What is Diffie-Hellmann key exchange in SAP BC-SEC - Security?

SAP Term: Diffie-Hellmann key exchange

• Component: BC-SEC

• Component Name: Security

• Description: protocol that allows parties with no prior knowledge of each other to agree on a shared key for encrypting further communication.

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• Key Concepts: 
  Diffie-Hellmann key exchange is a cryptographic protocol used to securely exchange cryptographic keys over an unsecured network. It was developed by Whitfield Diffie and Martin Hellman in 1976 and is based on the concept of public-key cryptography. The protocol allows two parties to generate a shared secret key over an insecure channel without exchanging any secret information. 
  
  How to use it: 
  The Diffie-Hellmann key exchange protocol is used in SAP BC-SEC Security to securely exchange cryptographic keys between two parties. The protocol works by having each party generate a public and private key pair, which are then exchanged over an unsecured network. The two parties then use their respective private keys to generate a shared secret key, which can be used for secure communication. 
  
  Tips & Tricks: 
  When using the Diffie-Hellmann key exchange protocol, it is important to ensure that the public and private keys are kept secure. Additionally, it is important to ensure that the shared secret key is not exposed to any third parties. 
  
  Related Information: 
  The Diffie-Hellmann key exchange protocol is used in many other applications, such as SSL/TLS, SSH, and IPSec. Additionally, the protocol has been extended to support multiple parties and can be used for secure communication between multiple parties.