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(Java) Twofish OFB Output Feedback Mode EncryptionDemonstrates how to encrypt using Twofish OFB (Output Feedback) mode.
import com.chilkatsoft.*; public class ChilkatExample { static { try { System.loadLibrary("chilkat"); } catch (UnsatisfiedLinkError e) { System.err.println("Native code library failed to load.\n" + e); System.exit(1); } } public static void main(String argv[]) { // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. CkCrypt2 crypt = new CkCrypt2(); crypt.put_CryptAlgorithm("twofish"); // Set the cipher mode to Output Feedback crypt.put_CipherMode("ofb"); crypt.put_KeyLength(256); // EncodingMode specifies the encoding of the output for // encryption, and the input for decryption. // It may be "hex", "url", "base64", "quoted-printable", or many other choices. crypt.put_EncodingMode("hex"); String ivHex = "000102030405060708090A0B0C0D0E0F"; crypt.SetEncodedIV(ivHex,"hex"); // The secret key must equal the size of the key. For // 256-bit encryption, the binary secret key is 32 bytes. String keyHex = "603deb1015ca71be2b73aef0857d77811f352c073b6108d72d9810a30914dff4"; crypt.SetEncodedKey(keyHex,"hex"); // Encrypt a string... String encStr = crypt.encryptStringENC("Without music to decorate it, time is just a bunch of boring production deadlines or dates by which bills must be paid. -- Frank Zappa"); System.out.println(encStr); CkCrypt2 decrypt = new CkCrypt2(); decrypt.put_CryptAlgorithm("twofish"); decrypt.put_CipherMode("ofb"); decrypt.put_KeyLength(256); decrypt.put_EncodingMode("hex"); decrypt.SetEncodedIV(ivHex,"hex"); decrypt.SetEncodedKey(keyHex,"hex"); // Now decrypt: String decStr = decrypt.decryptStringENC(encStr); System.out.println(decStr); } } |
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