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| THE CONSTRUCTIONS OF A2-CODES FROM CONVENTIONAL A-CODES |
| Zhou Zhi; Hu Zhengming |
| Dept. of Information Engineering,Beijing University of Posts & Telecommunications, Beijing 100088 |
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Abstract Using the secret-sharing schemes, especialy the (k,n)-threshold schemes as tools, one method of constructing A2-Code from the general A-Code was given. It was shown that the new codes have all the good properties of the old ones, such as the known information-theoretical and combinatorial bounds of the latters, although asking for some data bits extension. Clearly, this method shows a new dimension of how to design the secret and efficient A2-code.
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Received: 29 September 1995
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1997, Vol. 19 
