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aes ctr mode test

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subtly 2014-10-22 15:57:52 +02:00
parent 7ca7fd97ab
commit 9a5a6db634
1 changed files with 73 additions and 0 deletions
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73
crypto.cpp
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@ -62,6 +62,11 @@ BOOST_AUTO_TEST_CASE(ecdhe_aes128_ctr_sha3mac)
// Every new connection requires a new EC keypair
// Every new trust requires a new EC keypair
// All connections should share seed for PRF (or PRNG) for nonces
}
BOOST_AUTO_TEST_CASE(cryptopp_ecies_message)
@ -149,6 +154,74 @@ BOOST_AUTO_TEST_CASE(cryptopp_ecdh_prime)
assert(ssLocal == ssRemote);
}
BOOST_AUTO_TEST_CASE(cryptopp_aes128_ctr)
{
const int aesKeyLen = 16;
assert(sizeof(char) == sizeof(byte));
// generate test key
AutoSeededRandomPool rng;
SecByteBlock key(0x00, aesKeyLen);
rng.GenerateBlock(key, key.size());
// cryptopp uses IV as nonce/counter which is same as using nonce w/0 ctr
byte ctr[ AES::BLOCKSIZE ];
rng.GenerateBlock( ctr, sizeof(ctr) );
string text = "Now is the time for all good men to come to the aide of humanity.";
// c++11 ftw
unsigned char const* in = (unsigned char*)&text[0];
unsigned char* out = (unsigned char*)&text[0];
string original = text;
string cipherCopy;
try
{
CTR_Mode< AES >::Encryption e;
e.SetKeyWithIV( key, key.size(), ctr );
e.ProcessData(out, in, text.size());
assert(text!=original);
cipherCopy = text;
}
catch( CryptoPP::Exception& e )
{
cerr << e.what() << endl;
}
try
{
CTR_Mode< AES >::Decryption d;
d.SetKeyWithIV( key, key.size(), ctr );
d.ProcessData(out, in, text.size());
assert(text==original);
}
catch( CryptoPP::Exception& e )
{
cerr << e.what() << endl;
}
// reencrypt ciphertext...
try
{
assert(cipherCopy!=text);
in = (unsigned char*)&cipherCopy[0];
out = (unsigned char*)&cipherCopy[0];
CTR_Mode< AES >::Encryption e;
e.SetKeyWithIV( key, key.size(), ctr );
e.ProcessData(out, in, text.size());
// yep, ctr mode.
assert(cipherCopy==original);
}
catch( CryptoPP::Exception& e )
{
cerr << e.what() << endl;
}
}
BOOST_AUTO_TEST_CASE(cryptopp_aes128_cbc)
{
const int aesKeyLen = 16;