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(C# UWP/WinRT) 2-Key Triple DES (112 bits)

Demonstrates 2-Key Triple DES encryption (112-bit 3DES encryption).

Chilkat Universal Windows Platform (UWP) / WinRT Downloads

Chilkat for the Universal Windows Platform (UWP)

Chilkat.Crypt2 crypt = new Chilkat.Crypt2();

bool success = crypt.UnlockComponent("Anything for 30-day trial.");
if (success != true) {
    Debug.WriteLine(crypt.LastErrorText);
    return;
}

//  Specify 3DES for the encryption algorithm:
crypt.CryptAlgorithm = "3des";

crypt.CipherMode = "ecb";

//  For 2-Key Triple-DES, use a key length of 128
//  (Given that each byte's msb is a parity bit, the strength is really 112 bits).
crypt.KeyLength = 128;

//  Pad with zeros
crypt.PaddingScheme = 3;

//  EncodingMode specifies the encoding of the output for
//  encryption, and the input for decryption.
//  It may be "hex", "url", "base64", or "quoted-printable".
crypt.EncodingMode = "hex";

//  Let's create a secret key by using the MD5 hash of a password.
//  The Digest-MD5 algorithm produces a 16-byte hash (i.e. 128 bits)
crypt.HashAlgorithm = "md5";
string keyHex = crypt.HashStringENC("secretPassword");

//  Set the encryption key:
crypt.SetEncodedKey(keyHex,"hex");

//  Encrypt
string encStr = crypt.EncryptStringENC("The quick brown fox jumped over the lazy dog");
Debug.WriteLine(encStr);

//  Now decrypt:
string decStr = crypt.DecryptStringENC(encStr);
Debug.WriteLine(decStr);

 

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