tailieunhanh - Lecture TCP-IP protocol suite (3/e): Chapter 28 - Behrouz Forouzan

Chapter 28 - Security. In this chapter, you will learn to: Differentiate between two categories of cryptography schemes; understand four aspects of security; understand the concept of digital signature; understand the role of key management in entity authentication; know how and where IPSec, TLS, and PPG provide security. | Chapter 28 Upon completion you will be able to: Security Differentiate between two categories of cryptography schemes Understand four aspects of security Understand the concept of digital signature Understand the role of key management in entity authentication Know how and where IPSec, TLS, and PPG provide security Objectives TCP/IP Protocol Suite CRYPTOGRAPHY The word cryptography in Greek means “secret writing.” The term today refers to the science and art of transforming messages to make them secure and immune to attacks. The topics discussed in this section include: Symmetric-Key Cryptography Asymmetric-Key Cryptography Comparison TCP/IP Protocol Suite Figure Cryptography components TCP/IP Protocol Suite In cryptography, the encryption/decryption algorithms are public; the keys are secret. Note: TCP/IP Protocol Suite In symmetric-key cryptography, the same key is used by the sender (for encryption) and the receiver (for decryption). The key is shared. . | Chapter 28 Upon completion you will be able to: Security Differentiate between two categories of cryptography schemes Understand four aspects of security Understand the concept of digital signature Understand the role of key management in entity authentication Know how and where IPSec, TLS, and PPG provide security Objectives TCP/IP Protocol Suite CRYPTOGRAPHY The word cryptography in Greek means “secret writing.” The term today refers to the science and art of transforming messages to make them secure and immune to attacks. The topics discussed in this section include: Symmetric-Key Cryptography Asymmetric-Key Cryptography Comparison TCP/IP Protocol Suite Figure Cryptography components TCP/IP Protocol Suite In cryptography, the encryption/decryption algorithms are public; the keys are secret. Note: TCP/IP Protocol Suite In symmetric-key cryptography, the same key is used by the sender (for encryption) and the receiver (for decryption). The key is shared. Note: TCP/IP Protocol Suite Figure Symmetric-key cryptography TCP/IP Protocol Suite In symmetric-key cryptography, the same key is used in both directions. Note: TCP/IP Protocol Suite Figure Caesar cipher TCP/IP Protocol Suite Figure Transpositional cipher TCP/IP Protocol Suite Figure DES TCP/IP Protocol Suite Figure Iteration block TCP/IP Protocol Suite Figure Triple DES TCP/IP Protocol Suite The DES cipher uses the same concept as the Caesar cipher, but the encryption/ decryption algorithm is much more complex. Note: TCP/IP Protocol Suite Figure Public-key cryptography TCP/IP Protocol Suite Figure RSA TCP/IP Protocol Suite Symmetric-key cryptography is often used for long messages. Note: TCP/IP Protocol Suite Asymmetric-key algorithms are more efficient for short messages. Note: TCP/IP Protocol Suite PRIVACY Privacy means that the sender and the receiver expect confidentiality. The .

• Quản trị mạng
• TCP IP protocol suite
• Lecture TCP IP protocol suite
• Network layer
• Internet protocol
• Cryptography schemes
• Digital signature
• The digital signature category
• Parallel Multiple Signature
• Digital signature and multiple signature
• Different cases for different purposes
• The Multiple signature
• Multiple signature schemes examples
• The Elliptic Curve Digital Signature Algorithm
• Elliptic curve cryptosystems
• Elliptic curve discrete logarithm problem
• Elliptic Curve Digital Signature Algorithm
• Digital Signature Schemes
• Digital Signature Algorithm
• Digital signature algorithm based
• Expanded root problems
• Practical applications
• Digital signature scheme
• Root problem
• Discrete logarithm problem
• Digital signature scheme based
• Algorithm for verifying signature
• Digital signature algorithms
• Classical and modified ElGamal signature
• ElGamal signature scheme
• ElGamal based digital signature algorithms
• Testing and evaluation
• The domain of gaussian integers
• Smartcards without coprocessor
• The Digital signature
• The RSA and ESIGN
• The Implementation of Digital Signature Algorithms
• An 8 bit smart card
• Expanded root problem
• Digital signature scheme in data transfer
• Lược đồ chữ ký số
• Thuật toán chữ ký số
• Digital signature standard
• The Secretary of Commerce
• The DSA dsa parameters
• DSA signature generation
• DSA signature verification
• Blind Signature Protocols
• Based on Russian Standards
• Digital Signature Standards
• Correctness proof of the protocol
• Blind Collective Signature Scheme
• Russian DS Stan dards
• Digital Signature Schema
• Type signature scheme
• Construction of problem analysis
• Problem analysis
• International Journal of Computer Networks and Communications Security
• Offline digital signature recognition classification techniques
• Signature verification methods
• Offline Digital Signature
• Extracting several features
• Signature scheme
• High requirements
• Blind signature
• Original author of a message
• Check the signature
• The Mathematical Background
• The Digital Signature Standard
• Definition of a Signature Scheme
• Classification of Attacks
• A Quick Overview
• Digital Signature Information Security
• Authentication information Security
• Digital Signature theme
• Hash Function Research
• New construction method
• Algorithm for formation of signature
• Blind signature scheme
• Lược đồ chữ ký số mù
• Thuật toán chữ ký số mù
• Chữ ký số
• An toàn thông tin
• Xác thực thông tin
• Bảo mật thông tin
• Đề tài Digital Signature
• Nghiên cứu Hash Function
• International Journal of computer science & communication networks
• Embedded digital signature based data sharing scheme in cloud computing
• Embedded digital signature
• Data sharing scheme in cloud computing
• Users’ private keys
• Discrete logarithmic problem
• Hash Function
• DSA digital signature scheme
• Key distribution systems
• New key schemes