Validate Public Key #ed25519

validate_public_key_noble.ts

import * as nobleEd25519 from '@noble/ed25519';

/**
 * Checks if the public key is a point on the Ed25519 curve
 */
function validatePublicKey(publicKey: Buffer): boolean {
  try {
    nobleEd25519.Point.fromHex(publicKey);
    return true;
  } catch {
    // If there's an error, it is an invalid public key
    return false;
  }
}

validate_public_key_sodium.ts

import sodium from 'sodium-native';

/**
 * Checks if the public key is a point on the Ed25519 curve
 */
function validatePublicKey(publicKey: Buffer): boolean {
  return sodium.crypto_core_ed25519_is_valid_point(publicKey);
}