blocktrail / blocktrail-sdk-nodejs

    var blocks = Math.ceil( length / this.hmac.HMAC_SIZE );

    for ( var i = 1; i <= blocks; ++i ) {

        var j = ( i - 1 ) * this.hmac.HMAC_SIZE;

        var l = ( i < blocks ? 0 : length % this.hmac.HMAC_SIZE ) || this.hmac.HMAC_SIZE;

        var tmp = new Uint8Array( this.hmac.reset().process(salt).process( new Uint8Array([ i>>>24&0xff, i>>>16&0xff, i>>>8&0xff, i&0xff ]) ).finish().result );

        this.result.set( tmp.subarray( 0, l ), j );

        for ( var k = 1; k < count; ++k ) {

            tmp = new Uint8Array( this.hmac.reset().process(tmp).finish().result );

            for ( var r = 0; r < l; ++r ) this.result[j+r] ^= tmp[r];

        }

    }

    return this;

}

        if (null !== this.result) throw new r("state must be reset before processing new data");

        if (!e && !a(e)) throw new s("bad 'salt' value");

        t = t || this.count, c = c || this.length, this.result = new Uint8Array(c);

        for (var i = Math.ceil(c / this.hmac.HMAC_SIZE), n = 1; n <= i; ++n) {

            var h = (n - 1) * this.hmac.HMAC_SIZE, f = (n < i ? 0 : c % this.hmac.HMAC_SIZE) || this.hmac.HMAC_SIZE, x = new Uint8Array(this.hmac.reset().process(e).process(new Uint8Array([ n >>> 24 & 255, n >>> 16 & 255, n >>> 8 & 255, 255 & n ])).finish().result);

            this.result.set(x.subarray(0, f), h);

            for (var o = 1; o < t; ++o) {

                x = new Uint8Array(this.hmac.reset().process(x).finish().result);

                for (var u = 0; u < f; ++u) this.result[h + u] ^= x[u];

            }

        }

        return this;

    };

    var C = y.prototype;