This means that only the recipient, who is in possession of the corresponding private key, can read the message. Ensure confidentiality by encrypting the entire message with the recipient’s public key.By doing this, any changes to the message will result in a different hash value. This is done by hashing the message and encrypting the hash value with their private key. Ensure integrity by creating a digital signature of the message using the sender’s private key.Public key cryptography can be used several ways to ensure confidentiality, integrity, and authenticity. The other key, called the private key, decrypts the data. One key, called the public key, encrypts the data.
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