Java

2-Key Triple DES (112 bits)

See more Encryption Examples

Demonstrates 2-Key Triple DES encryption (112-bit 3DES encryption). Chilkat2 Java

import com.chilkatsoft.chilkat2.Crypt2;

public class ChilkatExample {

    public static void main(String[] args) {
        // This example requires the Chilkat API to have been previously unlocked.
        // See Global Unlock Sample for sample code.

        Crypt2 crypt = new Crypt2();

        // Specify 3DES for the encryption algorithm:
        crypt.setCryptAlgorithm("3des");

        crypt.setCipherMode("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.setKeyLength(128);

        // Pad with zeros
        crypt.setPaddingScheme(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.setEncodingMode("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.setHashAlgorithm("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");
        System.out.println(encStr);

        // Now decrypt:
        String decStr = crypt.decryptStringENC(encStr);
        System.out.println(decStr);
    }
}