security fundamentals for e commerce phần 1 ppt

... 10 11 2 . 18 Security Fundamentals for E- Commerce Table 2 .1 DES S-Box No. 1 012 345678 910 111 213 1 415 0 14 413 1 215 118 310 612 5907 1 015 7 414 213 110 612 119 538 2 411 4 813 6 211 1 512 97 310 50 3 15 12824 917 511 314 100 613 TEAMFLY ... Layer Security 16 1 11 .1 Introduction 16 1 11 .2 Asynchronous Transfer Mode (ATM) 16 2 11 .2 .1 ATM Security Se...

Ngày tải lên: 14/08/2014, 18:21

... public 44 Security Fundamentals for E- Commerce • affiliationChanged: some fields in the certificate have changed (e. g., subject name); • superseded: the certificate has been replaced by another; • cessationOfOperation: ... inserted into a digital envelope before being sent. Digital envelopes can have different formats, for example S/MIME or PGP. S/MIME (Secure/Multipurpose Intern...

Ngày tải lên: 14/08/2014, 18:21

... server). The Via request or response header is used by intermediaries (e. g., proxies) to indicate the intermediate protocols and recipients between the cli- ent and the server (request), and between the ... HTTP request). 266 Security Fundamentals for E- Commerce 16 Web Server Security Access control management on the Web server side is even more difficult than on the Web client...

Ngày tải lên: 14/08/2014, 18:21

... be checked in a central database whether the coin has already been spent. 7 .1. 2 Exchanging Coins The NetCash system 2 was, like NetCheque (see Section 8 .1. 1), developed by the Information Sciences ... if everything has gone well, the payee sends a payment receipt (Payees Payment Receipt) to the payer. In this way the payee cannot later deny that the payer has paid for the ordered items...

Ngày tải lên: 14/08/2014, 18:21

... the public switched telephone network (e. g., via PPP or SLIP, see Chapter 11 ), or make a phone call over the Internet (e. g., voice over IP 1 ). 10 .2 The OSI Reference Model One of the frequently ... boundaries between these networks. For example, one can send an e- mail from the Internet to a mobile phone (e. g., via short message serviceWWW gateways, see Chapter 21) or access the...

Ngày tải lên: 14/08/2014, 18:21

... also authenticates the security negotiation messages, the challenge for A (R a ), and the identities of the participants. 11 .2 .1. 2 Key Exchange If key exchange is required, the key exchange message ... Security Fundamentals for E- Commerce The PPTP version 1 had several serious security flaws which were discovered by Bruce Schneier and Peter Mudge in 19 98 (version 2 has...

Ngày tải lên: 14/08/2014, 18:21

... ServerKeyEx- change message. The ServerKeyExchange message contains a public key for 230 Security Fundamentals for E- Commerce Client Server ClientHello [ChangeCipherSpec] Finished Certificate ClientKeyExchange CertificateVerify [ChangeCipherSpec] Finished ServerHello Certificate CertificateRequest ServerHelloDone Figure ... dif- ferent key management systems (e. g., Kerberos) can...

Ngày tải lên: 14/08/2014, 18:21

... Inspection Before JDK 1. 2 was released, browsers needed some means of providing a more flexible security policy than the very restrictive sandbox model. There are several techniques for achieving ... frame. • disablePrivilege(resource) is called by the external code to deny a privilege enabled earlier by creating a disabled-privilege(resource) frame annotation. Mobile Code Security 31...

Ngày tải lên: 14/08/2014, 18:21

... commercial relationships. Roles are implemented with digital 326 Security Fundamentals for E- Commerce Code time Gatekeeper Credential checker Capability service request with credentials check credentials create ... requirements may be specified in the requestors cre- dentials (e. g., the agent owners credentials) or in an object reference (e. g., the agent reference). Mobile Agen...

Ngày tải lên: 14/08/2014, 18:21

... layer security, 232 NetCash, 10 23, 11 1 13 NetCheque, 11 922 Netscape browser, 302, 312 , 315 Network access layer, 16 162, 16 4 Network access server, 245 Network address port translation, 19 5 Network ... bottlenecks to the development of new e- commerce services (e. g., network speed and thin clients in m -commerce) . Security enhancements often introduce an additional im...

Ngày tải lên: 14/08/2014, 18:21