Two quantum protocols for secure blind decryption with two users preserve message and key secrecy, with the second also hiding the key index and remaining secure against post-protocol server collusion where the classical version fails.
Blind decoding, blind un- deniable signatures, and their applications to privacy 12 protection,
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Quantum secure blind decryption with two users
Two quantum protocols for secure blind decryption with two users preserve message and key secrecy, with the second also hiding the key index and remaining secure against post-protocol server collusion where the classical version fails.