1 双运算核 椭圆曲线数字签名算法（elliptic curve digital signature algorithm, ECDSA）是一种被很多国际和国内标准采用的算法，主要包括签名的产生和验证两部分。
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椭圆曲线算法只需要较小长度的密钥就可以获得较高的安全性，因此非常适合用智能卡来实现椭圆曲线数字签名算法。
Elliptic curve digital signature arithmetic can achieve high security using a shorten key, so it is very suitable to realize this arithmetic on smart card.
最后给出了椭圆曲线数字签名算法的执行时间，结果表明，该算法能够有效地工作，与RSA和DSA算法相比，极大地减少了算法的执行时间。
The result indicates that the arithmetic can work availably, comparing with RSA and DSA, the executive time of elliptic curve digital signature arithmetic is reduced greatly.
提出了基于椭圆曲线的数字签名方案，探讨了椭圆曲线密码算法的优点及其特别适用的领域。
This paper has proposed an elliptical curve digital signature program, and has explored the advantages and its special application areas.
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