tweetnacl-ts/client/convert.js

Port of TweetNaCl cryptographic library to TypeScript (and ES6)

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var array_1 = require("../array");
var validate_1 = require("../validate");
var fromCharCode = String.fromCharCode;
function encodeUTF8(a) {
    return decodeURIComponent(escape(fromCharCode.apply(undefined, a)));
}
exports.encodeUTF8 = encodeUTF8;
function decodeUTF8(s) {
    if (typeof s !== 'string')
        throw new TypeError('expected string');
    var d = unescape(encodeURIComponent(s)), b = array_1.ByteArray(d.length);
    for (var i = 0; i < d.length; i++) {
        b[i] = d.charCodeAt(i);
    }
    return b;
}
exports.decodeUTF8 = decodeUTF8;
function encodeBase64(a) {
    return btoa(fromCharCode.apply(undefined, a));
}
exports.encodeBase64 = encodeBase64;
function decodeBase64(s) {
    validate_1.validateBase64(s);
    var d = atob(s), b = array_1.ByteArray(d.length);
    for (var i = 0; i < d.length; i++) {
        b[i] = d.charCodeAt(i);
    }
    return b;
}
exports.decodeBase64 = decodeBase64;
function put_hb(h) {
    return h + (h < 10 ? 48 : 87);
}
function encodeHex(a) {
    var b = array_1.ByteArray(a.length << 1);
    for (var i = 0, j = void 0; i < a.length; i++) {
        j = i << 1;
        b[j] = put_hb(a[i] >> 8);
        b[j + 1] = put_hb(a[i] & 0xf);
    }
    return fromCharCode.apply(undefined, b);
}
exports.encodeHex = encodeHex;
function get_hb(s, i) {
    var c = s.charCodeAt(i);
    return c - (c < 58 ? 48 : c < 71 ? 55 : 87);
}
function decodeHex(s) {
    validate_1.validateHex(s);
    var a = array_1.ByteArray(s.length >> 1);
    for (var i = 0; i < a.length; i += 2) {
        a[i] = (get_hb(s, i) << 8) | get_hb(s, i + 1);
    }
    return a;
}
exports.decodeHex = decodeHex;
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