rionskey-seed/dist/src/libUtil.js

SEED-128-ECB, SEED-128-CBC Library using RionsKey

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
class libUtil {
    splitCopy(baseArray, baseStartIndex, targetArray, targetStartIndex, length) {
        length = length ? length : baseArray.length;
        let result = targetArray;
        for (let i = baseStartIndex; i < baseStartIndex + length; i++)
            result[targetStartIndex++] = baseArray[i];
        return result;
    }
    xor(Array1, Array2, length) {
        length = length ? length : 16;
        let result = new Array(Array1.length);
        for (let i = 0; i < length; i++) {
            result[i] = Array1[i] ^ Array2[i];
        }
        return result;
    }
    endianConversion(params) {
        for (let i = 0; i < params.length; i++) {
            (params[i] >>> 24) |
                (params[i] << 24) |
                ((params[i] << 8) & 0x00ff0000) |
                ((params[i] >>> 8) & 0x0000ff00);
        }
        return params;
    }
    seedShift(A, shift) {
        switch (shift) {
            case 8:
                return 0x000000ff & (A >>> 8);
            case 16:
                return 0x000000ff & (A >>> 16);
            case 24:
                return 0x000000ff & (A >>> 24);
            default:
                return 0x000000ff & A;
        }
    }
}
exports.default = libUtil;