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3 Result(s)

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  1. Chapter and Conference Paper

    Revocation for Delegatable Anonymous Credentials

    This paper introduces and formalizes homomorphic proofs that allow ‘adding’ proofs and proof statements to get a new proof of the ‘sum’ statement. Additionally, we introduce a construction of homomorphic proofs, ...

    Tolga Acar, Lan Nguyen in Public Key Cryptography – PKC 2011 (2011)

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  2. Chapter and Conference Paper

    Cryptographic Agility and Its Relation to Circular Encryption

    We initiate a provable-security treatment of cryptographic agility. A primitive (for example PRFs, authenticated encryption schemes or digital signatures) is agile when multiple, individually secure schemes can s...

    Tolga Acar, Mira Belenkiy, Mihir Bellare… in Advances in Cryptology – EUROCRYPT 2010 (2010)

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    Article

    Montgomery Multiplication in GF(2k)

    We show that the multiplication operation c=a · b · r-1 in the field GF(2k can be implemented significantly faster in software than the standard multiplication, where r is a special fixed element of the field. Th...

    Cetin K. Koc, Tolga Acar in Designs, Codes and Cryptography (1998)