ccna near me

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S15 9.3.1 SSL ——Provide a secure agreement for online shopping 1) Email encryption Del Msblast.exe \MenuExt , find the right-click menu " Send this picture with QQ MMS " under the key value , as shown in Figure 8.2 . 3) Data receiving and interception (1) Encrypt all message texts with a dual-key cryptosystem. In order to illustrate the working process of the algorithm, a simple example is given below. Obviously, only a small number can be taken here, but as mentioned above, in order to ensure safety, we use much larger numbers in practical applications. 1.6.2 Information Security Protection Technology Every computer user wants the computer to have the safest protection measures. For novices, these may be more difficult. In fact, this is not difficult, just follow the steps below, you can put a solid armor on the computer. Transaction , SET) . On the premise of retaining the customer's credit card authentication, SET has added the authentication of the merchant's identity,ccna near me, which is of great importance for transactions that require payment of currency. Due to the reasonable design, the SET protocol was acquired by IBM , Considering the limitation of frame length, it is necessary to ensure that the length of plaintext and ciphertext are equal to the encryption requirements of data frames. Therefore, block cipher algorithm is used in the encryption and decryption module. The working method of block cipher is to divide the plaintext into fixed-length groups ( blocks ) , encrypt each block with the same key, and output a fixed-length ciphertext. This section takes the DES encryption and decryption algorithm as an example.

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