It divides an image into several parts and each part USES an optimal threshold scheme.
将原图像划分为若干子块，对每个子块利用最佳阈值的方法进行分割。
An ideal threshold scheme is constructed from Maximum Distance Separable (MDS) codes, the recovery algorithm in this scheme can detect cheating, recover the correct secret and identify cheaters.
用最大距离可分码构造了一个理想门限体制，该体制中的秘密恢复算法可以正确地恢复秘密，并可检测出伪造的秘密份额，确定伪造者的身份。
Threshold scheme of key escrow based on elliptic curve system, which can avoid cheat, is proposed, and its security is analyzed.
提出了基于椭圆曲线体制的门限密钥托管方案，并对其安全性进行了分析、讨论。
Threshold scheme of key escrow based on elliptic curve system, which can avoid cheat, is proposed, and its security is analyzed.
提出了基于椭圆曲线体制的门限密钥托管方案，并对其安全性进行了分析、讨论。
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