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Can you add PSS support? #154

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xros opened this issue Feb 9, 2022 · 1 comment
Open

Can you add PSS support? #154

xros opened this issue Feb 9, 2022 · 1 comment

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@xros
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xros commented Feb 9, 2022

When signing data, people recommended to use PSS method rather than PKCS1v15
I saw Pointy Castle is still using PKCS1v15.

https://cryptography.io/en/latest/hazmat/primitives/asymmetric/rsa/#signing
Valid paddings for signatures are PSS and PKCS1v15. PSS is the recommended choice for any new protocols or applications, PKCS1v15 should only be used to support legacy protocols.

https://cryptography.io/en/latest/limitations/#rsa-pkcs1-v1-5-constant-time-decryption

Here's an example like what cryptography on pub.dev https://pub.dev/documentation/cryptography/latest/cryptography/RsaPss-class.html But this one doesn't work for now.

Also for paddings, PKCS8 might be modern.
@Ephenodrom
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I am also interested in this! Bump

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@xros @Ephenodrom