TryCF Gist

trycf-gist.cfm

<cfscript>
function genToken(numeric numOfbytes=32)
{
  var hex = "";

  for (var byte = 0; byte < numOfbytes; byte++)
  {
    var randomByte = RandRange(0, 255, 'SHA1PRNG');
    var randomHex = FormatBaseN(randomByte,16);

    hex &= len(randomHex) == 1 ? 0 & randomHex : randomHex;
  }
  var binary = binaryDecode(hex, 'hex');
  var base64 = toBase64(binary);
  var base64url = replaceList(base64, "+,/,=", "-,_,");
  
  return base64url;
}

for ( i = 1 ; i <= 25 ; i++)
  writeOutput("#i#: " & genToken() & "<br>");
</cfscript>