发明名称 |
Secure key access with one-time programmable memory and applications thereof |
摘要 |
A device includes a key store memory that stores one or more cryptographic keys. A rule set memory stores a set of rules for accessing the cryptographic keys. A key store arbitration module grants access to the cryptographic keys in accordance with the set of rules. The device can be used in conjunction with a key ladder. The device can include a one-time programmable memory and a load module that transfers the cryptographic keys from the one one-time programmable memory to the key store memory and the set of rules to the rule set memory. A validation module can validate the cryptographic keys and the set of rules stored in the key store and rule set memories, based on a signature defined by a signature rule. |
申请公布号 |
EP2381672(A1) |
申请公布日期 |
2011.10.26 |
申请号 |
EP20110150129 |
申请日期 |
2011.01.04 |
申请人 |
VIXS SYSTEMS INC. |
发明人 |
DUCHARNE, PAUL;WONG, ALBERT YUNSANG;STEWART, NORMAN;YIN, WENDY WAI;HUNANG, SHIJUN |
分类号 |
H04N5/00;G06F21/00;H04L9/08;H04N7/167 |
主分类号 |
H04N5/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|