security fundamentals for e commerce phần 4 ppsx

... are 142 Security Fundamentals for E- Commerce not the case, so we have, for example, a public switched telephone network, a mobile telephone network, and the Internet. However, there are already ... Chapter 1 showed the placement of security services and mechanisms in the OSI reference model. Connection-oriented security serv- ices apply to end-to-end connections. More specifi...

Ngày tải lên: 14/08/2014, 18:21

... Data Hassler, Vesna Security fundamentals for e- commerce.  (Artech House computer security series) 1. Business enterprisesComputer networks Security measures 2. Electronic commerce Security measures ... encrypted; • Each key be used only once. This is exactly the case with the one-time pad. Unfortunately, it makes key management extremely difficult, since new keys must be exch...

Ngày tải lên: 14/08/2014, 18:21

... only) are 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Fundamentals for E- Commerce • affiliationChanged: some fields in the certificate have changed (e. g., subject name); • superseded: the certificate has been replaced by ... dif- ference between the last CRL and the new one. A delta-CRL contains new entries that have to be added to the previous CRL, as well as information about the entries to be deleted f...

Ngày tải lên: 14/08/2014, 18:21

... stolen coins. There are, however, some mechanisms to prevent stealing of coins, and they are used to implement the corresponding payment security service. The three digital money security services ... 7 Digital Money Security Digital money represents a new payment instrument for e- commerce. More than any other payment instrument, it demands development of a variety of new securit...

Ngày tải lên: 14/08/2014, 18:21

... appended to it before transmission. If higher level protocols do not use sequence numbers, a sequence number can be appended to the SDU before MAC is computed. Sequence numbers provide replay/reordering ... 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 exc...

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 ... ServerKeyExchange message can also be sent after the serv...

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... 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 s...

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 ... annotation is made on the current stack frame. • checkPrivilege(resource) is called by the system before accessing the resource. This method searches the stack for the enabled- privilege(re...

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... credentials to the gatekeeper. The gatekeeper verifies whether the credentials are valid by passing them to the credential checker. If the credentials are valid, the capability service creates ... 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 Agent Security 349 work under...

Ngày tải lên: 14/08/2014, 18:21

... scanning is better accepted because the distance to the measurement equipment is bigger, but the equip- ment is much more expensive. Surprisingly, the best results are achieved with Smart Card Security ... mechanisms, 5 Security message exchange, 169 Security parameter index, 197, 203, 236 Security policy, 5 Security recovery, 8 Security services, 56 Security testing, 25152 S...

Ngày tải lên: 14/08/2014, 18:21