OpenSSL.EVP.Digest.Error

Low-level bindings to OpenSSL's EVP interface. Most users do not need this code. Check out OpenSSL.Digest for a more comfortable interface.

Documentation

throwIfZero :: String -> IO CInt -> IO ()

Most OpenSSL functions return an approximation of Bool to signify failure. This wrapper makes it easier to move the error handling to the exception layer where appropriate.

newtype UnknownAlgorithm

A custom exception type which is thrown by digestByName in case the requested digest algorithm is not available in the OpenSSL system library.

Constructors

UnknownAlgorithm String

Instances

Exception UnknownAlgorithm

Defined in OpenSSL.EVP.Digest.Error

Methods

toException :: UnknownAlgorithm -> SomeException

fromException :: SomeException -> Maybe UnknownAlgorithm

displayException :: UnknownAlgorithm -> String

Show UnknownAlgorithm

Defined in OpenSSL.EVP.Digest.Error

Methods

showsPrec :: Int -> UnknownAlgorithm -> ShowS

show :: UnknownAlgorithm -> String

showList :: [UnknownAlgorithm] -> ShowS