Encryption

... chapter covers encryption in general. Encryption as it is used in firewalls specifically for Virtual Private Networking is covered in Chapter 9. How to Keep a Secret The primary purpose of encryption ... enforcement agency. There are two kinds of encryption in common use on computers today: encryption that will keep coworkers out of your files, and encryption that will keep everyo...

Ngày tải lên: 29/09/2013, 13:20

... - 1 Introduction to Encryption I – SANS GIAC LevelOne ©2000, 2001 1 SANS GIAC LevelOne Security Essentials Introduction to Encryption I Hello, welcome to Introduction to Encryption I. Several ... single key systems. General Encryption Techniques This slide could also be called Encryption 101”. Some people might say that they have a general understanding of encryption and do not...

Ngày tải lên: 21/12/2013, 05:17

... introduction to encryption. Our time is up. Thank you for yours. 6 - 1 Introduction to Encryption II – SANS GIAC LevelOne ©2000, 2001 1 SANS GIAC LevelOne Security Essentials Introduction to Encryption ... 13 Introduction to Encryption II – SANS GIAC LevelOne ©2000, 2001 13 DES • In 1992 is was proven that DES is not a group. This means that multiple DES encryptions are not equiva...

Ngày tải lên: 21/12/2013, 05:17

... thông tin như phương pháp mã hóa ñối xứng với các thuật toán Data Encryption Standard – DES, - 4 - Triple DES, Advanced Encryption Standard – AES; phương pháp mã hóa bất ñối xứng với khóa ... "Nghiên cứu giải thuật Advances Encryption Standard mã hóa văn bản mật tại trường Cao ñẳng công kỹ nghệ Đông Á" nhằm nghiên cứu giải thuật mã hóa ñối xứng Advanced Encryption Sta...

Ngày tải lên: 30/12/2013, 13:46

... it selected the finalist for the Advanced Encryption Standard (AES). 2 - 11 Encryption II - SANS ©2001 11 • Released March 17, 1975 • Rather fast encryption algorithm • Widely used; a de facto standard • ... secure DES: Data Encryption Standard DES is the most commonly used encryption algorithm in the world. On March 17, 1975, the United States government proposed the adoption o...

Ngày tải lên: 17/01/2014, 07:20

... Name of Standard. Advanced Encryption Standard (AES) (FIPS PUB 197). 2. Category of Standard. Computer Security Standard, Cryptography. 3. Explanation. The Advanced Encryption Standard (AES) specifies ... of Terms and Acronyms The following definitions are used throughout this standard: AES Advanced Encryption Standard Affine A transformation consisting of multiplication by a matrix fol...

Ngày tải lên: 27/01/2014, 11:20

... use of an optional encryption algorithm to provide confidentiality and the use of an optional authentication algorithm to provide authentication and integrity. The NULL encryption algorithm ... nature of the NULL encryption algorithm, it is not necessary to transmit an IV or similar cryptographic synchronization data on a per packet (or even a per SA) basis. The NULL encryption...

Ngày tải lên: 14/02/2014, 16:20

...  Conventional encryption (a.k.a. symmetric-key encryption) : Use the same key for encryption and decryption  Public-key encryption (a.k.a. asymmetric-key encryption) : Use different keys for encryption ... 20098 Criteria of Data Encryptions  XOR encryption is secure if a key is only used once, but it’s unpractical  How about keeping encryption algorithms private?  To s...

Ngày tải lên: 17/02/2014, 14:20

... record/node granularity encryption is used. Table 1. Comparing Different Database Encryption Configurations. File- System Encryption DBMS Encryption Application Encryption Encryption at ... of database encryption. Related work can be generally categorized into four main classes: file system encryption, DBMS encryption, application level encryption and client side...

Ngày tải lên: 19/02/2014, 12:20

Ngày tải lên: 24/02/2014, 04:20