VMPC One-Way Function
نویسنده
چکیده
The VMPC function is a combination of triple permutation composition and integer addition. It differs from a simple triple permutation composition with one integer addition operation performed on some of the elements of the permutation. The consequence of this addition operation is corruption of cycle structure of the transformed permutation the fundamental source of the function's resistance to inverting.
منابع مشابه
On inverting the VMPC one-way function
We investigate the possibilities of inverting the VMPC one-way function, which was proposed at FSE 2004. First, we describe the function using the language of permutation theory. Next, easily invertible instances of VMPC are derived. We also show that no VMPC function is oneto-one. Implications of these results for cryptographic applications of VMPC conclude the paper.
متن کاملVMPC One-Way Function and Stream Cipher
A simple one-way function along with its proposed application in symmetric cryptography is described. The function is computable with three elementary operations on permutations per byte. Inverting the function, using the most efficient method known to the author, is estimated to require an average computational effort of about 2 operations. The proposed stream cipher based on the function was ...
متن کاملTwo Linear Distinguishing Attacks on VMPC and RC4A and Weakness of RC4 Family of Stream Ciphers (Corrected)
1 At FSE 2004 two new stream ciphers VMPC and RC4A have been proposed. VMPC is a generalisation of the stream cipher RC4, whereas RC4A is an attempt to increase the security of RC4 by introducing an additional permuter in the design. This paper is the first work presenting attacks on VMPC and RC4A. We propose two linear distinguishing attacks, one on VMPC of complexity 2, and one on RC4A of com...
متن کاملTwo Linear Distinguishing Attacks on VMPC and RC4A and Weakness of RC4 Family of Stream Ciphers
At FSE 2004 two new stream ciphers VMPC and RC4A have been proposed. VMPC is a generalisation of the stream cipher RC4, whereas RC4A is an attempt to increase the security of RC4 by introducing an additional permuter in the design. This paper is the first work presenting attacks on VMPC and RC4A. We propose two linear distinguishing attacks, one on VMPC of complexity 2, and one on RC4A of compl...
متن کاملVMPC Stream Cipher
The VMPC function is a combination of triple permutation composition and integer addition. It differs from a simple triple permutation composition with one integer addition operation performed on some of the elements of the permutation. The consequence of this addition operation is corruption of cycle structure of the transformed permutation the fundamental source of the function's resistance t...
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ورودعنوان ژورنال:
- IACR Cryptology ePrint Archive
دوره 2003 شماره
صفحات -
تاریخ انتشار 2003