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RSAPrivateKey totient function (issue/question) #207

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andry-brill opened this issue Sep 24, 2023 · 0 comments
Open

RSAPrivateKey totient function (issue/question) #207

andry-brill opened this issue Sep 24, 2023 · 0 comments

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@andry-brill
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andry-brill commented Sep 24, 2023 •
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Now

In api.dart uses Euler totient function to calculate _pubExp in RSAPrivateKey.

But

Most modern implementations of RSA generators apply the Carmichael totient function lcm(p - 1, q - 1).

And when I'm generating RSAPrivateKey outside of the pc-dart calculated _pubExp != original.

More details in question on stackoverflow

Not expert in security, so I don't know consequences, but from development's side it feels strange.
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