| Portability | Good |
|---|---|
| Stability | experimental |
| Maintainer | Vincent Hanquez <vincent@snarc.org> |
| Safe Haskell | None |
Crypto.PubKey.DH
Description
- type Params = (Integer, Integer)
- data PublicNumber
- data PrivateNumber
- data SharedKey
- generateParams :: CPRG g => g -> Int -> Integer -> (Params, g)
- generatePrivate :: CPRG g => g -> Int -> (PrivateNumber, g)
- generatePublic :: Params -> PrivateNumber -> PublicNumber
- getShared :: Params -> PrivateNumber -> PublicNumber -> SharedKey
Documentation
type Params = (Integer, Integer)
Represent Diffie Hellman parameters namely P (prime), and G (generator).
data PublicNumber
Represent Diffie Hellman public number Y.
data PrivateNumber
Represent Diffie Hellman private number X.
generateParams :: CPRG g => g -> Int -> Integer -> (Params, g)
generate params from a specific generator (2 or 5 are common values) we generate a safe prime (a prime number of the form 2p+1 where p is also prime)
generatePrivate :: CPRG g => g -> Int -> (PrivateNumber, g)
generate a private number with no specific property this number is usually called X in DH text.
generatePublic :: Params -> PrivateNumber -> PublicNumber
generate a public number that is for the other party benefits. this number is usually called Y in DH text.
getShared :: Params -> PrivateNumber -> PublicNumber -> SharedKey
generate a shared key using our private number and the other party public number