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专利名称：METHOD FOR MAKING SECURE A SECRET
QUANTITY
发明人：LIARDET, PIERRE-YVAN,CHABANNE, HERVE申请号：EP02785487.6申请日：20020904公开号：EP1423937A2公开日：20040602
摘要：A chip card key security system compares (18) a stored (14) intermediate resultafter X iterations and a random delay with the inverse result from the rest of the Niteration sequence and only confirms the encryption if the results are compatible.
申请人：STMICROELECTRONICS S.A.,SAGEM SA
地址：29, Boulevard Romain Rolland 92120 Montrouge FR,27, rue Leblanc 75015 ParisFR
国籍：FR,FR
代理机构：de Beaumont, Michel
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