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Why not exists method BpGroup.hashG2()? #9

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alexkazancew opened this issue Mar 11, 2019 · 1 comment
Open

Why not exists method BpGroup.hashG2()? #9

alexkazancew opened this issue Mar 11, 2019 · 1 comment
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enhancement

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@alexkazancew
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Hello. I`am sorry for my probably stupid question.
Why method BpGroup.hashG1 is exist for hashing message but method BpGroup.hashG2 not exist?
What is reason for it?
Thanks!
@gdanezis
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Because hashing to G1 is easy to implement, whereas I am not certain how to do this securely for G2 (or even if that is possible?). You are most welcome to contribute a patch, with a clear reference on why the implemented technique is secure.

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@gdanezis @alexkazancew