(Go) 2-Key Triple DES (112 bits)

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

Chilkat Go Downloads Go Package for Windows, MacOS, Linux, Alpine Linux, Solaris

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    crypt := chilkat.NewCrypt2()

    // 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")
    keyHex := crypt.HashStringENC("secretPassword")

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

    // Encrypt
    encStr := crypt.EncryptStringENC("The quick brown fox jumped over the lazy dog")
    fmt.Println(*encStr)

    // Now decrypt:
    decStr := crypt.DecryptStringENC(*encStr)
    fmt.Println(*decStr)

    crypt.DisposeCrypt2()