diff options
Diffstat (limited to 'src/test/crypto_tests.cpp')
-rw-r--r-- | src/test/crypto_tests.cpp | 391 |
1 files changed, 289 insertions, 102 deletions
diff --git a/src/test/crypto_tests.cpp b/src/test/crypto_tests.cpp index f3fd83a0cc..4ac12bf969 100644 --- a/src/test/crypto_tests.cpp +++ b/src/test/crypto_tests.cpp @@ -1,24 +1,25 @@ -// Copyright (c) 2014-2018 The Bitcoin Core developers +// Copyright (c) 2014-2019 The Bitcoin Core developers // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. #include <crypto/aes.h> #include <crypto/chacha20.h> +#include <crypto/chacha_poly_aead.h> +#include <crypto/poly1305.h> +#include <crypto/hkdf_sha256_32.h> +#include <crypto/hmac_sha256.h> +#include <crypto/hmac_sha512.h> #include <crypto/ripemd160.h> #include <crypto/sha1.h> #include <crypto/sha256.h> #include <crypto/sha512.h> -#include <crypto/hmac_sha256.h> -#include <crypto/hmac_sha512.h> #include <random.h> #include <util/strencodings.h> -#include <test/test_bitcoin.h> +#include <test/setup_common.h> #include <vector> #include <boost/test/unit_test.hpp> -#include <openssl/aes.h> -#include <openssl/evp.h> BOOST_FIXTURE_TEST_SUITE(crypto_tests, BasicTestingSetup) @@ -66,26 +67,6 @@ static void TestHMACSHA512(const std::string &hexkey, const std::string &hexin, TestVector(CHMAC_SHA512(key.data(), key.size()), ParseHex(hexin), ParseHex(hexout)); } -static void TestAES128(const std::string &hexkey, const std::string &hexin, const std::string &hexout) -{ - std::vector<unsigned char> key = ParseHex(hexkey); - std::vector<unsigned char> in = ParseHex(hexin); - std::vector<unsigned char> correctout = ParseHex(hexout); - std::vector<unsigned char> buf, buf2; - - assert(key.size() == 16); - assert(in.size() == 16); - assert(correctout.size() == 16); - AES128Encrypt enc(key.data()); - buf.resize(correctout.size()); - buf2.resize(correctout.size()); - enc.Encrypt(buf.data(), in.data()); - BOOST_CHECK_EQUAL(HexStr(buf), HexStr(correctout)); - AES128Decrypt dec(key.data()); - dec.Decrypt(buf2.data(), buf.data()); - BOOST_CHECK_EQUAL(HexStr(buf2), HexStr(in)); -} - static void TestAES256(const std::string &hexkey, const std::string &hexin, const std::string &hexout) { std::vector<unsigned char> key = ParseHex(hexkey); @@ -105,47 +86,6 @@ static void TestAES256(const std::string &hexkey, const std::string &hexin, cons BOOST_CHECK(buf == in); } -static void TestAES128CBC(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 - AES128CBCEncrypt 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()); - AES128CBCDecrypt 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 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); @@ -187,17 +127,63 @@ static void TestAES256CBC(const std::string &hexkey, const std::string &hexiv, b } } -static void TestChaCha20(const std::string &hexkey, uint64_t nonce, uint64_t seek, const std::string& hexout) +static void TestChaCha20(const std::string &hex_message, const std::string &hexkey, uint64_t nonce, uint64_t seek, const std::string& hexout) { std::vector<unsigned char> key = ParseHex(hexkey); + std::vector<unsigned char> m = ParseHex(hex_message); ChaCha20 rng(key.data(), key.size()); rng.SetIV(nonce); rng.Seek(seek); std::vector<unsigned char> out = ParseHex(hexout); std::vector<unsigned char> outres; outres.resize(out.size()); - rng.Output(outres.data(), outres.size()); + assert(hex_message.empty() || m.size() == out.size()); + + // perform the ChaCha20 round(s), if