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Chosen-Ciphertext Security from Identity-Based Encryption
Identity-Based Encryption Chosen-Ciphertext Security
2015/8/5
We propose simple and efficient "CCA-secure" public-key encryption schemes (i.e., schemes secure against adaptive chosen-ciphertext attacks) based on any identity-based encryption (IBE) scheme. When i...
Secure Signatures and Chosen Ciphertext Security in a Quantum Computing World
Secure Signatures Chosen Ciphertext Security
2015/8/5
We initiate the study of quantum-secure digital signatures and quantum chosen ciphertext
security. In the case of signatures, we enhance the standard chosen message query model
by allowing the adver...