Dart

Password_Digest = Base64 (SHA-1 ( nonce + created + SHA-1 (password) ) )

See more Encryption Examples

Demonstrates how to compute:

Password_Digest = Base64 (SHA-1 ( nonce + created + SHA-1 (password)))

Dart

import 'package:chilkat/chilkat.dart';

void main() {
  // This example requires the Chilkat API to have been previously unlocked.
  // See Global Unlock Sample for sample code.

  final password = 'secret';

  final crypt = CkCrypt2();
  crypt.hashAlgorithm = 'SHA-1';
  crypt.encodingMode = 'base64';

  // Generate a 16-byte random nonce
  final prng = CkPrng();
  final bd = CkBinData();
  prng.genRandomBd(16, bd);

  // Get the current date/time in a string with this format: 2010-06-08T07:26:50Z
  final dt = CkDateTime();
  dt.setFromCurrentSystemTime();
  final created = dt.getAsTimestamp(false);
  bd.appendString(created, 'utf-8');

  // This example wishes to calculate a password digest like this:
  // Password_Digest = Base64 ( SHA-1 ( nonce + created + SHA-1(password) ) )

  // First SHA-1 digest the password...
  final passwordSha1 = crypt.hashStringENC(password);
  // Append the 20 binary bytes of the SHA1 hash to bd, which already contains the nonce and created date/time.
  bd.appendEncoded(passwordSha1, 'base64');

  final passwordDigest = crypt.hashBdENC(bd);

  print('Base64 password digest = $passwordDigest');
}