An Improved Salsa20 Stream Cipher
Zhong-Ya ZHANG · Beijing Daxue Xuebao. Zirankexueban · 2011
A new structure is presented for stream cipher.The stream cipher Salsa20 is improved based on the new structure.The results show that the improved algorithm can resist slide attack efficiently as the slid pairs are reduced from 2256 to 0.Furthermore the improved algorithm can resist 2nd preimage attack and differential cryptanalysis.The improved stream cipher doesn't change the encryption speed,which has been tested experimentally.