Back to Search
Start Over
A New Mode of Encryption Providing a Tweakable Strong Pseudo-random Permutation.
- Source :
- Fast Software Encryption (9783540365976); 2006, p293-309, 17p
- Publication Year :
- 2006
-
Abstract
- We present PEP, which is a new construction of a tweakable strong pseudo-random permutation. PEP uses a hash-encrypt-hash approach which has been recently used in the construction of HCTR. This approach is different from the encrypt-mask-encrypt approach of constructions such as CMC, EME and EME*. The general hash-encrypt-hash approach was earlier used by Naor-Reingold to provide a generic construction technique for an SPRP (but not a tweakable SPRP). PEP can be seen as the development of the Naor-Reingold approach into a fully specified mode of operation with a concrete security reduction for a tweakable strong pseudo-random permutation. HCTR is also based on the Naor-Reingold approach but its security bound is weaker than PEP. Compared to previous known constructions, PEP is the only known construction of tweakable SPRP which uses a single key, is efficiently parallelizable and can handle an arbitrary number of blocks. Keywords: mode of operation, tweakable encryption, strong pseudo-random permutation. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISBNs :
- 9783540365976
- Database :
- Complementary Index
- Journal :
- Fast Software Encryption (9783540365976)
- Publication Type :
- Book
- Accession number :
- 32888550
- Full Text :
- https://doi.org/10.1007/11799313_19