9tut ccna exam

9tut ccna exam

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5. Realization method of original confidential data signature (3) Another reason is that the current pace of development of the computer quite fast, and that makes the co-existence of the Internet into the possibility decrypt greatly increased. The use of such strong computing power for decryption can greatly reduce the time required for decryption. (4) follow the example of EDI trading form, requires the software to follow the same protocol and message format, the software developed by different manufacturers have compatibility and interoperability functions, and can run on different hardware and operating system platforms. 1.3.1 Insecurity of the Internet (3) Web server support module (Web Server the Component) . 11. Issuance of digital certificates The security of a symmetric cryptosystem depends on the following two factors. First,9tut ccna exam, the encryption algorithm must be strong enough. It is practically impossible to decrypt information based on the cipher text itself. Second, the security of the encryption method depends on the secrecy of the key, not the secrecy of the algorithm. Therefore, we do not need to ensure the secrecy of the algorithm, but need to ensure the secrecy of the key . The algorithm implementation speed of the symmetric encryption system is extremely fast. From the test results of the AES candidate algorithm, the software implementation speed has reached several or tens of megabits per second. These characteristics of symmetric cryptosystem make it widely used. Because the algorithm does not need to be kept secret, manufacturers can develop low-cost chips to achieve data encryption. These chips have a wide range of applications and are suitable for mass production.

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Latest Cisco CCNA 200-301 Dumps

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