emotionctl/dist/services/CryptoService.js

A secure terminal-based journaling system designed as a safe space for developers going through heartbreak, breakups, or betrayal

"use strict";
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var __importStar = (this && this.__importStar) || (function () {
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Object.defineProperty(exports, "__esModule", { value: true });
exports.CryptoService = void 0;
const CryptoJS = __importStar(require("crypto-js"));
class CryptoService {
    /**
     * Generates a cryptographic key from password using PBKDF2
     */
    static deriveKey(password, salt) {
        return CryptoJS.PBKDF2(password, salt, {
            keySize: this.KEY_SIZE / 32,
            iterations: this.ITERATIONS,
            hasher: CryptoJS.algo.SHA256
        });
    }
    /**
     * Encrypts data using AES-256-CBC
     */
    static encrypt(data, password) {
        try {
            // Generate random salt and IV
            const salt = CryptoJS.lib.WordArray.random(this.SALT_SIZE / 8);
            const iv = CryptoJS.lib.WordArray.random(this.IV_SIZE / 8);
            // Derive key from password
            const key = this.deriveKey(password, salt);
            // Encrypt the data
            const encrypted = this.ALGORITHM.encrypt(data, key, {
                iv: iv,
                mode: CryptoJS.mode.CBC,
                padding: CryptoJS.pad.Pkcs7
            });
            return {
                data: encrypted.toString(),
                iv: iv.toString(),
                salt: salt.toString()
            };
        }
        catch (error) {
            throw new Error(`Encryption failed: ${error}`);
        }
    }
    /**
     * Decrypts data using AES-256-CBC
     */
    static decrypt(encryptedData, password) {
        try {
            // Parse salt and IV
            const salt = CryptoJS.enc.Hex.parse(encryptedData.salt);
            const iv = CryptoJS.enc.Hex.parse(encryptedData.iv);
            // Derive key from password
            const key = this.deriveKey(password, salt);
            // Decrypt the data
            const decrypted = this.ALGORITHM.decrypt(encryptedData.data, key, {
                iv: iv,
                mode: CryptoJS.mode.CBC,
                padding: CryptoJS.pad.Pkcs7
            });
            const decryptedString = decrypted.toString(CryptoJS.enc.Utf8);
            if (!decryptedString) {
                throw new Error('Invalid password or corrupted data');
            }
            return decryptedString;
        }
        catch (error) {
            throw new Error(`Decryption failed: ${error}`);
        }
    }
    /**
     * Generates a secure hash of a password for verification
     */
    static hashPassword(password) {
        const salt = CryptoJS.lib.WordArray.random(128 / 8);
        const hash = CryptoJS.PBKDF2(password, salt, {
            keySize: 256 / 32,
            iterations: this.ITERATIONS,
            hasher: CryptoJS.algo.SHA256
        });
        return salt.toString() + ':' + hash.toString();
    }
    /**
     * Verifies a password against its hash
     */
    static verifyPassword(password, hash) {
        try {
            const [saltStr, hashStr] = hash.split(':');
            const salt = CryptoJS.enc.Hex.parse(saltStr);
            const computedHash = CryptoJS.PBKDF2(password, salt, {
                keySize: 256 / 32,
                iterations: this.ITERATIONS,
                hasher: CryptoJS.algo.SHA256
            });
            return computedHash.toString() === hashStr;
        }
        catch (error) {
            return false;
        }
    }
    /**
     * Generates a random ID for journal entries
     */
    static generateId() {
        return CryptoJS.lib.WordArray.random(64 / 8).toString();
    }
}
exports.CryptoService = CryptoService;
CryptoService.ALGORITHM = CryptoJS.AES;
CryptoService.KEY_SIZE = 256;
CryptoService.IV_SIZE = 128;
CryptoService.SALT_SIZE = 128;
CryptoService.ITERATIONS = 10000;
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