JHash.js

A JavaScript hash generator.

• MD5
• SHA-1
• SHA-256
• SHA-512
• RIPEMD-160

Common Usage

<script src="https://cdn.jsdelivr.net/npm/jhash.js@latest/jhash.min.js"></script>
<script>
    var md5 = JHash.hex_md5("string");
    var md5_hmac = JHash.hex_hmac_md5("key", "data");

    var sha1_hash = JHash.hex_sha1("string");
    var sha1_hmac = JHash.hex_hmac_sha1("key", "data");

    var sha256_hash = JHash.hex_sha256("string");
    var sha256_hmac = JHash.hex_hmac_sha256("key", "data");

    var sha512_hash = JHash.hex_sha512("string");
    var sha512_hmac = JHash.hex_hmac_sha512("key", "data");

    var rmd160_hash = JHash.hex_rmd160("string");
    var rmd160_hmac = JHash.hex_hmac_rmd160("key", "data");
</script>

Other Output Encodings

The scripts support base64 encoding. Use it like this:

var md5 = JHash.b64_md5("string");
var md5_hmac = JHash.b64_hmac_md5("key", "data");

var sha1_hash = JHash.b64_sha1("string");
var sha1_hmac = JHash.b64_hmac_sha1("key", "data");

var sha256_hash = JHash.b64_sha256("string");
var sha256_hmac = JHash.b64_hmac_sha256("key", "data");

var sha512_hash = JHash.b64_sha512("string");
var sha512_hmac = JHash.b64_hmac_sha512("key", "data");

var rmd160_hash = JHash.b64_rmd160("string");
var rmd160_hmac = JHash.b64_hmac_rmd160("key", "data");

There is also a mode called "any output encoding". This lets you specify a string of characters, and all those characters will be used to encode the password. The string can be any length - it does not need to be a power of 2. This is useful for applications like password generation, when you want to get as much unpredictability as possible into a short password. Use it like this:

var md5 = JHash.any_md5("string");
var md5_hmac = JHash.any_hmac_md5("key", "data");

var sha1_hash = JHash.any_sha1("string");
var sha1_hmac = JHash.any_hmac_sha1("key", "data");

var sha256_hash = JHash.any_sha256("string");
var sha256_hmac = JHash.any_hmac_sha256("key", "data");

var sha512_hash = JHash.any_sha512("string");
var sha512_hmac = JHash.any_hmac_sha512("key", "data");

var rmd160_hash = JHash.any_rmd160("string");
var rmd160_hmac = JHash.any_hmac_rmd160("key", "data");

If the encoding is 0123456789ABCDEF the output will be identical to hex_md5. It isn't possible to create output that's identical to base64 encoding.

Advanced Usage

If you want to use more advanced features, such as multiple repetitions of a hash, or utf-16 encoding, you need to use a slightly lower-level interface to the scripts. These have the concept of a "raw string"; this is a JavaScript string, but all the characters are between 0 and 255 - essentially a binary array. To get a hex hash, using utf-16 encoding:

var hash = JHash.rstr2hex(JHash.rstr_md5(JHash.str2rstr_utf16le("string")));

You can also use JHash.str2rstr_utf16be. To perform a double hash:

var hash = JHash.rstr2hex(JHash.rstr_md5(JHash.rstr_md5(JHash.str2rstr_utf8("string"))));

You can use variants of this to produce just about any hash you may need.

Unit Tests

To run the unit tests, you will need Python 2 or newer. The script test.py generates an HTML file that runs the tests:

python test.py > test.html

Next, open test.html in a browser to run the tests, and see the results.