message is provided it will output the encrypted ciphertext otherwise the keystream + if (!hex_message.empty()) { + rng.Crypt(m.data(), outres.data(), outres.size()); + } else { + rng.Keystream(outres.data(), outres.size()); + } BOOST_CHECK(out == outres); + if (!hex_message.empty()) { + // Manually XOR with the keystream and compare the output + rng.SetIV(nonce); + rng.Seek(seek); + std::vector<unsigned char> only_keystream(outres.size()); + rng.Keystream(only_keystream.data(), only_keystream.size()); + for (size_t i = 0; i != m.size(); i++) { + outres[i] = m[i] ^ only_keystream[i]; + } + BOOST_CHECK(out == outres); + } +} + +static void TestPoly1305(const std::string &hexmessage, const std::string &hexkey, const std::string& hextag) +{ + std::vector<unsigned char> key = ParseHex(hexkey); + std::vector<unsigned char> m = ParseHex(hexmessage); + std::vector<unsigned char> tag = ParseHex(hextag); + std::vector<unsigned char> tagres; + tagres.resize(POLY1305_TAGLEN); + poly1305_auth(tagres.data(), m.data(), m.size(), key.data()); + BOOST_CHECK(tag == tagres); +} + +static void TestHKDF_SHA256_32(const std::string &ikm_hex, const std::string &salt_hex, const std::string &info_hex, const std::string &okm_check_hex) { + std::vector<unsigned char> initial_key_material = ParseHex(ikm_hex); + std::vector<unsigned char> salt = ParseHex(salt_hex); + std::vector<unsigned char> info = ParseHex(info_hex); + + + // our implementation only supports strings for the "info" and "salt", stringify them + std::string salt_stringified(reinterpret_cast<char*>(salt.data()), salt.size()); + std::string info_stringified(reinterpret_cast<char*>(info.data()), info.size()); + + CHKDF_HMAC_SHA256_L32 hkdf32(initial_key_material.data(), initial_key_material.size(), salt_stringified); + unsigned char out[32]; + hkdf32.Expand32(info_stringified, out); + BOOST_CHECK(HexStr(out, out + 32) == okm_check_hex); } static std::string LongTestString() { @@ -428,14 +414,9 @@ BOOST_AUTO_TEST_CASE(hmac_sha512_testvectors) { BOOST_AUTO_TEST_CASE(aes_testvectors) { // AES test vectors from FIPS 197. - TestAES128("000102030405060708090a0b0c0d0e0f", "00112233445566778899aabbccddeeff", "69c4e0d86a7b0430d8cdb78070b4c55a"); TestAES256("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f", "00112233445566778899aabbccddeeff", "8ea2b7ca516745bfeafc49904b496089"); // AES-ECB test vectors from NIST sp800-38a. - TestAES128("2b7e151628aed2a6abf7158809cf4f3c", "6bc1bee22e409f96e93d7e117393172a", "3ad77bb40d7a3660a89ecaf32466ef97"); - TestAES128("2b7e151628aed2a6abf7158809cf4f3c", "ae2d8a571e03ac9c9eb76fac45af8e51", "f5d3d58503b9699de785895a96fdbaaf"); - TestAES128("2b7e151628aed2a6abf7158809cf4f3c", "30c81c46a35ce411e5fbc1191a0a52ef", "43b1cd7f598ece23881b00e3ed030688"); - TestAES128("2b7e151628aed2a6abf7158809cf4f3c", "f69f2445df4f9b17ad2b417be66c3710", "7b0c785e27e8ad3f8223207104725dd4"); TestAES256("603deb1015ca71be2b73aef0857d77811f352c073b6108d72d9810a30914dff4", "6bc1bee22e409f96e93d7e117393172a", "f3eed1bdb5d2a03c064b5a7e3db181f8"); TestAES256("603deb1015ca71be2b73aef0857d77811f352c073b6108d72d9810a30914dff4", "ae2d8a571e03ac9c9eb76fac45af8e51", "591ccb10d410ed26dc5ba74a31362870"); TestAES256("603deb1015ca71be2b73aef0857d77811f352c073b6108d72d9810a30914dff4", "30c81c46a35ce411e5fbc1191a0a52ef", "b6ed21b99ca6f4f9f153e7b1beafed1d"); @@ -443,27 +424,6 @@ BOOST_AUTO_TEST_CASE(aes_testvectors) { } BOOST_AUTO_TEST_CASE(aes_cbc_testvectors) { - - // NIST