Rust

Blowfish Encryption, ECB, CBC, CFB modes

See more Encryption Examples

Blowfish encryption. The Chilkat encryption component supports Blowfish key sizes ranging from 32-bits to 448-bits. Chilkat's blowfish implementation supports ECB (Electronic Cookbook) , CBC (Cipher-Block Chaining), and CFB (Cipher Feedback) modes. Rust

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

let crypt = chilkat::Crypt2::new();

// Attention: use "blowfish2" for the algorithm name:
crypt.set_crypt_algorithm("blowfish2");

// CipherMode may be "ecb", "cbc", or "cfb"
crypt.set_cipher_mode("cbc");

// KeyLength (in bits) may be a number between 32 and 448.
// 128-bits is usually sufficient.  The KeyLength must be a 
// multiple of 8.
crypt.set_key_length(128);

// 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.  Blowfish has a block
// size of 8 bytes, so encrypted output is always
// a multiple of 8.
crypt.set_padding_scheme(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.set_encoding_mode("hex");

// An initialization vector is required if using CBC or CFB modes.
// 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.
let iv_hex = "0001020304050607".to_string();
crypt.set_encoded_iv(&iv_hex, "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.
let key_hex = "000102030405060708090A0B0C0D0E0F".to_string();
crypt.set_encoded_key(&key_hex, "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 8).
// Because the output is a hex string, it should
// be 96 characters long (2 chars per byte).
let enc_str = crypt.encrypt_string_enc("The quick brown fox jumps over the lazy dog.").unwrap_or_default();
println!("{}", enc_str);

// Now decrypt:
let dec_str = crypt.decrypt_string_enc(&enc_str).unwrap_or_default();
println!("{}", dec_str);