Cryptography question


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.


Using the public key, the ciphertext, and the possible cleartext values, is it possible to determine the value which has been stored?


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