AES CBC 128-bit encryption test-vectors - TestAES128CBC("2b7e151628aed2a6abf7158809cf4f3c", "000102030405060708090A0B0C0D0E0F", false, \ - "6bc1bee22e409f96e93d7e117393172a", "7649abac8119b246cee98e9b12e9197d"); - TestAES128CBC("2b7e151628aed2a6abf7158809cf4f3c", "7649ABAC8119B246CEE98E9B12E9197D", false, \ - "ae2d8a571e03ac9c9eb76fac45af8e51", "5086cb9b507219ee95db113a917678b2"); - TestAES128CBC("2b7e151628aed2a6abf7158809cf4f3c", "5086cb9b507219ee95db113a917678b2", false, \ - "30c81c46a35ce411e5fbc1191a0a52ef", "73bed6b8e3c1743b7116e69e22229516"); - TestAES128CBC("2b7e151628aed2a6abf7158809cf4f3c", "73bed6b8e3c1743b7116e69e22229516", false, \ - "f69f2445df4f9b17ad2b417be66c3710", "3ff1caa1681fac09120eca307586e1a7"); - - // The same vectors with padding enabled - TestAES128CBC("2b7e151628aed2a6abf7158809cf4f3c", "000102030405060708090A0B0C0D0E0F", true, \ - "6bc1bee22e409f96e93d7e117393172a", "7649abac8119b246cee98e9b12e9197d8964e0b149c10b7b682e6e39aaeb731c"); - TestAES128CBC("2b7e151628aed2a6abf7158809cf4f3c", "7649ABAC8119B246CEE98E9B12E9197D", true, \ - "ae2d8a571e03ac9c9eb76fac45af8e51", "5086cb9b507219ee95db113a917678b255e21d7100b988ffec32feeafaf23538"); - TestAES128CBC("2b7e151628aed2a6abf7158809cf4f3c", "5086cb9b507219ee95db113a917678b2", true, \ - "30c81c46a35ce411e5fbc1191a0a52ef", "73bed6b8e3c1743b7116e69e22229516f6eccda327bf8e5ec43718b0039adceb"); - TestAES128CBC("2b7e151628aed2a6abf7158809cf4f3c", "73bed6b8e3c1743b7116e69e22229516", true, \ - "f69f2445df4f9b17ad2b417be66c3710", "3ff1caa1681fac09120eca307586e1a78cb82807230e1321d3fae00d18cc2012"); - // NIST AES CBC 256-bit encryption test-vectors TestAES256CBC("603deb1015ca71be2b73aef0857d77811f352c073b6108d72d9810a30914dff4", \ "000102030405060708090A0B0C0D0E0F", false, "6bc1bee22e409f96e93d7e117393172a", \ @@ -497,25 +457,37 @@ BOOST_AUTO_TEST_CASE(aes_cbc_testvectors) { BOOST_AUTO_TEST_CASE(chacha20_testvector) { // Test vector from RFC 7539 - TestChaCha20("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f", 0x4a000000UL, 1, + + // test encryption + TestChaCha20("4c616469657320616e642047656e746c656d656e206f662074686520636c617373206f66202739393a204966204920636f756" + "c64206f6666657220796f75206f6e6c79206f6e652074697020666f7220746865206675747572652c2073756e73637265656e" + "20776f756c642062652069742e", + "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f", 0x4a000000UL, 1, + "6e2e359a2568f98041ba0728dd0d6981e97e7aec1d4360c20a27afccfd9fae0bf91b65c5524733ab8f593dabcd62b3571639d" + "624e65152ab8f530c359f0861d807ca0dbf500d6a6156a38e088a22b65e52bc514d16ccf806818ce91ab77937365af90bbf74" + "a35be6b40b8eedf2785e42874d" + ); + + // test keystream output + TestChaCha20("", "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f", 0x4a000000UL, 1, "224f51f3401bd9e12fde276fb8631ded8c131f823d2c06e27e4fcaec9ef3cf788a3b0aa372600a92b57974cded2b9334794cb" "a40c63e34cdea212c4cf07d41b769a6749f3f630f4122cafe28ec4dc47e26d4346d70b98c73f3e9c53ac40c5945398b6eda1a" "832c89c167eacd901d7e2bf363"); // Test vectors from https://tools.ietf.org/html/draft-agl-tls-chacha20poly1305-04#section-7 - TestChaCha20("0000000000000000000000000000000000000000000000000000000000000000", 0, 0, + TestChaCha20("", "0000000000000000000000000000000000000000000000000000000000000000", 0, 0, "76b8e0ada0f13d90405d6ae55386bd28bdd219b8a08ded1aa836efcc8b770dc7da41597c5157488d7724e03fb8d84a376a43b" "8f41518a11cc387b669b2ee6586"); - TestChaCha20("0000000000000000000000000000000000000000000000000000000000000001", 