node-ciphers/dist/aes/ccm.js

Lightweight AES and DES encryption library for Node.js, featuring flexible encoding, multiple cipher modes, and TypeScript support.

import { BaseAesCipher } from "./_internals/base/index.js";
import { randomBytes } from "node:crypto";

//#region src/aes/ccm.ts
var Ccm = class extends BaseAesCipher {
	#authTagLength;
	#ivLength;
	constructor(key, encodingOptions, authTagLength = 16, ivLength = 12) {
		super(key, "ccm", encodingOptions);
		this.#authTagLength = authTagLength;
		this.#ivLength = ivLength;
	}
	decrypt(encryptedData, iv, authTag, authTagLength = this.#authTagLength, encodingOptions, decipherOptions) {
		try {
			const decipher = this.createDecipher(this.dataToBuffer(iv, encodingOptions?.iv || this.encodingOptions.iv), {
				authTagLength,
				...decipherOptions
			});
			decipher.setAuthTag(this.dataToBuffer(authTag, encodingOptions?.authTag || this.encodingOptions.authTag));
			return this.createOkResult(this.getDecipherResult(decipher, encryptedData, encodingOptions));
		} catch (error) {
			return this.createErrorResult(error);
		}
	}
	decryptToJson(encryptedData, iv, authTag, authTagLength = this.#authTagLength, encodingOptions, decipherOptions) {
		const result = this.decrypt(encryptedData, iv, authTag, authTagLength, encodingOptions, decipherOptions);
		if (!result.ok) return result;
		return this.parseJson(result.value);
	}
	encrypt(data, authTagLength = this.#authTagLength, ivLength = this.#ivLength, encodingOptions, cipherOptions) {
		const iv = randomBytes(ivLength);
		try {
			const cipher = this.createCipher(iv, {
				authTagLength,
				...cipherOptions
			});
			const encryptedData = this.getCipherResult(cipher, data, encodingOptions);
			return this.createOkResult({
				authTag: cipher.getAuthTag().toString(encodingOptions?.authTag || this.encodingOptions.authTag),
				authTagLength,
				data: encryptedData,
				iv: iv.toString(encodingOptions?.iv || this.encodingOptions.iv)
			});
		} catch (error) {
			return this.createErrorResult(error);
		}
	}
	encryptJson(data, authTagLength = this.#authTagLength, ivLength = this.#ivLength, encodingOptions, cipherOptions) {
		try {
			return this.encrypt(JSON.stringify(data), authTagLength, ivLength, encodingOptions, cipherOptions);
		} catch (error) {
			return this.createErrorResult(error);
		}
	}
};

//#endregion
export { Ccm };
//# sourceMappingURL=ccm.js.map