@skhemata/skhemata-form/src/validator/lib/isHash.js

Skhemata Form Web Component. This web component can be used as base web component when working with forms and inputs.

import assertString from './util/assertString';

const lengths = {
  md5: 32,
  md4: 32,
  sha1: 40,
  sha256: 64,
  sha384: 96,
  sha512: 128,
  ripemd128: 32,
  ripemd160: 40,
  tiger128: 32,
  tiger160: 40,
  tiger192: 48,
  crc32: 8,
  crc32b: 8,
};

export default function isHash(str, algorithm) {
  assertString(str);
  const hash = new RegExp(`^[a-fA-F0-9]{${lengths[algorithm]}}$`);
  return hash.test(str);
}