Method Encrypt

src/bip324.cpp:73–87

}

void BIP324Cipher::Encrypt(std::span<const std::byte> contents, std::span<const std::byte> aad, bool ignore, std::span<std::byte> output) noexcept
{
    assert(output.size() == contents.size() + EXPANSION);

    // Encrypt length.
    std::byte len[LENGTH_LEN];
    len[0] = std::byte{(uint8_t)(contents.size() & 0xFF)};
    len[1] = std::byte{(uint8_t)((contents.size() >> 8) & 0xFF)};
    len[2] = std::byte{(uint8_t)((contents.size() >> 16) & 0xFF)};
    m_send_l_cipher->Crypt(len, output.first(LENGTH_LEN));

    // Encrypt plaintext.
    std::byte header[HEADER_LEN] = {ignore ? IGNORE_BIT : std::byte{0}};
    m_send_p_cipher->Encrypt(header, contents, aad, output.subspan(LENGTH_LEN));
}

uint32_t BIP324Cipher::DecryptLength(std::span<const std::byte> input) noexcept
{