Improving the Efficiency of Re-randomizable and Replayable CCA Secure Public Key Encryption

applied cryptography and network security（2020）

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摘要

Public key encryption schemes that are simultaneously re-randomizable and replayable CCA (Rand-RCCA) secure offer a unique combination of malleability and non-malleability properties: ciphertexts can be re-randomized (and thus made unlinkable) while still retaining the important security guarantee that the message inside stays intact.

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re-randomizable

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