'Ek3 dk2 ek1 p' diaporamas de présentation

3DES and Block Cipher Modes of Operation

1.34k views • 68 slides

Applied Cryptography

577 views • 43 slides

Cryptography in Internet Security

514 views • 41 slides

Encryption

Encryption. only the basics. Reading Assignment. Why crypto is hard http://www.counterpane.com/whycrypto.html. Topics. What is Cryptology? Conventional Encryption (secret key) Terminology and Properties Public Key Encryption Terminology Usage Properties Cryptanalysis.

670 views • 39 slides

Chapter 2

Chapter 2. Conventional Encryption Message Confidentiality. Henric Johnson Blekinge Institute of Technology, Sweden http://www.its.bth.se/staff/hjo/ henric.johnson@bth.se. Outline. Conventional Encryption Principles Conventional Encryption Algorithms Cipher Block Modes of Operation

420 views • 26 slides

CPSC 3730 Cryptography

CPSC 3730 Cryptography. Chapter 6 Triple DES, Block Cipher Modes of Operation. Triple-DES. although are no practical attacks on two-key Triple-DES have some indications can use Triple-DES with Three-Keys to avoid even these C = E K3 (D K2 (E K1 (P)))

412 views • 23 slides