Examples
Examples of well-regarded asymmetric key techniques for varied purposes include:
- Diffie–Hellman key exchange protocol
- DSS (Digital Signature Standard), which incorporates the Digital Signature Algorithm
- ElGamal
- Various elliptic curve techniques
- Various password-authenticated key agreement techniques
- Paillier cryptosystem
- RSA encryption algorithm (PKCS#1)
- Cramer–Shoup cryptosystem
Examples of asymmetric key algorithms not widely adopted include:
- NTRUEncrypt cryptosystem
- McEliece cryptosystem
Examples of notable - yet insecure - asymmetric key algorithms include:
- Merkle–Hellman knapsack cryptosystem
Examples of protocols using asymmetric key algorithms include:
- GPG, an implementation of OpenPGP
- Internet Key Exchange
- PGP
- ZRTP, a secure VoIP protocol
- Secure Socket Layer, now codified as the IETF standard Transport Layer Security (TLS)
- SILC
- SSH
- Bitcoin
Read more about this topic: Public-key Cryptography
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