Method final

src/pull/sha1.hpp:280–322

 */

inline std::string SHA1::final()
{
    /* Total number of hashed bits */
    uint64_t total_bits = (transforms*BLOCK_BYTES + buffer.size()) * 8;

    /* Padding */
    buffer += (char)0x80;
    size_t orig_size = buffer.size();
    while (buffer.size() < BLOCK_BYTES)
    {
        buffer += (char)0x00;
    }

    uint32_t block[BLOCK_INTS];
    buffer_to_block(buffer, block);

    if (orig_size > BLOCK_BYTES - 8)
    {
        transform(digest, block, transforms);
        for (size_t i = 0; i < BLOCK_INTS - 2; i++)
        {
            block[i] = 0;
        }
    }

    /* Append total_bits, split this uint64_t into two uint32_t */
    block[BLOCK_INTS - 1] = (uint32_t)total_bits;
    block[BLOCK_INTS - 2] = (uint32_t)(total_bits >> 32);
    transform(digest, block, transforms);

    /* Hex std::string */
    std::ostringstream result;
    for (size_t i = 0; i < sizeof(digest) / sizeof(digest[0]); i++)
    {
        result << std::hex << std::setfill('0') << std::setw(8);
        result << digest[i];
    }

    /* Reset for next run */
    reset(digest, buffer, transforms);

    return result.str();
}


inline std::string SHA1::from_file(const std::string &filename)