␡
- IP Security Protocol
- DES Algorithm
- Triple DES Algorithm (3DES)
- Diffie-Hellman (D-H)
- Message Digest 5 (MD5)
- Secure Hash Algorithm 1 (SHA-1)
- Rivest, Shamir, and Adelman Signatures (RSA)
- Internet Key Exchange (IKE)
- Certificate Authorities (CA)
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Rivest, Shamir, and Adelman Signatures (RSA)
RSA is a public-key cryptographic system used for authentication. IKE on the Cisco router or PIX Firewall uses a D-H exchange to determine secret keys on each IPSec peer used by encryption algorithms. The D-H exchange can be authenticated with RSA signatures or pre-shared keys.