Crypto.PubKey.Rabin.OAEP

OAEP padding scheme. See http://en.wikipedia.org/wiki/Optimal_asymmetric_encryption_padding.

Documentation

data OAEPParams hash seed output

Parameters for OAEP padding.

Constructors

OAEPParams

Fields

• oaepHash :: hash

  hash function to use

• oaepMaskGenAlg :: MaskGenAlgorithm seed output

  mask Gen algorithm to use

• oaepLabel :: Maybe ByteString

  optional label prepended to message

defaultOAEPParams :: (ByteArrayAccess seed, ByteArray output, HashAlgorithm hash) => hash -> OAEPParams hash seed output

Default Params with a specified hash function.

pad

Arguments

:: HashAlgorithm hash

=> ByteString

Seed

-> OAEPParams hash ByteString ByteString

OAEP params to use

-> Int

size of public key in bytes

-> ByteString

Message pad

-> Either Error ByteString

Pad a message using OAEP.

unpad

Arguments

:: HashAlgorithm hash

=> OAEPParams hash ByteString ByteString

OAEP params to use

-> Int

size of public key in bytes

-> ByteString

encoded message (not encrypted)

-> Either Error ByteString

Un-pad a OAEP encoded message.