What are the examples of cryptology?

Cryptology encompasses various techniques and systems used for secure communication and information protection. Examples include symmetric encryption algorithms like AES (Advanced Encryption Standard), which uses the same key for both encryption and decryption, and asymmetric encryption methods such as RSA, which employs a pair of public and private keys. Additionally, cryptographic hash functions like SHA-256 are used for data integrity and verification, while digital signatures provide authentication and non-repudiation in digital communications.