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A tool to generate and verify signature of a binary file

gp flag

I'm looking for an easy to use tool to generate RsaPssSha256 digital signature of a binary file using the private key. and verify the signature using the modulus and exponent of the public key.

any suggestion?

kelalaka avatar
in flag
RSA sign, DSA, ECDSA, edDSA, however, what is the type of your private key?
makouda avatar
gp flag
@kelalaka updated the question
kelalaka avatar
in flag
Then what do you want, a library?
kelalaka avatar
in flag
There is [software recommendation](https://softwarerecs.stackexchange.com/). did you look at OpenSLL. It has a long tradition about cryptography...
Maarten Bodewes avatar
in flag
https://stackoverflow.com/a/44430091/589259
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