这是密码学领域一个有名的难题--它于20世纪70年代末由著名的RSA公钥加密方案的开发人员提出的。
The problem was a famous one in the field – it had been proposed in the late 1970s by developers of the famous RSA public key encryption scheme.
本文基于智能卡和USB电子加密钥匙开发了一套CSP，详细介绍了其设计方案、实现流程和典型应用案例。
This paper introduces the design, implementation and application of CSP, which is based on Smart Card and USB Key.
在油气田开发中，制定加密井、注采等开采方案需要地下油藏动态变化方面的信息。
In oilfield development, the information on reservoir dynamic state is neded when arranging new wel positions and designing injection and recovery schemes.
该方案初步实施结果表明，对于特低渗透厚层块状油藏，分层系加密开发是可行和经济有效的。
The application of this plan indicated that SZPT for extra low-permeability fractured thick massive reservoir is a feasible and effective way to improve the development effectiveness.
该方案初步实施结果表明，对于特低渗透厚层块状油藏，分层系加密开发是可行和经济有效的。
The application of this plan indicated that SZPT for extra low-permeability fractured thick massive reservoir is a feasible and effective way to improve the development effectiveness.
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