Crypto.PubKey.DSA

An implementation of the Digital Signature Algorithm (DSA)

Documentation

data Params

Represent DSA parameters namely P, G, and Q.

Constructors

Params

Fields

params_p :: Integer

DSA p

params_g :: Integer

DSA g

params_q :: Integer

DSA q

Instances

Eq Params

Data Params

Read Params

Show Params

Typeable Params

ASN1Object Params

data Signature

Represent a DSA signature namely R and S.

Constructors

Signature

Fields

sign_r :: Integer

DSA r

sign_s :: Integer

DSA s

Instances

Eq Signature

Data Signature

Read Signature

Show Signature

Typeable Signature

ASN1Object Signature

data PublicKey

Represent a DSA public key.

Constructors

PublicKey

Fields

public_params :: Params

DSA parameters

public_y :: PublicNumber

DSA public Y

Instances

Eq PublicKey

Data PublicKey

Read PublicKey

Show PublicKey

Typeable PublicKey

ASN1Object PublicKey

data PrivateKey

Represent a DSA private key.

Only x need to be secret. the DSA parameters are publicly shared with the other side.

Constructors

PrivateKey

Fields

private_params :: Params

DSA parameters

private_x :: PrivateNumber

DSA private X

Instances

Eq PrivateKey

Data PrivateKey

Read PrivateKey

Show PrivateKey

Typeable PrivateKey

signature primitive

sign :: CPRG g => g -> PrivateKey -> HashFunction -> ByteString -> (Signature, g)

sign message using the private key.

signWith

Arguments

:: Integer

k random number

-> PrivateKey

private key

-> HashFunction

hash function

-> ByteString

message to sign

-> Maybe Signature

sign message using the private key and an explicit k number.

verification primitive

verify :: HashFunction -> PublicKey -> Signature -> ByteString -> Bool

verify a bytestring using the public key.