Function verify 

pub fn verify(
    data: &str,
    signature: &str,
    public_key_str: &str,
    encoding: &str,
) -> Result<bool>

High-level RSA signature verification function for CLI use.

This function takes a message, signature, and public key, then verifies the digital signature using RSA with PKCS#1 v1.5 padding scheme.

Arguments

• data - The original message that was signed
• signature - The digital signature (in specified encoding)
• public_key_str - Public key in “n:e” format or PEM format
• encoding - Input encoding: “base64” or “hex”

Returns

Returns true if the signature is valid, false otherwise.

Examples

use ruscrypt::asym::rsa;

let message = "Hello, World!";
let signature = "..."; // Base64 signature
let public_key = "12345:65537"; // n:e format
let is_valid = rsa::verify(message, signature, public_key, "base64").unwrap();