Real world use case- public key encryption?
Suppose I have imported a public key from third party. And I've to send them files encrypting them using public key.
What approach do you suggest to handle this type of scenario?
My approach would be, generate a personal RSA public/private key. Sign the third party public key using my private key.
Then encrypt the files using third party key.
What I don't understand here is how my signing the third party public key, would change the value of their public key or in other words help us?
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