'Cipher system' presentation slideshows

Session 1

Session 1. Classical Cryptography. Basic concepts. Cryptology kryptos =secret + logos =(word, language, meaning, science) Cryptology = Cryptography + Cryptanalysis Opposite and complementary at the same time. Basic concepts. Cryptography

847 views • 71 slides

Session 1

Session 1. Classical Cryptography. Basic concepts. Cryptology kryptos =secret + logos =(word, language, meaning, science) Cryptology = Cryptography + Cryptanalysis Opposite and complementary at the same time. Basic concepts. Cryptography

822 views • 71 slides

Lecture 4: Crypto

767 views • 62 slides

Session 4

Session 4. Asymmetric ciphers. Contents. Definition of asymmetric (public key) ciphers Applications of asymmetric ciphers The public key encipherment procedure The RSA public key cipher system. KEY. KEY. encipher. Ciphertext. decipher. Plaintext. Plaintext. A. B. Cryptanalysis.

717 views • 61 slides

Encryption and Decryption

Encryption and Decryption. Speaker:Tsung Ray Wang Advisor:Prof.Li-Chun Wang. Contents. MODELS,GOALS,AND EARLY CIPHER SYSTEMS THE SECRECY OF A CIPHER SYSTEM PRACTICAL SECURITY STREAM ENCRYPTION PUBLIC KEY CRYPTOSYSTEMS. Model of a cryptographic channel. Cryptanalyst.

691 views • 38 slides

1st Class Discrete Structures ??????? ???????? ?????? ?????? : ? .? . ??? ???? ????

305 views • 13 slides