(function() {
   this.SrPago._PUBLIC_KEY = "-----BEGIN PUBLIC KEY-----\
              MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAv0utLFjwHQk+1aLjxl9t\
              Ojvt/qFD1HfMFzjYa4d3iFKrQtvxaWM/B/6ltPn6+Pez+dOd59zFmzNHg33h8S0p\
              aZ6wmNv3mwp4hCJttGzFvl2hhw8Z+OU9KwGSXgQ+5FNyRyDLp0qt75ayvV0vV8oX\
              0Pgubd/NTHzRKk0ubXO8WVWkNhMdsv0HGrhIMDXAWLAQBzDewmICVH9MIJzjoZym\
              R7AuNpefD4hoVK8cBMjZ0xRKSPyd3zI6uJyERcR3+N9nxvg4guShP27cnD9qpLt4\
              L6YtU0BU+husFXoHL6Y2CsxyzxT9mtorAGe5oRiTC7Z/S9u7pxGN4iozgmAei0MZ\
              VbKows/qa9/q0PPzbF/PHSZKou1DJvsJ2PKY3ZPYAT7/u4x8NRiJ/6cssuzsIPUd\
              Q9HBzA1ZBMHkpOmkipu1G7ks/GwTfQJkHPW5xHu1EOYvgv/PHr3BJnCMNYKFvf5c\
              4Qd0COnnU3jDel1OKl7lUzr+ioqUedX393D/fszdK4hjvtUjo6ThTRNm3y4avY/r\
              m+oLu8sZWpyBm4PfN2xGOnFco9SiyCT03XOEuOXokid6BDMi0aue9LKJaQR+KGVc\
              /H2p2d2Yu4GdgXS1vq1syaf7V0QPOmamTOyJRZ45UoLfBRB8nYBGDo0mPR7GIon6\
              M8SmGGsTo3V0L+Ni9bNJHa8CAwEAAQ==\
        -----END PUBLIC KEY-----";

    this.SrPago.encryption = (function() {
        function encryption() {}

        encryption.encrypt = function(plainData) {
            if ((typeof plainData) !== "string") {
                plainData = JSON.stringify(plainData);
            }

            var publicKey = SrPago._PUBLIC_KEY;

            var plainKey = encryption.random(56, '#aA').substr(0, 32);
            var numberFill = 16 - (plainData.length % 16);
            while (numberFill > 0) {
                numberFill--;
                plainData += ' ';
            }
            var key = aesjs.util.convertStringToBytes(plainKey);
            var plainBytes = aesjs.util.convertStringToBytes(plainData);
            var aesEcb = new aesjs.ModeOfOperation.ecb(key);
            var encryptedBytes = aesEcb.encrypt(plainBytes);
            var dataBase64 = btoa(String.fromCharCode.apply(null, new Uint8Array(encryptedBytes)));

            var encrypt = new JSEncrypt();
            encrypt.setPublicKey(publicKey);
            var encryptedKey = encrypt.encrypt(plainKey);

            return {
                key: "" + encryptedKey,
                data: "" + dataBase64
            }
        };

        encryption.random = function(length, chars) {
            var mask = '';
            if (chars.indexOf('a') > -1) mask += 'abcdefghijklmnopqrstuvwxyz';
            if (chars.indexOf('A') > -1) mask += 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
            if (chars.indexOf('#') > -1) mask += '0123456789';
            if (chars.indexOf('!') > -1) mask += '~`!@#$%^&*()_+-={}[]:";\'<>?,./|\\';
            var result = '';
            for (var i = length; i > 0; --i) result += mask[Math.floor(Math.random() * mask.length)];
            return result;
        };

        return encryption;
    })();
}).call(this);