public void TestBlowfish()
{
// arrange
using (var csp = new BlowfishCryptoProvider())
{
var random = new Random(42);
var keySizes = csp.ValidKeySizes;
foreach (var sz in keySizes)
{
csp.KeySize = sz;
var key = new byte[sz / 8];
GenerateKey(key);
var data = new byte[(int)(sz / 8 * 1.5)];
random.NextBytes(data);
var msSrc = new MemoryStream();
var mswSrc = msSrc.AsUnclosable();
var msDst = new MemoryStream();
var mswDst = msDst.AsUnclosable();
mswSrc.Write(data, 0, data.Length);
mswSrc.Position = 0;
// act
csp.Key = key;
csp.Encrypt(mswDst, mswSrc, (int)mswSrc.Length);
mswSrc.Position = 0;
mswDst.Position = 0;
csp.Decrypt(mswSrc, mswDst, (int)mswDst.Length);
var decryptedData = msSrc.GetBuffer();
// assert
for (int i = 0; i < msSrc.Length; i++)
{
Assert.AreEqual(data[i], decryptedData[i]);
}
}
}
}
public void TestBlowfishDefaultKey()
{
// arrange
using (var csp = new BlowfishCryptoProvider())
{
var random = new Random(42);
var data = new byte[(int)(csp.KeySize * 1.5)];
random.NextBytes(data);
var msSrc = new MemoryStream();
var mswSrc = msSrc.AsUnclosable();
var msDst = new MemoryStream();
var mswDst = msDst.AsUnclosable();
mswSrc.Write(data, 0, data.Length);
mswSrc.Position = 0;
// act
csp.Encrypt(mswDst, mswSrc, (int)mswSrc.Length);
mswSrc.Position = 0;
mswDst.Position = 0;
csp.Decrypt(mswSrc, mswDst, (int)mswDst.Length);
var decryptedData = msSrc.GetBuffer();
// assert
for (int i = 0; i < msSrc.Length; i++)
{
Assert.AreEqual(data[i], decryptedData[i]);
}
}
}
