gistfile1.js

/*

Typically supported by OpenSSL:
    RSA-MD4 => MD4
    RSA-MD5 => MD5
    RSA-RIPEMD160 => RIPEMD160
    RSA-SHA => SHA
    RSA-SHA1 => SHA1
    RSA-SHA1-2 => RSA-SHA1
    RSA-SHA224 => SHA224
    RSA-SHA256 => SHA256
    RSA-SHA384 => SHA384
    RSA-SHA512 => SHA512

*/

var crypto = require('crypto');

var hash = crypto.createHash('RSA-SHA512');
hash.update('testing');
console.log(hash.digest('hex'));