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tests: Remove OldSetKeyFromPassphrase/OldEncrypt/OldDecrypt

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This commit is contained in:
practicalswift 2017-08-11 09:24:26 +02:00
parent 140de14a12
commit a897d0e37a
1 changed files with 11 additions and 122 deletions
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133
src/wallet/test/crypto_tests.cpp
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@ -9,86 +9,9 @@
#include <vector> #include <vector>
#include <boost/test/unit_test.hpp> #include <boost/test/unit_test.hpp>
#include <openssl/aes.h>
#include <openssl/evp.h>
BOOST_FIXTURE_TEST_SUITE(wallet_crypto, BasicTestingSetup) BOOST_FIXTURE_TEST_SUITE(wallet_crypto, BasicTestingSetup)
bool OldSetKeyFromPassphrase(const SecureString& strKeyData, const std::vector<unsigned char>& chSalt, const unsigned int nRounds, const unsigned int nDerivationMethod, unsigned char* chKey, unsigned char* chIV)
{
if (nRounds < 1 || chSalt.size() != WALLET_CRYPTO_SALT_SIZE)
return false;
int i = 0;
if (nDerivationMethod == 0)
i = EVP_BytesToKey(EVP_aes_256_cbc(), EVP_sha512(), &chSalt[0],
(unsigned char *)&strKeyData[0], strKeyData.size(), nRounds, chKey, chIV);
if (i != (int)WALLET_CRYPTO_KEY_SIZE)
{
memory_cleanse(chKey, WALLET_CRYPTO_KEY_SIZE);
memory_cleanse(chIV, WALLET_CRYPTO_IV_SIZE);
return false;
}
return true;
}
bool OldEncrypt(const CKeyingMaterial& vchPlaintext, std::vector<unsigned char> &vchCiphertext, const unsigned char chKey[32], const unsigned char chIV[16])
{
// max ciphertext len for a n bytes of plaintext is
// n + AES_BLOCK_SIZE - 1 bytes
int nLen = vchPlaintext.size();
int nCLen = nLen + AES_BLOCK_SIZE, nFLen = 0;
vchCiphertext = std::vector<unsigned char> (nCLen);
EVP_CIPHER_CTX *ctx = EVP_CIPHER_CTX_new();
if (!ctx) return false;
bool fOk = true;
EVP_CIPHER_CTX_init(ctx);
if (fOk) fOk = EVP_EncryptInit_ex(ctx, EVP_aes_256_cbc(), nullptr, chKey, chIV) != 0;
if (fOk) fOk = EVP_EncryptUpdate(ctx, &vchCiphertext[0], &nCLen, &vchPlaintext[0], nLen) != 0;
if (fOk) fOk = EVP_EncryptFinal_ex(ctx, (&vchCiphertext[0]) + nCLen, &nFLen) != 0;
EVP_CIPHER_CTX_cleanup(ctx);
EVP_CIPHER_CTX_free(ctx);
if (!fOk) return false;
vchCiphertext.resize(nCLen + nFLen);
return true;
}
bool OldDecrypt(const std::vector<unsigned char>& vchCiphertext, CKeyingMaterial& vchPlaintext, const unsigned char chKey[32], const unsigned char chIV[16])
{
// plaintext will always be equal to or lesser than length of ciphertext
int nLen = vchCiphertext.size();
int nPLen = nLen, nFLen = 0;
vchPlaintext = CKeyingMaterial(nPLen);
EVP_CIPHER_CTX *ctx = EVP_CIPHER_CTX_new();
if (!ctx) return false;
bool fOk = true;
EVP_CIPHER_CTX_init(ctx);
if (fOk) fOk = EVP_DecryptInit_ex(ctx, EVP_aes_256_cbc(), nullptr, chKey, chIV) != 0;
if (fOk) fOk = EVP_DecryptUpdate(ctx, &vchPlaintext[0], &nPLen, &vchCiphertext[0], nLen) != 0;
if (fOk) fOk = EVP_DecryptFinal_ex(ctx, (&vchPlaintext[0]) + nPLen, &nFLen) != 0;
EVP_CIPHER_CTX_cleanup(ctx);
EVP_CIPHER_CTX_free(ctx);
if (!fOk) return false;
vchPlaintext.resize(nPLen + nFLen);
return true;
}
class TestCrypter class TestCrypter
{ {
public: public:
@ -96,25 +19,15 @@ static void TestPassphraseSingle(const std::vector<unsigned char>& vchSalt, cons
const std::vector<unsigned char>& correctKey = std::vector<unsigned char>(), const std::vector<unsigned char>& correctKey = std::vector<unsigned char>(),
const std::vector<unsigned char>& correctIV=std::vector<unsigned char>()) const std::vector<unsigned char>& correctIV=std::vector<unsigned char>())
{ {
unsigned char chKey[WALLET_CRYPTO_KEY_SIZE];
unsigned char chIV[WALLET_CRYPTO_IV_SIZE];
CCrypter crypt; CCrypter crypt;
crypt.SetKeyFromPassphrase(passphrase, vchSalt, rounds, 0); crypt.SetKeyFromPassphrase(passphrase, vchSalt, rounds, 0);
OldSetKeyFromPassphrase(passphrase, vchSalt, rounds, 0, chKey, chIV);
BOOST_CHECK_MESSAGE(memcmp(chKey, crypt.vchKey.data(), crypt.vchKey.size()) == 0, \
HexStr(chKey, chKey+sizeof(chKey)) + std::string(" != ") + HexStr(crypt.vchKey));
BOOST_CHECK_MESSAGE(memcmp(chIV, crypt.vchIV.data(), crypt.vchIV.size()) == 0, \
HexStr(chIV, chIV+sizeof(chIV)) + std::string(" != ") + HexStr(crypt.vchIV));
if(!correctKey.empty()) if(!correctKey.empty())
