Crypto.PubKey.RSA.OAEP

RSA OAEP mode http://en.wikipedia.org/wiki/Optimal_asymmetric_encryption_padding

Documentation

data OAEPParams

Parameters for OAEP encryption/decryption

Constructors

OAEPParams

Fields

oaepHash :: HashFunction

Hash function to use.

oaepMaskGenAlg :: MaskGenAlgorithm

Mask Gen algorithm to use.

oaepLabel :: Maybe ByteString

Optional label prepended to message.

defaultOAEPParams :: HashFunction -> OAEPParams

Default Params with a specified hash function

OAEP encryption

encryptWithSeed

Arguments

:: ByteString

Seed

-> OAEPParams

OAEP params to use for encryption

-> PublicKey

Public key.

-> ByteString

Message to encrypt

-> Either Error ByteString

Encrypt a message using OAEP with a predefined seed.

encrypt

Arguments

:: CPRG g

=> g

random number generator.

-> OAEPParams

OAEP params to use for encryption.

-> PublicKey

Public key.

-> ByteString

Message to encrypt

-> (Either Error ByteString, g)

Encrypt a message using OAEP

OAEP decryption

decrypt

Arguments

:: Maybe Blinder

Optional blinder

-> OAEPParams

OAEP params to use for decryption

-> PrivateKey

Private key

-> ByteString

Cipher text

-> Either Error ByteString

Decrypt a ciphertext using OAEP

When the signature is not in a context where an attacker could gain information from the timing of the operation, the blinder can be set to None.

If unsure always set a blinder or use decryptSafer

decryptSafer

Arguments

:: CPRG g

=> g

random number generator

-> OAEPParams

OAEP params to use for decryption

-> PrivateKey

Private key

-> ByteString

Cipher text

-> (Either Error ByteString, g)

Decrypt a ciphertext using OAEP and by automatically generating a blinder.