发明名称 |
Asymmetric Cryptographic Device With Local Private Key Generation and Method Therefor |
摘要 |
An asymmetric cryptographic integrated circuit 20 and a data processing device 10 in which the integrated circuit 20 is used are disclosed. A security boundary 44 is confined to the interior of integrated circuit 20. A random number generator 50 with a hardware entropy source 54 and an arithmetic unit 62 programmed through microcode 38'' to perform a variety of cryptographically useful functions are included within security boundary 44. One of these functions is a primality tester 72. A controller 36 for integrated circuit 20 may cause cryptographically sensitive data, such as large random prime numbers and a clear private key to be generated within the confines of security boundary 44. A symmetric key encryption engine 56 is included within security boundary 44 and used to encrypt the clear private key so that a resulting encrypted private key may be stored outside security boundary 44 in a non-volatile memory 12. |
申请公布号 |
US2010027788(A1) |
申请公布日期 |
2010.02.04 |
申请号 |
US20070772655 |
申请日期 |
2007.07.02 |
申请人 |
FREESCALE SEMICONDUCTOR, INC. |
发明人 |
TKACIK THOMAS;DANESHBEH AMIR K. |
分类号 |
H04L9/14;G06F7/58;H04L9/00 |
主分类号 |
H04L9/14 |
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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