Function TestAES256CBC

src/test/crypto_tests.cpp:92–131

}

static void TestAES256CBC(const std::string &hexkey, const std::string &hexiv, bool pad, const std::string &hexin, const std::string &hexout)
{
    std::vector<unsigned char> key = ParseHex(hexkey);
    std::vector<unsigned char> iv = ParseHex(hexiv);
    std::vector<unsigned char> in = ParseHex(hexin);
    std::vector<unsigned char> correctout = ParseHex(hexout);
    std::vector<unsigned char> realout(in.size() + AES_BLOCKSIZE);

    // Encrypt the plaintext and verify that it equals the cipher
    AES256CBCEncrypt enc(key.data(), iv.data(), pad);
    int size = enc.Encrypt(in.data(), in.size(), realout.data());
    realout.resize(size);
    BOOST_CHECK(realout.size() == correctout.size());
    BOOST_CHECK_MESSAGE(realout == correctout, HexStr(realout) + std::string(" != ") + hexout);

    // Decrypt the cipher and verify that it equals the plaintext
    std::vector<unsigned char> decrypted(correctout.size());
    AES256CBCDecrypt dec(key.data(), iv.data(), pad);
    size = dec.Decrypt(correctout.data(), correctout.size(), decrypted.data());
    decrypted.resize(size);
    BOOST_CHECK(decrypted.size() == in.size());
    BOOST_CHECK_MESSAGE(decrypted == in, HexStr(decrypted) + std::string(" != ") + hexin);

    // Encrypt and re-decrypt substrings of the plaintext and verify that they equal each-other
    for(std::vector<unsigned char>::iterator i(in.begin()); i != in.end(); ++i)
    {
        std::vector<unsigned char> sub(i, in.end());
        std::vector<unsigned char> subout(sub.size() + AES_BLOCKSIZE);
        int _size = enc.Encrypt(sub.data(), sub.size(), subout.data());
        if (_size != 0)
        {
            subout.resize(_size);
            std::vector<unsigned char> subdecrypted(subout.size());
            _size = dec.Decrypt(subout.data(), subout.size(), subdecrypted.data());
            subdecrypted.resize(_size);
            BOOST_CHECK(decrypted.size() == in.size());
            BOOST_CHECK_MESSAGE(subdecrypted == sub, HexStr(subdecrypted) + std::string(" != ") + HexStr(sub));
        }
    }
}

static void TestChaCha20(const std::string &hex_message, const std::string &hexkey, uint64_t nonce, uint64_t seek, const std::string& hexout)
{