PPT Slide

Notes

Public Key Cryptography

• Asymmetric cryptography - public and private key

• Public key is distributed by the receiver to the  senders to encrypt the message.

• Private key is used by receiver to decode  ciphertext

• Mailbox analogy

• Commonly used public key is RSA (Rivest, Shamir,  and Adleman); 512-bit key, variable block size

• RSA less efficient than DES and IDEA; used to  encrypt secret key

Network Management: Principles and Practice

© Mani Subramanian 2000

13-52

Chapter 13

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