Impact of Rotations in Salsa20/8 Image Encryption Scheme

Alireza Jolfaei, Abdolrasoul Mirghadri, Ahmadreza Vizandan

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review


Salsa20 uses a single set of rotation distances within its core function. To our knowledge, no design rationales on the choice of rotation distances are given on the Salsa20 core function. This is the first paper that analyzes rotations influence over the output sequence in the Salsa20 image encryption scheme. We focus on the Salsa20/8 image encryption scheme and use recent developments in the analysis of the Salsa20 core function to evaluate the security implications of using different sets of rotation distances in the core function. Finally, we give some observations on the some sets of rotation distances used in the Salsa20/8 image encryption scheme.
Original languageEnglish
Title of host publicationProceedings of the 4th IEEE International Conference on Computer Science and Information Technology
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages7
ISBN (Print)9781612848365
Publication statusPublished - 2011
Externally publishedYes


  • Salsa20
  • image encryption
  • rotation distance


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