Safe Haskell	None
Language	Haskell2010

Codec.Encryption.OpenPGP.CFB

Synopsis

decrypt :: SymmetricAlgorithm -> ByteString -> ByteString -> Either CipherError ByteString
decryptPreservingNonce :: SymmetricAlgorithm -> ByteString -> ByteString -> Either CipherError (ByteString, ByteString)
decryptNoNonce :: SymmetricAlgorithm -> IV -> ByteString -> ByteString -> Either CipherError ByteString
decryptOpenPGPCfb :: SymmetricAlgorithm -> ByteString -> ByteString -> Either CipherError ByteString
decryptOpenPGPCfbWithNonce :: SymmetricAlgorithm -> ByteString -> ByteString -> Either CipherError (ByteString, ByteString)
data OpenPGPCFBMode
- = OpenPGPCFBResync
- | OpenPGPCFBNoResync
data OpenPGPCFBModeW (mode :: OpenPGPCFBMode) where
- OpenPGPCFBResyncW :: OpenPGPCFBModeW 'OpenPGPCFBResync
- OpenPGPCFBNoResyncW :: OpenPGPCFBModeW 'OpenPGPCFBNoResync
encryptNoNonce :: SymmetricAlgorithm -> S2K -> IV -> ByteString -> ByteString -> Either CipherError ByteString
encryptOpenPGPCfbRaw :: forall (mode :: OpenPGPCFBMode). OpenPGPCFBModeW mode -> SymmetricAlgorithm -> IV -> ByteString -> ByteString -> Either CipherError ByteString
mdcTrailerForSEIPDv1 :: IV -> ByteString -> ByteString
seipdv1NonceFromIV :: IV -> ByteString
validateSEIPD1MDC :: ByteString -> ByteString -> Either String ByteString
calculateMDC :: ByteString -> ByteString -> Maybe ByteString

Documentation

decrypt :: SymmetricAlgorithm -> ByteString -> ByteString -> Either CipherError ByteString Source #

decryptPreservingNonce :: SymmetricAlgorithm -> ByteString -> ByteString -> Either CipherError (ByteString, ByteString) Source #

decryptNoNonce :: SymmetricAlgorithm -> IV -> ByteString -> ByteString -> Either CipherError ByteString Source #

decryptOpenPGPCfb :: SymmetricAlgorithm -> ByteString -> ByteString -> Either CipherError ByteString Source #

decryptOpenPGPCfbWithNonce :: SymmetricAlgorithm -> ByteString -> ByteString -> Either CipherError (ByteString, ByteString) Source #

data OpenPGPCFBMode Source #

Constructors

OpenPGPCFBResync
OpenPGPCFBNoResync

Instances

Instances details

Show OpenPGPCFBMode Source #
Instance details Defined in Codec.Encryption.OpenPGP.CFB Methods showsPrec :: Int -> OpenPGPCFBMode -> ShowS Source # show :: OpenPGPCFBMode -> String Source # showList :: [OpenPGPCFBMode] -> ShowS Source #
Eq OpenPGPCFBMode Source #
Instance details Defined in Codec.Encryption.OpenPGP.CFB Methods (==) :: OpenPGPCFBMode -> OpenPGPCFBMode -> Bool Source # (/=) :: OpenPGPCFBMode -> OpenPGPCFBMode -> Bool Source #

data OpenPGPCFBModeW (mode :: OpenPGPCFBMode) where Source #

Constructors

OpenPGPCFBResyncW :: OpenPGPCFBModeW 'OpenPGPCFBResync
OpenPGPCFBNoResyncW :: OpenPGPCFBModeW 'OpenPGPCFBNoResync

encryptNoNonce :: SymmetricAlgorithm -> S2K -> IV -> ByteString -> ByteString -> Either CipherError ByteString Source #

encryptOpenPGPCfbRaw Source #

Arguments

:: forall (mode :: OpenPGPCFBMode). OpenPGPCFBModeW mode
-> SymmetricAlgorithm
-> IV
-> ByteString	plaintext (with MDC trailer already appended)
-> ByteString	raw session key bytes
-> Either CipherError ByteString

mdcTrailerForSEIPDv1 :: IV -> ByteString -> ByteString Source #

Compute the MDC trailer appended to SEIPDv1 plaintext before encryption. The trailer is: 0xd3 0x14 SHA1(nonce || plaintext || 0xd3 0x14).

seipdv1NonceFromIV :: IV -> ByteString Source #

The SEIPDv1 nonce: the IV bytes followed by its last two bytes (resync prefix).

validateSEIPD1MDC :: ByteString -> ByteString -> Either String ByteString Source #

Verify the MDC trailer of a decrypted SEIPDv1 payload. Takes the CFB nonce (blockSize+2 prefix bytes retained from decryption) and the full decrypted bytes (payload + MDC packet), and returns the payload without the MDC trailer on success.

calculateMDC :: ByteString -> ByteString -> Maybe ByteString Source #