/// <summary>To execute a selftest.</summary>
/// <remarks>Call this method to make sure that the implemenation is able to produce
/// valid output according to the specification. This should usually be done at process
/// startup time, before the usage of this class and its inherited variants.</remarks>
/// <returns>True if the selftest passed or false is it failed. In such a case you must
/// not use the cipher to avoid data corruption!</returns>
public static bool RunSelfTest()
{
uint hi = TEST_VECTOR_PLAIN[0];
uint lo = TEST_VECTOR_PLAIN[1];
BlowfishECB bfe = new BlowfishECB(TEST_KEY, 0, TEST_KEY.Length);
bfe.EncryptBlock(hi, lo, out hi, out lo);
if ((TEST_VECTOR_CIPHER[0] != hi) ||
(TEST_VECTOR_CIPHER[1] != lo))
{
return(false);
}
bfe.DecryptBlock(hi, lo, out hi, out lo);
if ((TEST_VECTOR_PLAIN[0] != hi) ||
(TEST_VECTOR_PLAIN[1] != lo))
{
return(false);
}
return(true);
}
private BlowfishAlgorithm(byte[] key, byte[] iv, bool useCBC, bool isEncryptor)
{
if (null == key)
{
GenerateKey();
}
else
{
Key = key;
}
if (useCBC)
{
IV = this.origIV = iv;
this.bfc = new BlowfishCBC(KeyValue, 0, KeyValue.Length);
this.bfc.SetIV(IVValue, 0);
}
else
{
this.bfe = new BlowfishECB(KeyValue, 0, KeyValue.Length);
}
this.isEncryptor = isEncryptor;
}
private BlowfishAlgorithm(byte[] key, byte[] iv, bool useCBC, bool isEncryptor)
{
if (null == key)
{
GenerateKey();
}
else
{
Key = key;
}
if (useCBC)
{
IV = this.origIV = iv;
this.bfc = new BlowfishCBC(KeyValue, 0, KeyValue.Length);
this.bfc.SetIV(IVValue, 0);
}
else
{
this.bfe = new BlowfishECB(KeyValue, 0, KeyValue.Length);
}
this.isEncryptor = isEncryptor;
}
/// <remarks>Cloning can be very useful if you need multiple instances all using
/// the same key, since the expensive cipher setup will be bypassed.</remarks>
/// <see cref="System.ICloneable.Clone()"/>
public object Clone()
{
BlowfishECB result = new BlowfishECB();
result.pbox = (uint[])this.pbox.Clone();
result.sbox1 = (uint[])this.sbox1.Clone();
result.sbox2 = (uint[])this.sbox2.Clone();
result.sbox3 = (uint[])this.sbox3.Clone();
result.sbox4 = (uint[])this.sbox4.Clone();
result.block = (byte[])this.block.Clone();
result.isWeakKey = this.isWeakKey;
return(result);
}
/// <remarks>Cloning can be very useful if you need multiple instances all using
/// the same key, since the expensive cipher setup will be bypassed.</remarks>
/// <see cref="System.ICloneable.Clone()"/>
public object Clone()
{
BlowfishECB result = new BlowfishECB();
result.pbox = (uint[]) this.pbox.Clone();
result.sbox1 = (uint[]) this.sbox1.Clone();
result.sbox2 = (uint[]) this.sbox2.Clone();
result.sbox3 = (uint[]) this.sbox3.Clone();
result.sbox4 = (uint[]) this.sbox4.Clone();
result.block = (byte[]) this.block.Clone();
result.isWeakKey = this.isWeakKey;
return result;
}
/// <summary>To execute a selftest.</summary>
/// <remarks>Call this method to make sure that the implemenation is able to produce
/// valid output according to the specification. This should usually be done at process
/// startup time, before the usage of this class and its inherited variants.</remarks>
/// <returns>True if the selftest passed or false is it failed. In such a case you must
/// not use the cipher to avoid data corruption!</returns>
public static bool RunSelfTest()
{
uint hi = TEST_VECTOR_PLAIN[0];
uint lo = TEST_VECTOR_PLAIN[1];
BlowfishECB bfe = new BlowfishECB(TEST_KEY, 0, TEST_KEY.Length);
bfe.EncryptBlock(hi, lo, out hi, out lo);
if ((TEST_VECTOR_CIPHER[0] != hi) ||
(TEST_VECTOR_CIPHER[1] != lo))
{
return false;
}
bfe.DecryptBlock(hi, lo, out hi, out lo);
if ((TEST_VECTOR_PLAIN[0] != hi) ||
(TEST_VECTOR_PLAIN[1] != lo))
{
return false;
}
return true;
}
