Function decrypt_bytes 

pub fn decrypt_bytes<S: AsRef<str>>(
    encoded: S,
) -> Result<Zeroizing<Vec<u8>>, CryptoError>

Decrypt an encoded ciphertext string into raw bytes.

Accepts either:

• v1:nonce_b64:ciphertext_b64 (current)
• nonce_b64:ciphertext_b64 (legacy)

Key behavior

This function does not auto-initialize the key. If the key is missing, it returns CryptoError::KeyNotSet.

Example

use keycrypt::{encrypt_bytes, decrypt_bytes};

let enc = encrypt_bytes(b"hello")?;
let dec = decrypt_bytes(&enc)?;
assert_eq!(dec.as_slice(), b"hello");

Errors

• CryptoError::InvalidFormat if the input format is wrong.
• CryptoError::InvalidNonce if nonce length is not 12 bytes.
• CryptoError::KeyNotSet if the key does not exist.
• CryptoError::DecryptionFailed if authentication fails (wrong key/tampering/AAD mismatch).