Crypto.Curve25519.Exceptions

An implementation of the core methods of the elliptic curve Curve25519 suite. These functions are largely wrappers over the curve25519-donna library from Google. Note that those functions that utilize a CryptoRandomGen instance may throw a GenError exception if the generator fails for any reason.

Documentation

data PrivateKey

The type of a Curve25519 private key.

Instances

Show PrivateKey

data PublicKey

The type of a Curve25519 public key.

Instances

Show PublicKey

importPublic :: ByteString -> Maybe PublicKey

Import a public key from a ByteString. The ByteString must be exactly 32 bytes long for this to work.

exportPublic :: PublicKey -> ByteString

Export a public key to a ByteString.

generatePrivate :: CryptoRandomGen g => g -> (PrivateKey, g)

Randomly generate a Curve25519 private key.

generatePublic :: PrivateKey -> PublicKey

Randomly generate a Curve25519 public key.

generateKeyPair :: CryptoRandomGen g => g -> (PrivateKey, PublicKey, g)

Randomly generate a key pair.

makeShared :: PrivateKey -> PublicKey -> ByteString

Generate a shared secret from a private key and a public key.