Public key encryption, private key decryption
Advantages: to ensure that the recipient of the information is expected
logic:
- Information publisher: Obtain the corresponding public key, encrypt the plaintext to obtain the ciphertext, and publish it.
- Information recipient: receive the ciphertext, decrypt the plaintext with the private key.
Private key encryption, public key decryption
Advantages: to ensure that the sender of the information is expected
logic:
- Information publisher: Use the private key to encrypt the plaintext to obtain the ciphertext, and publish it.
- Information recipient: Obtain the corresponding public key, receive the ciphertext, and use the public key to decrypt the plaintext.