[Resource Topic] 2004/272: A Characterization of Authenticated-Encryption as a Form of Chosen-Ciphertext Security

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Title:
A Characterization of Authenticated-Encryption as a Form of Chosen-Ciphertext Security

Authors: Tom Shrimpton

Abstract:

In this note we introduce a variation of the standard definition of chosen-ciphertext security, which we call IND-CCA3, and prove that IND-CCA3 is equivalent to authenticated-encryption.

ePrint: https://eprint.iacr.org/2004/272

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