That's if you sign the data. If you just run Decrypt, it does not ask for a hash function. Under the hood, it uses Sha-1. Edit: Here is a link to the golang im

That's if you sign the data. If you just run Decrypt, it does not ask for a hash function. Under the hood, it uses Sha-1. Edit: Here is a link to the golang implementation http://golang.org/pkg/crypto/rsa/#DecryptOAEP http://golang.org/pkg/crypto/rsa/#DecryptOAEP It takes a hash as the first param Here is the C# counterpart http://msdn.microsoft.com/en-us/library/system.security.cryptography.rsa.decryptvalue(v=vs.110).aspx http://msdn.microsoft.com/en-us/library/system.security.cryp... It does not take in a hash function though I believe you can modify how it works although I never tried to. I wasn't referring to explicitly signing the data.