Hi - looking for a bit of tech help
Pre-conditions:
1. Alice has encrypted the text "red" with her private key, and stores the ciphertext on a public ledger.
2. Her public key is known.
3. Bob knows that Alice has stored a ciphertext corresponding with either "red" or "white" on the ledger.
My Question:
Using the public key, the ciphertext, and knowing the possible cleartext values, is it possible for Bob to determine the value which has been stored?
To put the question another way: If required could Alice prove that the cleartext value is "Red" without using her private key?