How is rsa used for authentication in practice? What are rsa digital signatures?
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Answer Posted / Saurabh Saxena
RSA is commonly used for authentication by creating digital signatures. The sender uses their private key to encrypt a hash of the message, and the recipient can then decrypt this signature using the sender's public key. If the decrypted hash matches the recipient's own hash of the received message, it provides evidence that the message came from the claimed sender.
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