Method FirstPut

src/cryptopp/default.cpp:96–125

template <class BC, class H, class Info>
void DataEncryptor<BC,H,Info>::FirstPut(const byte *)
{
	SecByteBlock salt(DIGESTSIZE), keyCheck(DIGESTSIZE);
	H hash;

	// use hash(passphrase | time | clock) as salt
	hash.Update(m_passphrase, m_passphrase.size());
	time_t t=time(0);
	hash.Update((byte *)&t, sizeof(t));
	clock_t c=clock();
	hash.Update((byte *)&c, sizeof(c));
	hash.Final(salt);

	// use hash(passphrase | salt) as key check
	hash.Update(m_passphrase, m_passphrase.size());
	hash.Update(salt, SALTLENGTH);
	hash.Final(keyCheck);

	AttachedTransformation()->Put(salt, SALTLENGTH);

	// mash passphrase and salt together into key and IV
	SecByteBlock key(KEYLENGTH);
	SecByteBlock IV(BLOCKSIZE);
	GenerateKeyIV<BC,H,Info>(m_passphrase, m_passphrase.size(), salt, SALTLENGTH, ITERATIONS, key, IV);

	m_cipher.SetKeyWithIV(key, key.size(), IV);
	SetFilter(new StreamTransformationFilter(m_cipher));

	m_filter->Put(keyCheck, BLOCKSIZE);
}

template <class BC, class H, class Info>
void DataEncryptor<BC,H,Info>::LastPut(const byte *inString, size_t length)