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| DUAL PROBLEM OF HASH ALGORITHM |
| Zhu Huafei; Yang Bo; Wang Xinmei;Xiao Guozhen |
| Xidian University; Xi'an 710071 |
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Abstract Hash algorithm is always with high operation speed such as MDx, SHA. A natural problem is that could one apply for a fast hash scheme to construct a cipher block algorithm. This paper denotes such a problem as dual problem of hash algorithm. Based on the known result, it is proved that several fast secure block cipher can be constructed if a fast secure hash algorithm is given.
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Received: 15 January 1997
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1998, Vol. 20 
