发明名称 THRESHOLD CRYPTOGRAPHY SCHEME FOR CONDITIONAL ACCESS SYSTEMS
摘要 A method and apparatus for authenticating a message, said method including receiving, at a device, data representative of a first share, consctruction a key using said first share and at least two additional shares, said at least two additional shares being stred at said device; and authenticating a message using said consctructed key.
申请公布号 KR20040010565(A) 申请公布日期 2004.01.31
申请号 KR20037006964 申请日期 2003.05.23
申请人 发明人
分类号 H04N7/167;G06F21/24;H04L9/08;H04L9/32;H04N7/16 主分类号 H04N7/167
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