Crypto.PubKey.RSA.PSS

Documentation

data PSSParams

Parameters for PSS signature/verification.

Constructors

PSSParams

Fields

pssHash :: HashFunction

Hash function to use

pssMaskGenAlg :: MaskGenAlgorithm

Mask Gen algorithm to use

pssSaltLength :: Int

Length of salt. need to be <= to hLen.

pssTrailerField :: Word8

Trailer field, usually 0xbc

defaultPSSParams :: HashFunction -> PSSParams

Default Params with a specified hash function

defaultPSSParamsSHA1 :: PSSParams

Default Params using SHA1 algorithm.

Sign and verify functions

signWithSalt

Arguments

:: ByteString

Salt to use

-> Maybe Blinder

optional blinder to use

-> PSSParams

PSS Parameters to use

-> PrivateKey

RSA Private Key

-> ByteString

Message to sign

-> Either Error ByteString

Sign using the PSS parameters and the salt explicitely passed as parameters.

the function ignore SaltLength from the PSS Parameters

sign

Arguments

:: CPRG g

=> g

random generator to use to generate the salt

-> Maybe Blinder

optional blinder to use

-> PSSParams

PSS Parameters to use

-> PrivateKey

RSA Private Key

-> ByteString

Message to sign

-> (Either Error ByteString, g)

Sign using the PSS Parameters

signSafer

Arguments

:: CPRG g

=> g

random generator

-> PSSParams

PSS Parameters to use

-> PrivateKey

private key

-> ByteString

message to sign

-> (Either Error ByteString, g)

Sign using the PSS Parameters and an automatically generated blinder.

verify

Arguments

:: PSSParams

PSS Parameters to use to verify, this need to be identical to the parameters when signing

-> PublicKey

RSA Public Key

-> ByteString

Message to verify

-> ByteString

Signature

-> Bool

Verify a signature using the PSS Parameters