
    sha256_init(&ctx);
    sha256_update(&ctx, input, length);
    sha256_final(&ctx, output);
}

int main() {
    const BYTE message_hash[] = {
        0xdd, 0xab, 0x86, 0x14, 0x43, 0x87, 0xd2, 0xe1,
        0x84, 0xc4, 0x29, 0x5c, 0x85, 0xc7, 0xce, 0xf3,
        0xc5, 0xcc, 0x83, 0x87, 0x7d, 0x9f, 0x91, 0x98,
        0x27, 0x80, 0xae, 0x66, 0x22, 0x0b, 0xb1, 0xaf
    };
    BYTE output[SHA256_BLOCK_SIZE];

    BYTE *d_input, *d_output;

    cudaMalloc((void **)&d_input, sizeof(message_hash));
    cudaMalloc((void **)&d_output, SHA256_BLOCK_SIZE);


    cudaMemcpy(d_input, message_hash, sizeof(message_hash), cudaMemcpyHostToDevice);


    sha256_cuda<<<1, 1>>>(d_input, d_output, sizeof(message_hash));


    cudaMemcpy(output, d_output, SHA256_BLOCK_SIZE, cudaMemcpyDeviceToHost);

    for (int i = 0; i < SHA256_BLOCK_SIZE; i++)
        printf("%02x", output[i]);
    printf("\n");

    cudaFree(d_input);
    cudaFree(d_output);

    return 0;
}
···

from cudasha256.

Horkyze avatar Horkyze commented on May 24, 2024

Hi guys, this was a school project, from long ago, if you have ideas how to fix it feel free to do a PR, I will merge it. Im not planning to maintain / fix / improve this.

from cudasha256.

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