Group WEB PRESENTATION
                Week 13


How Encryption for Strong
    Security Works

        Yukihiro Yoshida (s...
Data Encryption Standard (DES)
  Data Encryption Standard(DES) is a common
code key algorithm to divide data into the bloc...
Link Encryption
  Link encryption is an approach to communications
security that encrypts and decrypts all traffic at each...
File Encryption
 File encryption protects files in central servers and
massstorage devices from being read or changed
with...
Virtual Private Network (VPN)
  VPN is like service of the public circuit that can be
used like the lease line.

  It is u...
Quoted Web sites:
  + Data Encryption Standard (DES)
        http://www.atmarkit.co.jp/aig/02security/des.html

  + Link E...
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Week-13-group-web-presentation-presentation

  1. 1. Group WEB PRESENTATION Week 13 How Encryption for Strong Security Works Yukihiro Yoshida (s1110228) Kei Asakura (s1120003) Ippei Kato (s1140058)
  2. 2. Data Encryption Standard (DES) Data Encryption Standard(DES) is a common code key algorithm to divide data into the block of 64 bit length, and to encrypt each block with the key to 56 bit length. Triple DES has improved code strength by trebl repeating DES. Quoted Web site: http://www.atmarkit.co.jp/aig/02security/des.html
  3. 3. Link Encryption Link encryption is an approach to communications security that encrypts and decrypts all traffic at each end of a communications line (e.g. A teletype circuit). Link encryption contrasts with end-to-end encryption where messages are encrypted by the sender at the point of origin and only decrypted by the intended receiver. Quoted Web site: http://en.wikipedia.org/wiki/Link_encryption
  4. 4. File Encryption File encryption protects files in central servers and massstorage devices from being read or changed without an encryption key. Local file encryption protects data from physical intrusion. Quoted from “How Encryption for Strong Security Works”
  5. 5. Virtual Private Network (VPN) VPN is like service of the public circuit that can be used like the lease line. It is used for VPN to connect the network in the enterprise between bases and the cost is suppressed as for this to the introduction of the lease line. Quoted Web site: http://e-words.jp/w/VPN.html
  6. 6. Quoted Web sites: + Data Encryption Standard (DES) http://www.atmarkit.co.jp/aig/02security/des.html + Link Encryption http://en.wikipedia.org/wiki/Link_encryption + File Encryption How Encryption for Strong Security Works + Virtual Private Network (VPN) http://e-words.jp/w/VPN.html
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