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| Modification of Rao-Nam＇s Private-Key Cryptosystem |
| Liu Jin-long;Xu Zong-ze |
| College of Info. Sci. and Tech.,Nanjing Univ. of Aeronaut. and Astronaut., Nanjing 210016, China |
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Abstract A new kind of algorithm is proposed which can produce random error vector without looking up the syndrome-error table. An error vector with larger Hamming weight can be produced by mixing a part of the original error vector with the plaintext. A modified Rao-Nam scheme based on the new algorithm is presented, which requires no storage for random error vector. The scheme is efficient and practical, and offers a much higher security level.
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Received: 23 March 2004
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2005, Vol. 27 