BOOST_CHECK_MESSAGE(memcmp(chKey, &correctKey[0], sizeof(chKey)) == 0, \ BOOST_CHECK_MESSAGE(memcmp(crypt.vchKey.data(), correctKey.data(), crypt.vchKey.size()) == 0, \
HexStr(chKey, chKey+sizeof(chKey)) + std::string(" != ") + HexStr(correctKey.begin(), correctKey.end())); HexStr(crypt.vchKey.begin(), crypt.vchKey.end()) + std::string(" != ") + HexStr(correctKey.begin(), correctKey.end()));
if(!correctIV.empty()) if(!correctIV.empty())
BOOST_CHECK_MESSAGE(memcmp(chIV, &correctIV[0], sizeof(chIV)) == 0, BOOST_CHECK_MESSAGE(memcmp(crypt.vchIV.data(), correctIV.data(), crypt.vchIV.size()) == 0,
HexStr(chIV, chIV+sizeof(chIV)) + std::string(" != ") + HexStr(correctIV.begin(), correctIV.end())); HexStr(crypt.vchIV.begin(), crypt.vchIV.end()) + std::string(" != ") + HexStr(correctIV.begin(), correctIV.end()));
} }
static void TestPassphrase(const std::vector<unsigned char>& vchSalt, const SecureString& passphrase, uint32_t rounds, static void TestPassphrase(const std::vector<unsigned char>& vchSalt, const SecureString& passphrase, uint32_t rounds,
@ -126,50 +39,26 @@ static void TestPassphrase(const std::vector<unsigned char>& vchSalt, const Secu
TestPassphraseSingle(vchSalt, SecureString(i, passphrase.end()), rounds); TestPassphraseSingle(vchSalt, SecureString(i, passphrase.end()), rounds);
} }
static void TestDecrypt(const CCrypter& crypt, const std::vector<unsigned char>& vchCiphertext, \ static void TestDecrypt(const CCrypter& crypt, const std::vector<unsigned char>& vchCiphertext, \
const std::vector<unsigned char>& vchPlaintext = std::vector<unsigned char>()) const std::vector<unsigned char>& vchPlaintext = std::vector<unsigned char>())
{ {
CKeyingMaterial vchDecrypted1; CKeyingMaterial vchDecrypted;
CKeyingMaterial vchDecrypted2; crypt.Decrypt(vchCiphertext, vchDecrypted);
int result1, result2;
result1 = crypt.Decrypt(vchCiphertext, vchDecrypted1);
result2 = OldDecrypt(vchCiphertext, vchDecrypted2, crypt.vchKey.data(), crypt.vchIV.data());
BOOST_CHECK(result1 == result2);
// These two should be equal. However, OpenSSL 1.0.1j introduced a change
// that would zero all padding except for the last byte for failed decrypts.
// This behavior was reverted for 1.0.1k.
if (vchDecrypted1 != vchDecrypted2 && vchDecrypted1.size() >= AES_BLOCK_SIZE && SSLeay() == 0x100010afL)
{
for(CKeyingMaterial::iterator it = vchDecrypted1.end() - AES_BLOCK_SIZE; it != vchDecrypted1.end() - 1; it++)
*it = 0;
}
BOOST_CHECK_MESSAGE(vchDecrypted1 == vchDecrypted2, HexStr(vchDecrypted1.begin(), vchDecrypted1.end()) + " != " + HexStr(vchDecrypted2.begin(), vchDecrypted2.end()));
if (vchPlaintext.size()) if (vchPlaintext.size())
BOOST_CHECK(CKeyingMaterial(vchPlaintext.begin(), vchPlaintext.end()) == vchDecrypted2); BOOST_CHECK(CKeyingMaterial(vchPlaintext.begin(), vchPlaintext.end()) == vchDecrypted);
} }
static void TestEncryptSingle(const CCrypter& crypt, const CKeyingMaterial& vchPlaintext, static void TestEncryptSingle(const CCrypter& crypt, const CKeyingMaterial& vchPlaintext,
const std::vector<unsigned char>& vchCiphertextCorrect = std::vector<unsigned char>()) const std::vector<unsigned char>& vchCiphertextCorrect = std::vector<unsigned char>())
{ {
std::vector<unsigned char> vchCiphertext1; std::vector<unsigned char> vchCiphertext;
std::vector<unsigned char> vchCiphertext2; crypt.Encrypt(vchPlaintext, vchCiphertext);
int result1 = crypt.Encrypt(vchPlaintext, vchCiphertext1);
int result2 = OldEncrypt(vchPlaintext, vchCiphertext2, crypt.vchKey.data(), crypt.vchIV.data());
BOOST_CHECK(result1 == result2);
BOOST_CHECK(vchCiphertext1 == vchCiphertext2);
if (!vchCiphertextCorrect.empty()) if (!vchCiphertextCorrect.empty())
BOOST_CHECK(vchCiphertext2 == vchCiphertextCorrect); BOOST_CHECK(vchCiphertext == vchCiphertextCorrect);
const std::vector<unsigned char> vchPlaintext2(vchPlaintext.begin(), vchPlaintext.end()); const std::vector<unsigned char> vchPlaintext2(vchPlaintext.begin(), vchPlaintext.end());
TestDecrypt(crypt, vchCiphertext, vchPlaintext2);
if(vchCiphertext1 == vchCiphertext2)
TestDecrypt(crypt, vchCiphertext1, vchPlaintext2);
} }
static void TestEncrypt(const CCrypter& crypt, const std::vector<unsigned char>& vchPlaintextIn, \ static void TestEncrypt(const CCrypter& crypt, const std::vector<unsigned char>& vchPlaintextIn, \