EPN:encryption padding for NTRU with provable security

MU Ning-bo; HU Yu-pu; WANG Bao-cang

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EPN:encryption padding for NTRU with provable security

更新时间：2024-10-14

- EPN:encryption padding for NTRU with provable security
- Issue 10, Pages: 3-7(2008)
- 作者机构：
  
  西安电子科技大学计算机网络与信息安全教育部重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN918.1
- Published：2008
- 稿件说明：
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MU Ning-bo, HU Yu-pu, WANG Bao-cang. EPN:encryption padding for NTRU with provable security[J]. 2008, (10): 3-7.
DOI：

MU Ning-bo, HU Yu-pu, WANG Bao-cang. EPN:encryption padding for NTRU with provable security[J]. 2008, (10): 3-7. DOI：

摘要

NTRU是目前未被攻破的运行速度最快的公钥加密算法

但它的可证明安全问题尚未得到很好的解决。为NTRU设计了一个明文填充方案EPN

并在NTRU加密函数的单向性困难假设下

用Game-Hopping方法在随机预言机模型下证明了EPN在适应性选择密文攻击下的不可区分性。与现有的NTRU可证明安全明文填充方案NAEP相比

新方案在同样安全性条件下执行效率提高了约25%。

Abstract

Known as the fastest public key cryptosystem available now

the provable security of NTRU has not been solved well.an encryption padding

called EPN was designed

for NTRU.Under the full domain one wayness assumption of NTRU

EPN had been proved indistinguishable from adaptive chosen ciphertext attack by using the Game-Hopping technology in the random oracle model.Compared with present NAEP available

implement efficiency of EPN improves by 25%.

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