Encryption Techniques
Explore encryption methods used in telecommunications to secure data and communications.
Symmetric Encryption
Uses the same key for both encryption and decryption of data.
Common Algorithms:
- AES
- DES
- 3DES
Use Cases:
- Bulk data encryption
- Secure communication channels
- File encryption
Asymmetric Encryption
Uses a pair of public and private keys for encryption and decryption.
Common Algorithms:
- RSA
- ECC
- Diffie-Hellman
Use Cases:
- Secure key exchange
- Digital signatures
- Secure email communication
Hash Functions
One-way functions that produce a fixed-size output from input data.
Common Algorithms:
- SHA-256
- MD5
- bcrypt
Use Cases:
- Data integrity verification
- Password storage
- Digital signatures
End-to-End Encryption
Ensures that only the communicating users can read the messages.
Protocols:
- Signal Protocol
- OTR (Off-the-Record Messaging)
- PGP (Pretty Good Privacy)
Use Cases:
- Secure messaging apps
- Encrypted voice calls
- Secure file transfer