SHA256.cpp

Go to the documentation of this file.

#include <sourcepp/crypto/SHA256.h>
 
#include <tomcrypt.h>
 
#include <sourcepp/crypto/Globals.h>
 
using namespace sourcepp;
 
std::array<std::byte, 32> crypto::computeSHA256(std::span<const std::byte> buffer) {
    if (!LTM_MATH || SHA256_INDEX < 0 || buffer.empty()) {
        return {};
    }
 
    hash_state sha256;
    sha256_init(&sha256);
    sha256_process(&sha256, reinterpret_cast<const unsigned char*>(buffer.data()), buffer.size());
 
    std::array<std::byte, 32> final{};
    sha256_done(&sha256, reinterpret_cast<unsigned char*>(final.data()));
    return final;
}