In public key encryption system if A encrypts a message using his private key and sends it to B:

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Q. In public key encryption system if A encrypts a message using his private key and sends it to B:

Even if B knows who sent the message it cannot be decrypted

If B knows it is from A he can decrypt it using A's public key

It cannot be decrypted at all as no one knows A's private key

A should send his public key with the message

Solution:

Public-key cryptography, or asymmetric cryptography, is an encryption scheme that uses two mathematically related, but not identical, keys – a public key and a private key. The public key is used to encrypt and the private key is used to decrypt.

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Q. In public key encryption system if A encrypts a message using his private key and sends it to B:

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Q. In public key encryption system if A encrypts a message using his private key and sends it to B:

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