0, 0, + TestChaCha20("", "0000000000000000000000000000000000000000000000000000000000000001", 0, 0, "4540f05a9f1fb296d7736e7b208e3c96eb4fe1834688d2604f450952ed432d41bbe2a0b6ea7566d2a5d1e7e20d42af2c53d79" "2b1c43fea817e9ad275ae546963"); - TestChaCha20("0000000000000000000000000000000000000000000000000000000000000000", 0x0100000000000000ULL, 0, + TestChaCha20("", "0000000000000000000000000000000000000000000000000000000000000000", 0x0100000000000000ULL, 0, "de9cba7bf3d69ef5e786dc63973f653a0b49e015adbff7134fcb7df137821031e85a050278a7084527214f73efc7fa5b52770" "62eb7a0433e445f41e3"); - TestChaCha20("0000000000000000000000000000000000000000000000000000000000000000", 1, 0, + TestChaCha20("", "0000000000000000000000000000000000000000000000000000000000000000", 1, 0, "ef3fdfd6c61578fbf5cf35bd3dd33b8009631634d21e42ac33960bd138e50d32111e4caf237ee53ca8ad6426194a88545ddc4" "97a0b466e7d6bbdb0041b2f586b"); - TestChaCha20("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f", 0x0706050403020100ULL, 0, + TestChaCha20("", "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f", 0x0706050403020100ULL, 0, "f798a189f195e66982105ffb640bb7757f579da31602fc93ec01ac56f85ac3c134a4547b733b46413042c9440049176905d3b" "e59ea1c53f15916155c2be8241a38008b9a26bc35941e2444177c8ade6689de95264986d95889fb60e84629c9bd9a5acb1cc1" "18be563eb9b3a4a472f82e09a7e778492b562ef7130e88dfe031c79db9d4f7c7a899151b9a475032b63fc385245fe054e3dd5" @@ -524,6 +496,221 @@ BOOST_AUTO_TEST_CASE(chacha20_testvector) "fab78c9"); } +BOOST_AUTO_TEST_CASE(poly1305_testvector) +{ + // RFC 7539, section 2.5.2. + TestPoly1305("43727970746f6772617068696320466f72756d2052657365617263682047726f7570", + "85d6be7857556d337f4452fe42d506a80103808afb0db2fd4abff6af4149f51b", + "a8061dc1305136c6c22b8baf0c0127a9"); + + // RFC 7539, section A.3. + TestPoly1305("00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000" + "000000000000000000000000000", + "0000000000000000000000000000000000000000000000000000000000000000", + "00000000000000000000000000000000"); + + TestPoly1305("416e79207375626d697373696f6e20746f20746865204945544620696e74656e6465642062792074686520436f6e747269627" + "5746f7220666f72207075626c69636174696f6e20617320616c6c206f722070617274206f6620616e204945544620496e7465" + "726e65742d4472616674206f722052464320616e6420616e792073746174656d656e74206d6164652077697468696e2074686" + "520636f6e74657874206f6620616e204945544620616374697669747920697320636f6e7369646572656420616e2022494554" + "4620436f6e747269627574696f6e222e20537563682073746174656d656e747320696e636c756465206f72616c20737461746" + "56d656e747320696e20494554462073657373696f6e732c2061732077656c6c206173207772697474656e20616e6420656c65" + "6374726f6e696320636f6d6d756e69636174696f6e73206d61646520617420616e792074696d65206f7220706c6163652c207" + "768696368206172652061646472657373656420746f", + "0000000000000000000000000000000036e5f6b5c5e06070f0efca96227a863e", + "36e5f6b5c5e06070f0efca96227a863e"); + + TestPoly1305("416e79207375626d697373696f6e20746f20746865204945544620696e74656e6465642062792074686520436f6e747269627" + "5746f7220666f72207075626c69636174696f6e20617320616c6c206f722070617274206f6620616e204945544620496e7465" + "726e65742d4472616674206f722052464320616e6420616e792073746174656d656e74206d6164652077697468696e2074686" + "520636f6e74657874206f6620616e204945544620616374697669747920697320636f6e7369646572656420616e2022494554" + "4620436f6e747269627574696f6e222e20537563682073746174656