mode-ecb.js•1.13 kB
"use strict";
// Electronic Code Book
Object.defineProperty(exports, "__esModule", { value: true });
exports.ECB = void 0;
const mode_js_1 = require("./mode.js");
class ECB extends mode_js_1.ModeOfOperation {
constructor(key) {
super("ECB", key, ECB);
}
encrypt(plaintext) {
if (plaintext.length % 16) {
throw new TypeError("invalid plaintext size (must be multiple of 16 bytes)");
}
const crypttext = new Uint8Array(plaintext.length);
for (let i = 0; i < plaintext.length; i += 16) {
crypttext.set(this.aes.encrypt(plaintext.subarray(i, i + 16)), i);
}
return crypttext;
}
decrypt(crypttext) {
if (crypttext.length % 16) {
throw new TypeError("invalid ciphertext size (must be multiple of 16 bytes)");
}
const plaintext = new Uint8Array(crypttext.length);
for (let i = 0; i < crypttext.length; i += 16) {
plaintext.set(this.aes.decrypt(crypttext.subarray(i, i + 16)), i);
}
return plaintext;
}
}
exports.ECB = ECB;
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