Related papers: Pseudorandom permutations with the fast forward pr…

This paper has been withdrawn because the result turns out to be trivial.

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This paper has been withdrawn by the author because overcame by arXiv:0910.4694

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This paper has been withdrawn by the author due to a crucial error in the submission action.

This paper has been withdrawn by the author due to a crucial argument error at p.10.

This paper has been withdrawn by the authors. Significantly revised versions of the results of this paper are now available in arXiv:0707.0487v2 and arXiv:0808.3169v1.

This paper has been withdrawn by the author(s)

This paper has been withdrawn by the author, because a better treatment is given in the author's Phd. thesis (Sections 3.4.6 and 4.4), now available on the arxiv.

This paper has been withdrawn by the author.

This paper has been withdrawn by the authors.

The paper has been withdrawn due to a crucial error in section 3.

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This paper has been withdrawn by the author(s). Please see arXiv:0711.3910 for revision.

This paper is withdrawn because the results in the paper are included in a paper to be published in Mathematical and Computer Modelling.

The paper has been withdrawn.

The paper has been withdrawn by the author due to a crucial error.

This paper has been withdrawn by the author.