Cryptographic system employing cyclic code logic
专利汇可以提供Cryptographic system employing cyclic code logic专利检索，专利查询，专利分析的服务。并且PURPOSE: To realize a cryptography with high security through the use of a cyclic code theory and to ensure the security by executing the multiplication with a specific cryptographic (coding) polynomial so as to execute a 1st cryptographic processing.
CONSTITUTION: A 1st transmission polynomial M(x) signal representing the (k-1)th order of polynomial M(x) is multiplied with a cryptographic polynomial E(x) signal at a 1st multiplier means 11 to apply 1st cryptographic processing. Then by a 1st division means 13, the signal is divided with a cryptographic polynomial G(x) signal to apply a 2nd cryptographic processing, and the result is sent as the (k-2)th order cryptographic polynomial I(x) signal representing the cryptographic polynomial I(x) being the sum of the (k-m-1)th order quotient polynomial Q(x) and the (m-1)th order of residue polynomial R(x). Then a receiver 20 applies decoding in the reverse procedure as that of a sender 10. Thus, the cryptographic processing with high security is attained and so long as two kinds of functions cryptographic polynomials E(x) and G(x) are not known, the decoding of the signal is impossible thereby enhancing the security.
COPYRIGHT: (C)1991,JPO&Japio，下面是Cryptographic system employing cyclic code logic专利的具体信息内容。
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