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This article introduces which two encryption algorithms in windows system can be divided into two types according to the type of key. The content is very detailed. Interested friends can use it for reference. I hope it will be helpful to you.

According to the type of key, encryption algorithm can be divided into "asymmetric key encryption algorithm" and "symmetric key encryption algorithm". Asymmetric key encryption algorithm refers to encryption algorithm that uses different keys for encryption and decryption, while symmetric key encryption algorithm refers to encryption algorithms that use the same key for encryption and decryption.

The operating environment of this tutorial: windows7 system, Dell G3 computer.

The basic process of data encryption is to deal with the original plaintext file or data according to a certain algorithm, so that the unreadable code is "ciphertext", so that it can only show its original appearance after entering the corresponding key. through this way to protect data from being stolen and read by non-legal persons. The inverse process of this process is decryption, that is, the process of converting the encoded information into its original data.

According to the type of key, encryption algorithm can be divided into "asymmetric key encryption algorithm" and "symmetric key encryption algorithm".

Asymmetric encryption algorithms require two keys: a public key (publickey) and a private key (privatekey).

The public key and the private key are a pair. If the data is encrypted with the public key, it can only be decrypted with the corresponding private key. Because encryption and decryption use two different keys, this algorithm is called asymmetric encryption algorithm.

The basic process of asymmetric encryption algorithm to realize the exchange of confidential information is as follows: party A generates a pair of keys and publicizes the public key. Other roles (Party B) who need to send information to Party A use the key (Party A's public key) to encrypt the confidential information and then send it to Party A. Party A then uses its own private key to decrypt the encrypted information.

When Party A wants to reply to Party B, on the contrary, Party B uses Party B's public key to encrypt the data. similarly, Party B uses its own private key for decryption.

Symmetric key encryption algorithm requires only one key: private key, so it is also called private key encryption. It is an encryption algorithm that uses the same key for encryption and decryption.

Sometimes it is called traditional cryptographic algorithm, that is, the encryption key can be calculated from the decryption key, and the decryption key can also be calculated from the encryption key. In most symmetric algorithms, the encryption key and decryption key are the same, so this kind of encryption algorithm is also called secret key algorithm or single key algorithm.

It requires the sender and receiver to agree on a key before communicating securely.

The security of the symmetric algorithm depends on the key, and the disclosure of the key means that anyone can decrypt the message they send or receive, so the confidentiality of the key is very important to the security of the communication.

On the windows system encryption algorithm according to the type of key can be divided into which two can be shared here, I hope the above content can be of some help to everyone, can learn more knowledge. If you think the article is good, you can share it for more people to see.

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