All of their security is based on elliptic curve discrete logarithm problem.

它们的安全性都是基于椭圆曲线离散对数问题。

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Both of their security are based on the intractability of elliptic curve discrete logarithm problem.

两种方案的安全性都是基于椭圆曲线离散对数问题的难解性。

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Here we give a simpler implement, which encrypts the sensitive data at each level with a key unique to that level, whose security is based on elliptic curve discrete logarithm problem.

该方案将对称加密算法、椭圆曲线公钥加密算法和单向函数有机结合，实现了用户使用权限和关键敏感字段的安全级别的关联。

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