d656e747320696e636c756465206f72616c20737461746" + "56d656e747320696e20494554462073657373696f6e732c2061732077656c6c206173207772697474656e20616e6420656c65" + "6374726f6e696320636f6d6d756e69636174696f6e73206d61646520617420616e792074696d65206f7220706c6163652c207" + "768696368206172652061646472657373656420746f", + "36e5f6b5c5e06070f0efca96227a863e00000000000000000000000000000000", + "f3477e7cd95417af89a6b8794c310cf0"); + + TestPoly1305("2754776173206272696c6c69672c20616e642074686520736c6974687920746f7665730a446964206779726520616e6420676" + "96d626c6520696e2074686520776162653a0a416c6c206d696d737920776572652074686520626f726f676f7665732c0a416e" + "6420746865206d6f6d65207261746873206f757467726162652e", + "1c9240a5eb55d38af333888604f6b5f0473917c1402b80099dca5cbc207075c0", + "4541669a7eaaee61e708dc7cbcc5eb62"); + + TestPoly1305("ffffffffffffffffffffffffffffffff", + "0200000000000000000000000000000000000000000000000000000000000000", + "03000000000000000000000000000000"); + + TestPoly1305("02000000000000000000000000000000", + "02000000000000000000000000000000ffffffffffffffffffffffffffffffff", + "03000000000000000000000000000000"); + + TestPoly1305("fffffffffffffffffffffffffffffffff0ffffffffffffffffffffffffffffff11000000000000000000000000000000", + "0100000000000000000000000000000000000000000000000000000000000000", + "05000000000000000000000000000000"); + + TestPoly1305("fffffffffffffffffffffffffffffffffbfefefefefefefefefefefefefefefe01010101010101010101010101010101", + "0100000000000000000000000000000000000000000000000000000000000000", + "00000000000000000000000000000000"); + + TestPoly1305("fdffffffffffffffffffffffffffffff", + "0200000000000000000000000000000000000000000000000000000000000000", + "faffffffffffffffffffffffffffffff"); + + TestPoly1305("e33594d7505e43b900000000000000003394d7505e4379cd01000000000000000000000000000000000000000000000001000000000000000000000000000000", + "0100000000000000040000000000000000000000000000000000000000000000", + "14000000000000005500000000000000"); + + TestPoly1305("e33594d7505e43b900000000000000003394d7505e4379cd010000000000000000000000000000000000000000000000", + "0100000000000000040000000000000000000000000000000000000000000000", + "13000000000000000000000000000000"); +} + +BOOST_AUTO_TEST_CASE(hkdf_hmac_sha256_l32_tests) +{ + // Use rfc5869 test vectors but truncated to 32 bytes (our implementation only support length 32) + TestHKDF_SHA256_32( + /* IKM */ "0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b", + /* salt */ "000102030405060708090a0b0c", + /* info */ "f0f1f2f3f4f5f6f7f8f9", + /* expected OKM */ "3cb25f25faacd57a90434f64d0362f2a2d2d0a90cf1a5a4c5db02d56ecc4c5bf"); + TestHKDF_SHA256_32( + "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f404142434445464748494a4b4c4d4e4f", + "606162636465666768696a6b6c6d6e6f707172737475767778797a7b7c7d7e7f808182838485868788898a8b8c8d8e8f909192939495969798999a9b9c9d9e9fa0a1a2a3a4a5a6a7a8a9aaabacadaeaf", + "b0b1b2b3b4b5b6b7b8b9babbbcbdbebfc0c1c2c3c4c5c6c7c8c9cacbcccdcecfd0d1d2d3d4d5d6d7d8d9dadbdcdddedfe0e1e2e3e4e5e6e7e8e9eaebecedeeeff0f1f2f3f4f5f6f7f8f9fafbfcfdfeff", + "b11e398dc80327a1c8e7f78c596a49344f012eda2d4efad8a050cc4c19afa97c"); + TestHKDF_SHA256_32( + "0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b", + "", + "", + "8da4e775a563c18f715f802a063c5a31b8a11f5c5ee1879ec3454e5f3c738d2d"); +} + +static void TestChaCha20Poly1305AEAD(bool must_succeed, unsigned int expected_aad_length, const std::string& hex_m, const