Analysis of Modern Cryptographic Encryption Methods and Design of a Password Manager with Enhanced Credential Protection

The study presents the development of a password manager with enhanced cryptographic protection for local storage of credentials. Purpose: to create a software solution that implements secure password generation, encryption, and storage using modern algorithms. Methods: modern cryptographic approaches were applied, including symmetric encryption (AES-GCM), hash functions (SHA-256), and the PBKDF2 algorithm for key generation based on a master password and salt. Results: the implementation of a Java-based software package that allows password policy configuration, protection against bruteforce and dictionary attacks, and data integrity verification. A cryptographic module compliant with NIST and GOST standards has been developed. Practical significance: the software can be used in organizations requiring local protection of confidential data without relying on cloud technologies. It will be suitable for improving information security in small businesses, educational institutions, and development environments. Discussion: the paper highlights the advantages of an autonomous architecture, open source code, and prospects for further development, including functionality expansion and adaptation for corporate use.