Function generate_challenge 

pub fn generate_challenge() -> Vec<u8> 

Generate random challenge bytes for authentication

Generates 32 bytes of cryptographically secure random data using rand::rngs::OsRng for use in challenge-response authentication protocols. The challenge serves as a nonce to prevent replay attacks during handshakes.

Security

Uses OsRng which provides the highest quality randomness available on the platform by interfacing directly with the operating system’s random number generator (e.g., /dev/urandom on Unix systems, CryptGenRandom on Windows).

Example

use eidetica::auth::crypto::generate_challenge;

let challenge = generate_challenge();
assert_eq!(challenge.len(), 32);