同时利用带位的奇异积分方程理论得到了这一问题可解的主要条件及指数计算公式。

By the singular integral equation theory we obtain the resolvable sufficient and necessary condition and the formula of counting index for the problem.

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一旦因子分解问题可解，攻击者就可以伪造签名。

An attacker could generate a forged signature on the assumption when the factorization problem is solved.

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本算法应用的唯一前提是相应的正问题可解。

The only premise of its application is that the corresponding positive problem should be solvable.

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