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(Python) Twofish Encryption - 128-bit, 192-bit, 256-bitTwofish encryption. The Chilkat encryption component supports 128-bit, 192-bit, and 256-bit Twofish encryption in both ECB (Electronic Cookbook) and CBC (Cipher-Block Chaining) modes.
import sys import chilkat crypt = chilkat.CkCrypt2() success = crypt.UnlockComponent("Anything for 30-day trial") if (success != True): print(crypt.lastErrorText()) sys.exit() # Set the encryption algorithm = "twofish" crypt.put_CryptAlgorithm("twofish") # CipherMode may be "ecb" or "cbc" crypt.put_CipherMode("cbc") # KeyLength may be 128, 192, 256 crypt.put_KeyLength(256) # The padding scheme determines the contents of the bytes # that are added to pad the result to a multiple of the # encryption algorithm's block size. Twofish has a block # size of 16 bytes, so encrypted output is always # a multiple of 16. crypt.put_PaddingScheme(0) # EncodingMode specifies the encoding of the output for # encryption, and the input for decryption. # It may be "hex", "url", "base64", or "quoted-printable". crypt.put_EncodingMode("hex") # An initialization vector is required if using CBC mode. # ECB mode does not use an IV. # The length of the IV is equal to the algorithm's block size. # It is NOT equal to the length of the key. 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. # For 128-bit encryption, the binary secret key is 16 bytes. keyHex = "000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F" crypt.SetEncodedKey(keyHex,"hex") # Encrypt a string... # The input string is 44 ANSI characters (i.e. 44 bytes), so # the output should be 48 bytes (a multiple of 16). # Because the output is a hex string, it should # be 96 characters long (2 chars per byte). encStr = crypt.encryptStringENC("The quick brown fox jumps over the lazy dog.") print(encStr) # Now decrypt: decStr = crypt.decryptStringENC(encStr) print(decStr) |
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