发明名称 |
Conditional access system for set-top boxes |
摘要 |
A system conditionally establishes a communication channel between two devices only if one device is authenticated by the other device. Authentication of the second device by the first device involves sending a message to the second device; receiving, from the second device, the message encrypted using a private key of the second device and a digital certificate having a public key of the second device; decrypting the digital certificate to obtain the public key, using the public key to decrypt the message and comparing the decrypted message to the message originally sent to the second device. |
申请公布号 |
AU7725898(A) |
申请公布日期 |
1998.12.21 |
申请号 |
AU19980077258 |
申请日期 |
1998.06.05 |
申请人 |
THOMSON CONSUMER ELECTRONICS, INC |
发明人 |
AHMET MURSIT ESKICIOGLU;KEITH REYNOLDS WEHMEYER;DAVID EMERY VIRAG |
分类号 |
G06F21/10;G09C1/00;H04L9/32;H04N7/16;H04N7/167 |
主分类号 |
G06F21/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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