cryptography framework php randomness security HMAC cryptomanana design patterns digest factory generators hash hashing object-oriented singleton HKDF KDF Argon2 Bcrypt PBKDF AES AES-128 AES-192 AES-256 CAMELLIA CAMELLIA-128 CAMELLIA-192 CAMELLIA-256 CryptoMañana MD5 SHA-1 SHA-2 SHA-224 SHA-256 SHA-3 SHA-384 SHA-512 Whirlpool block mode cipher decryption encryption initialization vector key padding secret-key algorithm symmetric algorithm two-way encryption CryptoManana Argon2i