ECDSA allows you to encrypt a message such that with a public key, you'll be able to send it to everyone and only the person that has the correct private key pair would be able to decrypt and read the message. This is useful if you're sending someone sensitive information and you don't want anyone to eavesdrop on it while only the correct recipient could decipher the message.
When Electrum asks for the public key, it's asking for the ECDSA public key and not the public key hash.
It operates similarly to PGP.
Topic: Encrypting messages question - page 2. (Read 395 times)
The only thing you need to encrypt a message is its text and a public key. What's the point?? I can encrypt a message from satoshi's public key then. What will I achieve? I can get the public key of an address right?
It isn't the same with signing/verifying that you prove you own the address.
It isn't the same with signing/verifying that you prove you own the address.
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