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关于SM4算法中iv值配置支持并发加密时每次加密都采用不同的iv值的问题 #156

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shgsky opened this issue Feb 9, 2022 · 2 comments
Open

关于SM4算法中iv值配置支持并发加密时每次加密都采用不同的iv值的问题 #156

shgsky opened this issue Feb 9, 2022 · 2 comments

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@shgsky
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shgsky commented Feb 9, 2022

根据NIST SP800-38A中对IV的要求，为了保证安全性，每次数据加密使用不同的IV值。但当前SM4算法中IV值，是通过全局变量的方式进行赋值，就无法做到大量敏感数据的并发加密。
image

引用：https://nvlpubs.nist.gov/nistpubs/Legacy/SP/nistspecialpublication800-38a.pdf

请问，这块有计划支持iv采用传参的方式进行赋值么？而不是这类全局变量的方式。以支持大量数据并行加密时，每次加密都采用不同的iv值。

感谢！
@xuyang2
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xuyang2 commented Feb 11, 2022

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@xuyang2
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xuyang2 commented Feb 11, 2022 •
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建议内部换成直接用 完成度高的 github.com/emmansun/gmsm/sm4
然后把 github.com/tjfoc/gmsm/sm4 标为 deprecated 不维护

提了个 PR #157
@czdsdo

@xuyang2 xuyang2 mentioned this issue Feb 11, 2022
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@xuyang2 @shgsky