std::string& hex_k1, const std::string& hex_k2, const std::string& hex_aad_keystream, const std::string& hex_encrypted_message, const std::string& hex_encrypted_message_seq_999) +{ + // we need two sequence numbers, one for the payload cipher instance... + uint32_t seqnr_payload = 0; + // ... and one for the AAD (length) cipher instance + uint32_t seqnr_aad = 0; + // we need to keep track of the position in the AAD cipher instance + // keystream since we use the same 64byte output 21 times + // (21 times 3 bytes length < 64) + int aad_pos = 0; + + std::vector<unsigned char> aead_K_1 = ParseHex(hex_k1); + std::vector<unsigned char> aead_K_2 = ParseHex(hex_k2); + std::vector<unsigned char> plaintext_buf = ParseHex(hex_m); + std::vector<unsigned char> expected_aad_keystream = ParseHex(hex_aad_keystream); + std::vector<unsigned char> expected_ciphertext_and_mac = ParseHex(hex_encrypted_message); + std::vector<unsigned char> expected_ciphertext_and_mac_sequence999 = ParseHex(hex_encrypted_message_seq_999); + + std::vector<unsigned char> ciphertext_buf(plaintext_buf.size() + POLY1305_TAGLEN, 0); + std::vector<unsigned char> plaintext_buf_new(plaintext_buf.size(), 0); + std::vector<unsigned char> cmp_ctx_buffer(64); + uint32_t out_len = 0; + + // create the AEAD instance + ChaCha20Poly1305AEAD aead(aead_K_1.data(), aead_K_1.size(), aead_K_2.data(), aead_K_2.size()); + + // create a chacha20 instance to compare against + ChaCha20 cmp_ctx(aead_K_2.data(), 32); + + // encipher + bool res = aead.Crypt(seqnr_payload, seqnr_aad, aad_pos, ciphertext_buf.data(), ciphertext_buf.size(), plaintext_buf.data(), plaintext_buf.size(), true); + // make sure the operation succeeded if expected to succeed + BOOST_CHECK_EQUAL(res, must_succeed); + if (!res) return; + + // verify ciphertext & mac against the test vector + BOOST_CHECK_EQUAL(expected_ciphertext_and_mac.size(), ciphertext_buf.size()); + BOOST_CHECK(memcmp(ciphertext_buf.data(), expected_ciphertext_and_mac.data(), ciphertext_buf.size()) == 0); + + // manually construct the AAD keystream + cmp_ctx.SetIV(seqnr_aad); + cmp_ctx.Seek(0); + cmp_ctx.Keystream(cmp_ctx_buffer.data(), 64); + BOOST_CHECK(memcmp(expected_aad_keystream.data(), cmp_ctx_buffer.data(), expected_aad_keystream.size()) == 0); + // crypt the 3 length bytes and compare the length + uint32_t len_cmp = 0; + len_cmp = (ciphertext_buf[0] ^ cmp_ctx_buffer[aad_pos + 0]) | + (ciphertext_buf[1] ^ cmp_ctx_buffer[aad_pos + 1]) << 8 | + (ciphertext_buf[2] ^ cmp_ctx_buffer[aad_pos + 2]) << 16; + BOOST_CHECK_EQUAL(len_cmp, expected_aad_length); + + // encrypt / decrypt 1000 packets + for (size_t i = 0; i < 1000; ++i) { + res = aead.Crypt(seqnr_payload, seqnr_aad, aad_pos, ciphertext_buf.data(), ciphertext_buf.size(), plaintext_buf.data(), plaintext_buf.size(), true); + BOOST_CHECK(res); + BOOST_CHECK(aead.GetLength(&out_len, seqnr_aad, aad_pos, ciphertext_buf.data())); + BOOST_CHECK_EQUAL(out_len, expected_aad_length); + res = aead.Crypt(seqnr_payload, seqnr_aad, aad_pos, plaintext_buf_new.data(), plaintext_buf_new.size(), ciphertext_buf.data(), ciphertext_buf.size(), false); + BOOST_CHECK(res); + + // make sure we repetitive get the same plaintext + BOOST_CHECK(memcmp(plaintext_buf.data(), plaintext_buf_new.data(), plaintext_buf.size()) == 0); + + // compare sequence number 999 against the test vector + if (seqnr_payload == 999) { + BOOST_CHECK(memcmp(ciphertext_buf.data(), expected_ciphertext_and_mac_sequence999.data(), expected_ciphertext_and_mac_sequence999.size()) == 