security fundamentals for e commerce phần 4 ppsx
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...
security fundamentals for e commerce phần 1 ppt
... Data
Hassler, Vesna
Security fundamentals for e- commerce. (Artech House computer security series)
1. Business enterprisesComputer 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...
security fundamentals for e commerce phần 2 ppt
... 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superseded: the certificate has been replaced by ...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...
security fundamentals for e commerce phần 3 pps
... 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...
security fundamentals for e commerce phần 5 doc
... 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...
security fundamentals for e commerce phần 6 pps
... 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...
security fundamentals for e commerce phần 7 pptx
... 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...
security fundamentals for e commerce phần 8 pot
... 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...
security fundamentals for e commerce phần 9 pps
... 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 requestors cre-
dentials (e. g., the agent owners credentials) or in an object reference
(e. g., the agent reference).
Mobile Agent Security 349
work under...
security fundamentals for e commerce phần 10 docx
... 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, 56
Security testing, 25152
S...
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