Function constant_time_eq 

pub fn constant_time_eq(a: &[u8], b: &[u8]) -> bool

Constant-time comparison of two byte slices to prevent timing attacks. Returns true if slices are equal, false otherwise. This is critical for comparing signatures, hashes, and nonces securely.

Examples

use chie_shared::constant_time_eq;

// Comparing equal slices
let signature1 = b"valid_signature_data";
let signature2 = b"valid_signature_data";
assert!(constant_time_eq(signature1, signature2));

// Comparing different slices
let sig_a = b"signature_a";
let sig_b = b"signature_b";
assert!(!constant_time_eq(sig_a, sig_b));

// Different lengths always return false
assert!(!constant_time_eq(b"short", b"longer_text"));