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Lecture Cryptography and network security: Chapter 3
Lecture Cryptography and network security: Chapter 3 after studying this section will help you understand: To define the terms and the concepts of symmetric key ciphers; To emphasize the two categories of traditional ciphers: substitution and transposition ciphers; To describe the categories of cryptanalysis used to break the symmetric ciphers;
67 p actvn 26/03/2024 16 0
Từ khóa: Lecture Cryptography and network security, Cryptography and network security, Traditional Symmetric-Key Ciphers, Kerckhoff’s Principle, Polyalphabetic Ciphers, Monoalphabetic Ciphers
Lecture Cryptography and network security: Chapter 5
Lecture Cryptography and network security: Chapter 5 after studying this section will help you understand: To distinguish between traditional and modern symmetric-key ciphers; To introduce modern block ciphers and discuss their characteristics; To explain why modern block ciphers need to be designed as substitution ciphers.
67 p actvn 26/03/2024 12 0
Từ khóa: Lecture Cryptography and network security, Cryptography and network security, Symmetric-key Ciphers, Modern block cipher, Feistel Ciphers
Lecture Cryptography and network security: Chapter 8
Lecture Cryptography and network security: Chapter 8 after studying this section will help you understand: To show how modern standard ciphers, such as DES or AES, can be used to encipher long messages. To discuss five modes of operation designed to be used with modern block ciphers. To define which mode of operation creates stream ciphers out of the underlying block ciphers.
41 p actvn 26/03/2024 13 0
Từ khóa: Lecture Cryptography and network security, Cryptography and network security, Modern Symmetric-Key Ciphers, Electronic Codebook, Cipher Block Chaining, Cipher Feedback
Variant of OTP Cipher with symmetric key solution
The paper proposes a solution to construct symmetric–key cryptographic algorithms based on OTP cipher developed based on the cipher One – Time Pad (OTP). Advantages of the algorithms built according to the proposed new solution is to have secure and efficient implementation as OTP cipher, but the establishment, management - distribution and usage of keys are exactly the same as the Symmetric key cryptosystems in practice (DES, AES,...).
10 p actvn 25/12/2023 34 0
Từ khóa: Symmetric-Key Cryptography, Symmetric-Key Cryptographic Algorithm, Symmetric-Key Cryptosystems, One - Time Pad Algorithm, OTP Cipher, Mật mã khóa đối xứng, Hệ mật khóa đối xứng
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