Advertisement
Published in:
2001 | OriginalPaper | Chapter
The Block Cipher Hierocrypt
Authors : Kenji Ohkuma, Hirofumi Muratani, Fumihiko Sano, Shinichi Kawamura
Published in: Selected Areas in Cryptography
Publisher: Springer Berlin Heidelberg
Included in: Professional Book Archive
Activate our intelligent search to find suitable subject content or patents.
Select sections of text to find matching patents with Artificial Intelligence. powered by
Select sections of text to find additional relevant content using AI-assisted search. powered by
This paper proposes a nested (hierarchical) SPN structure and the symmetric block cipher “Hierocrypt”. In the nested SPN structure, lower-level SPN structures are recursively embedded into S-box positions in SPN of the higher level. This structure recursively assures the lower bound of active S-box number, and high security level is efficiently realized. The 8-round Hierocrypt is implemented in C language on Pentium III, and shows the middle-class performance of final AES candidates.