0); + } + // set nonce and block counter, output the keystream + cmp_ctx.SetIV(seqnr_aad); + cmp_ctx.Seek(0); + cmp_ctx.Keystream(cmp_ctx_buffer.data(), 64); + + // crypt the 3 length bytes and compare the length + len_cmp = 0; + len_cmp = (ciphertext_buf[0] ^ cmp_ctx_buffer[aad_pos + 0]) | + (ciphertext_buf[1] ^ cmp_ctx_buffer[aad_pos + 1]) << 8 | + (ciphertext_buf[2] ^ cmp_ctx_buffer[aad_pos + 2]) << 16; + BOOST_CHECK_EQUAL(len_cmp, expected_aad_length); + + // increment the sequence number(s) + // always increment the payload sequence number + // increment the AAD keystream position by its size (3) + // increment the AAD sequence number if we would hit the 64 byte limit + seqnr_payload++; + aad_pos += CHACHA20_POLY1305_AEAD_AAD_LEN; + if (aad_pos + CHACHA20_POLY1305_AEAD_AAD_LEN > CHACHA20_ROUND_OUTPUT) { + aad_pos = 0; + seqnr_aad++; + } + } +} + +BOOST_AUTO_TEST_CASE(chacha20_poly1305_aead_testvector) +{ + /* test chacha20poly1305@bitcoin AEAD */ + + // must fail with no message + TestChaCha20Poly1305AEAD(false, 0, + "", + "0000000000000000000000000000000000000000000000000000000000000000", + "0000000000000000000000000000000000000000000000000000000000000000", "", "", ""); + + TestChaCha20Poly1305AEAD(true, 0, + /* m */ "0000000000000000000000000000000000000000000000000000000000000000", + /* k1 (payload) */ "0000000000000000000000000000000000000000000000000000000000000000", + /* k2 (AAD) */ "0000000000000000000000000000000000000000000000000000000000000000", + /* AAD keystream */ "76b8e0ada0f13d90405d6ae55386bd28bdd219b8a08ded1aa836efcc8b770dc7da41597c5157488d7724e03fb8d84a376a43b8f41518a11cc387b669b2ee6586", + /* encrypted message & MAC */ "76b8e09f07e7be5551387a98ba977c732d080dcb0f29a048e3656912c6533e32d2fc11829c1b6c1df1f551cd6131ff08", + /* encrypted message & MAC at sequence 999 */ "b0a03d5bd2855d60699e7d3a3133fa47be740fe4e4c1f967555e2d9271f31c3aaa7aa16ec62c5e24f040c08bb20c3598"); + TestChaCha20Poly1305AEAD(true, 1, + "0100000000000000000000000000000000000000000000000000000000000000", + "0000000000000000000000000000000000000000000000000000000000000000", + "0000000000000000000000000000000000000000000000000000000000000000", + "76b8e0ada0f13d90405d6ae55386bd28bdd219b8a08ded1aa836efcc8b770dc7da41597c5157488d7724e03fb8d84a376a43b8f41518a11cc387b669b2ee6586", + "77b8e09f07e7be5551387a98ba977c732d080dcb0f29a048e3656912c6533e32baf0c85b6dff8602b06cf52a6aefc62e", + "b1a03d5bd2855d60699e7d3a3133fa47be740fe4e4c1f967555e2d9271f31c3a8bd94d54b5ecabbc41ffbb0c90924080"); + TestChaCha20Poly1305AEAD(true, 255, + "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", + "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f", + "ff0102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f", + "c640c1711e3ee904ac35c57ab9791c8a1c408603a90b77a83b54f6c844cb4b06d94e7fc6c800e165acd66147e80ec45a567f6ce66d05ec0cae679dceeb890017", + "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", + "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"); +} + BOOST_AUTO_TEST_CASE(countbits_tests) { FastRandomContext ctx; @@ -532,7 +719,7 @@ BOOST_AUTO_TEST_CASE(countbits_tests) // Check handling of zero. BOOST_CHECK_EQUAL(CountBits(0), 0U); } else if (i < 10) { - for (uint64_t j = 1 << (i - 1); (j >> i) == 0; ++j) { + for (uint64_t j = (uint64_t)1 << (i - 1); (j >> i) == 0; ++j) { // Exhaustively test up to 10 bits BOOST_CHECK_EQUAL(CountBits(j), i); } |