Article From:https://www.cnblogs.com/wanjn/p/9967766.html

Symmetric encryption:

  Encryption and decryption use the same key

Asymmetric encryption:

  Encryption and decryption do not use the same key but use the same key.A pairKey: Public key and private key

  Both public and private keys can be encrypted and decrypted. As long as the encryption and decryption is a pair of keys, we can see the system requirements of system docking.

  General usage:

    Sender: Encrypt with other people’s public key and sign with their own private key

    Receiver: Decrypt with its own private key and sign with others’public key

Link of this Article: Encryption and decryption related

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