发明名称 |
Dynamic system bus encryption using improved differential transitional encoding |
摘要 |
The present invention provides data encryption for a differential bus employing transitional coding. The present invention maps, encodes and encrypts input data as a logic status for a given bus transfer cycle. The mapping, encoding and encrypting of the input data changes from bus transfer cycle to bus transfer cycle. The mapping, encoding and encrypting is a function of a pseudo-random number. A logic status is differentially transmitted from a bus transmitter to a bus receiver, to be mapped, decrypted and decoded as the corresponding output data.
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申请公布号 |
US7248696(B2) |
申请公布日期 |
2007.07.24 |
申请号 |
US20020242525 |
申请日期 |
2002.09.12 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
CRAFT DAVID JOHN;JOHNS CHARLES RAY |
分类号 |
G06F13/38;H04L9/00;G09C1/00;H03K3/84;H04K1/00;H04L9/18;H04L9/20 |
主分类号 |
G06F13/38 |
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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