Function cryptographic_primitives::feistel_network_encrypt

pub fn feistel_network_encrypt(
    input: &[u8],
    key: &u128,
    rounds: u32
) -> Result<Vec<u8>, &'static str>

Encrypts an array of bytes using the feistel cipher

Arguments

• input - The array of bytes to encrypt
• key - The key to use for encryption
• rounds - The number of rounds to use for encryption

Example

 use cryptographic_primitives::feistel_network_encrypt;
 
let plaintext = b"Hello, world!";
let ciphertext = feistel_network_encrypt(plaintext, &15, 5).unwrap();
 
assert_eq!(ciphertext, vec![20, 214, 205, 97, 45, 140, 194, 245, 186, 32, 98, 214, 120, 45]);
 

Errors

• Input must not be empty - If the input array is empty
• Number of rounds must be greater than 0 - If the number of rounds is less than 1
• HMAC creation failed - If there is an error in creating the HMAC for the round function or the Key Derivation Function