Storage Guidelines

Best Practices

Hash Storage

• Store hashes in fixed-length fields
• Use appropriate encoding (base64, hex)
• Include algorithm identifier
• Store metadata separately

Database Considerations

• Use appropriate column types and lengths
• Index hash values if needed for lookups
• Implement access controls
• Regular backup and recovery testing

Example Storage Format

CREATE TABLE user_credentials (
    id BIGINT PRIMARY KEY,
    username VARCHAR(255) UNIQUE,
    password_hash CHAR(64),  -- SHA-256 hex output
    salt CHAR(32),          -- 16 bytes in hex
    algorithm VARCHAR(50),   -- Algorithm identifier
    created_at TIMESTAMP,
    updated_at TIMESTAMP
);