- Block Cipher
- Product Cipher
- Feistel Cipher Structure
- Data Encryption Standard (DES)
- Avalanche Effect
- Analytic Attacks
- Triple Data Encryption Standard (3DES)
- Double Data Encryption Standard (2DES)
- Advanced Encryption Standard (AES)
- Problem of Independent Encryption
- Electronic Codebook (ECB)
- Cipher Block Chaining (CBC)
- Cipher Feedback (CFB)
- Output Feedback (OFB)
- Counter (CTR)