public NistKnownAnswerTestVector(NistKnownAnswerTestOperation operation, CipherMode cipherMode, int count,
byte[] key, byte[] iv, int bitLength, byte[] plaintext, byte[] ciphertext)
{
Operation = operation;
CipherMode = cipherMode;
Count = count;
Key = key;
IV = iv;
BitLength = bitLength;
Plaintext = plaintext;
Ciphertext = ciphertext;
}
private static NistKnownAnswerTestVector ReadVector(NistKnownAnswerTestOperation operation,
CipherMode cipherMode, string firstLine, StreamReader reader)
{
string[] countInfo = ParseNameValuePair(firstLine);
if (!"COUNT".Equals(countInfo[0], StringComparison.OrdinalIgnoreCase))
{
throw new InvalidDataException("Expected COUNT as first item");
}
int count = Int32.Parse(countInfo[1], CultureInfo.InvariantCulture);
string name;
byte[] bytes;
int bitLength;
ParseNamedBytes(reader.ReadLine(), out name, out bytes, out bitLength);
if (!"KEY".Equals(name, StringComparison.OrdinalIgnoreCase))
{
throw new InvalidDataException("Expected KEY");
}
byte[] key = bytes;
ParseNamedBytes(reader.ReadLine(), out name, out bytes, out bitLength);
byte[] iv = null;
// IV is optional since ECB doesn't need it
if ("IV".Equals(name, StringComparison.OrdinalIgnoreCase))
{
iv = bytes;
ParseNamedBytes(reader.ReadLine(), out name, out bytes, out bitLength);
}
byte[] plaintext;
byte[] ciphertext;
if (operation == NistKnownAnswerTestOperation.Encrypt)
{
if (!"PLAINTEXT".Equals(name, StringComparison.OrdinalIgnoreCase))
{
throw new InvalidDataException("Expected PLAINTEXT");
}
plaintext = bytes;
ParseNamedBytes(reader.ReadLine(), out name, out bytes, out bitLength);
if (!"CIPHERTEXT".Equals(name, StringComparison.OrdinalIgnoreCase))
{
throw new InvalidDataException("Expected CIPHERTEXT");
}
ciphertext = bytes;
}
else
{
if (!"CIPHERTEXT".Equals(name, StringComparison.OrdinalIgnoreCase))
{
throw new InvalidDataException("Expected CIPHERTEXT");
}
ciphertext = bytes;
ParseNamedBytes(reader.ReadLine(), out name, out bytes, out bitLength);
if (!"PLAINTEXT".Equals(name, StringComparison.OrdinalIgnoreCase))
{
throw new InvalidDataException("Expected PLAINTEXT");
}
plaintext = bytes;
}
return new NistKnownAnswerTestVector(operation, cipherMode, count, key, iv, bitLength, plaintext, ciphertext);
}
public NistKnownAnswerTestVector(NistKnownAnswerTestOperation operation, CipherMode cipherMode, int count,
byte[] key, byte[] iv, int bitLength, byte[] plaintext, byte[] ciphertext)
{
Operation = operation;
CipherMode = cipherMode;
Count = count;
Key = key;
IV = iv;
BitLength = bitLength;
Plaintext = plaintext;
Ciphertext = ciphertext;
}
private static NistKnownAnswerTestVector ReadVector(NistKnownAnswerTestOperation operation,
CipherMode cipherMode, string firstLine, StreamReader reader)
{
string[] countInfo = ParseNameValuePair(firstLine);
if (!"COUNT".Equals(countInfo[0], StringComparison.OrdinalIgnoreCase))
{
throw new InvalidDataException("Expected COUNT as first item");
}
int count = Int32.Parse(countInfo[1], CultureInfo.InvariantCulture);
string name;
byte[] bytes;
int bitLength;
ParseNamedBytes(reader.ReadLine(), out name, out bytes, out bitLength);
if (!"KEY".Equals(name, StringComparison.OrdinalIgnoreCase))
{
throw new InvalidDataException("Expected KEY");
}
byte[] key = bytes;
ParseNamedBytes(reader.ReadLine(), out name, out bytes, out bitLength);
byte[] iv = null;
// IV is optional since ECB doesn't need it
if ("IV".Equals(name, StringComparison.OrdinalIgnoreCase))
{
iv = bytes;
ParseNamedBytes(reader.ReadLine(), out name, out bytes, out bitLength);
}
byte[] plaintext;
byte[] ciphertext;
if (operation == NistKnownAnswerTestOperation.Encrypt)
{
if (!"PLAINTEXT".Equals(name, StringComparison.OrdinalIgnoreCase))
{
throw new InvalidDataException("Expected PLAINTEXT");
}
plaintext = bytes;
ParseNamedBytes(reader.ReadLine(), out name, out bytes, out bitLength);
if (!"CIPHERTEXT".Equals(name, StringComparison.OrdinalIgnoreCase))
{
throw new InvalidDataException("Expected CIPHERTEXT");
}
ciphertext = bytes;
}
else
{
if (!"CIPHERTEXT".Equals(name, StringComparison.OrdinalIgnoreCase))
{
throw new InvalidDataException("Expected CIPHERTEXT");
}
ciphertext = bytes;
ParseNamedBytes(reader.ReadLine(), out name, out bytes, out bitLength);
if (!"PLAINTEXT".Equals(name, StringComparison.OrdinalIgnoreCase))
{
throw new InvalidDataException("Expected PLAINTEXT");
}
plaintext = bytes;
}
return(new NistKnownAnswerTestVector(operation, cipherMode, count, key, iv, bitLength, plaintext, ciphertext));
}
