SSL and TLS Essentials Securing the Web phần 2 pptx

... 28 SSL & TLS Essentials: Securing the Web Once Alice and Bob have successfully exchanged the random num- bers, they no longer need public key encryption. Instead, they can use the random ... 22 SSL & TLS Essentials: Securing the Web 2. 2.1 Secret Key Cryptography With secret key cryptography, both parties know the same informa- tion the key and...

Ngày tải lên: 14/08/2014, 14:20

... 1 21 2 .21 1.70.7 2 21 2 .21 1.70 .25 4 3 195 .23 2.91.66 fra-ppp2-fas1-0-0.wan.wcom.net 4 21 2 .21 1.30 .29 5 20 6.175.73.45 hil-border1-atm4-0 -2. wan.wcom.net 6 20 5.156 .22 3.41 ... Toronto SSL and TLS Essentials Securing the Web Stephen Thomas 6 SSL & TLS Essentials: Securing the Web SSL vs. TLS Because SSL is more w...

Ngày tải lên: 14/08/2014, 14:20

... common use of ssl, secure Web browsing, the Web browser is the ssl client and the Web site is the ssl server. These same two roles apply to all applications that use ssl, and the examples ... as the ServerKeyExchange provides the key information for the server, the ClientKeyExchange tells the server the client’s key information. In 48 SSL & TL...

Ngày tải lên: 14/08/2014, 14:20

... 74 SSL & TLS Essentials: Securing the Web SSL vs. TLS The TLS protocol eliminates alert description 41 (NoCertificate) and adds a dozen other val- ues. Value Name Meaning 20 BadRecord- MAC ... messages. SSL vs. TLS The TLS protocol uses a version value of 3.1 in- stead of 3.0. 60 SSL & TLS Essentials: Securing the Web 3.7 Authent...

Ngày tải lên: 14/08/2014, 14:20

... 94 SSL & TLS Essentials: Securing the Web SSL vs. TLS The TLS protocol uses a com- pletely different calculation for the message au- thentication codes. See sec- tion 5.4.3. in the ... Figure 4-13 The ServerHello message designates the CipherSuite. 92 SSL & TLS Essentials: Securing the Web Note the similarity between this calculation...

Ngày tải lên: 14/08/2014, 14:20

... SSL_ RC2_CBC_ 128 _CBC_WITH_MD5 4,0, 128 SSL_ RC2_CBC_ 128 _CBC_EXPORT40_WITH_MD5 1 02 SSL & TLS Essentials: Securing the Web (for the client write iv) or the server and client’s random values (for the server write ... version 2. 0 specification. Table 5-1 SSL Version 2. 0 Cipher Suite Values Value Cipher Suite 1,0, 128 SSL_ RC4_ 128 _WITH_MD5 2, 0, 12...

Ngày tải lên: 14/08/2014, 14:20

... with a tls handshake. 5.5 The Future of SSL and TLS The future evolution of ssl and tls is clearly in the hands of the ietf, as well as developers of Web browsers, Web servers, and other Internet ... pseudorandom output using the second part of the secret, the SHA hash function, and the combined label and seed. 4 Exclusive-OR the results from st...

Ngày tải lên: 14/08/2014, 14:20

... 1 72 SSL & TLS Essentials: Securing the Web sureAlert message at least alerts the parties to the potential problem.) Unfortunately, not all environments can rely on the ClosureAlert. Web ... Offset(s) 00A4, 0160 2. 5 .29 .3 certificatePolicies 024 F 2. 5 .29 .19 basicConstraints 024 2 2. 5 .29 .37 extKeyUsage 0483 2. 16.840.1.113730.1.1 netscape-cert-type 047...

Ngày tải lên: 14/08/2014, 14:20

... 12 14 Pseudo-random function (prf), 124 – 125 Pseudo-random number generation, 42 Pseudo-random output, 123 – 124 Public key certificates, 29 –30 Public key cryptography, 17, 21 , 24 25 , 27 , ... 96–1 02 Cryptography, 17–35, 95–96, 166 algorithms, 22 , 104 asymmetric, 24 25 , 28 full-strength, control of, 113 issues in, 166 public key, 17, 21 , 24 25 , 27 , 29 sec...

Ngày tải lên: 14/08/2014, 14:20

... indicate the end of a secure session. SSL and TLS Essentials Securing the Web Stephen Thom as 24 SSL & TLS Essentials: Securing the Web the algorithm with irrelevant information, enabling the ... 21 2 .21 1.70 .25 4 3 195 .23 2.91.66 fra-ppp2-fas1-0-0.wan.wcom.net 4 21 2 .21 1.30 .29 5 20 6.175.73.45 hil-border1-atm4-0 -2. wan.wcom.ne...

Ngày tải lên: 25/03/2014, 12:09