(JavaScript) Hash File: SHA-1, HAVAL, MD2, MD5, SHA-256, SHA-384, SHA-512

Computing the hash for a file of any size.

Note

This example is intended for running within a Chilkat.Js embedded JavaScript engine. All Chilkat JavaScript examples require Chilkat v11.4.0 or greater.

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

var crypt = new CkCrypt2();

// Any type of file may be hashed.
// There is  no size limitation because the file is consumed
// in streaming mode internally.
var filename;
filename = "something.zip";

crypt.HashAlgorithm = "sha1";
crypt.EncodingMode = "hex";

// Other possible EncodingMode settings are: 
// "quoted-printable", "base64", "base32", and "url"

var hash = crypt.HashFileENC(filename);
console.log("SHA1:");
console.log(hash);

// Hash using MD2
crypt.HashAlgorithm = "md2";
hash = crypt.HashFileENC(filename);
console.log("MD2:");
console.log(hash);

// Hash using MD5
crypt.HashAlgorithm = "md5";
hash = crypt.HashFileENC(filename);
console.log("MD5:");
console.log(hash);

// Hash using SHA-256
crypt.HashAlgorithm = "sha256";
hash = crypt.HashFileENC(filename);
console.log("SHA256:");
console.log(hash);

// Hash using SHA-384
crypt.HashAlgorithm = "sha384";
hash = crypt.HashFileENC(filename);
console.log("SHA384:");
console.log(hash);

// Hash using SHA-512
crypt.HashAlgorithm = "sha512";
hash = crypt.HashFileENC(filename);
console.log("SHA512:");
console.log(hash);

// Hash using HAVAL
// There are two additional properties relevant to HAVAL:
// HavalRounds, and KeyLength.
// HavalRounds can have values of 3, 4, or 5.
// KeyLength can have values of 128, 160, 192, 224, or 256
crypt.HashAlgorithm = "haval";
crypt.HavalRounds = 5;
crypt.KeyLength = 256;
hash = crypt.HashFileENC(filename);
console.log("Haval:");
console.log(hash);