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RE: Understanding End-to-End Encryption with ECDH: A Deep Dive
Really? I think no. Encryption is made to the counter parties so if they use the valid key then it should decrypt at any stage.
Really? I think no. Encryption is made to the counter parties so if they use the valid key then it should decrypt at any stage.
I think you misunderstood me. What I mean is this: When a user generates new keys for their account, both the public and private keys are replaced. As a result, all previously encrypted messages become inaccessible. Even for the other party — who did not change their keys — decryption will fail because the other user's public key has been replaced. The new keys cannot decrypt the old messages; only the old keys remain valid for decrypting previously encrypted messages. The new keys are incompatible with those messages, effectively making them irretrievable.
Example:
User 1 and User 2 exchange encrypted messages . Later, when User 1 generates a new keys, both User 1's and User 2's past messages in that conversation can no longer be decrypted because they were tied to the old keys, which are now replaced.
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Right! there's also no solution for it! One should keep the previous memo too if changing password!