Crypto.Sign.Ed25519

This module provides bindings to the ed25519 public-key signature system, including detached signatures. The underlying implementation uses the ref10 implementation of ed25519 from SUPERCOP, and should be relatively fast.

For more information (including how to get a copy of the software) visit http://ed25519.cr.yp.to.

Keypair creation

newtype PublicKey

A PublicKey created by createKeypair.

Constructors

PublicKey

Fields

unPublicKey :: ByteString

Instances

Eq PublicKey

Ord PublicKey

Show PublicKey

newtype SecretKey

A SecretKey created by createKeypair. Be sure to keep this safe!

Constructors

SecretKey

Fields

unSecretKey :: ByteString

Instances

Eq SecretKey

Ord SecretKey

Show SecretKey

createKeypair :: IO (PublicKey, SecretKey)

Randomly generate a public and private key for doing authenticated signing and verification.

Signing and verifying messages

sign

Arguments

:: SecretKey

Signers secret key

-> ByteString

Input message

-> ByteString

Resulting signed message

Sign a message with a particular SecretKey.

verify

Arguments

:: PublicKey

Signers public key

-> ByteString

Signed message

-> Bool

Verification check

Verifies a signed message against a PublicKey.

Detached signatures

newtype Signature

A Signature which is detached from the message it signed.

Constructors

Signature

Fields

unSignature :: ByteString

Instances

Eq Signature

Ord Signature

Show Signature

sign'

Arguments

:: SecretKey

Signers secret key

-> ByteString

Input message

-> Signature

Message signature, without the message

Sign a message with a particular SecretKey, only returning the signature without the message.

verify'

Arguments

:: PublicKey

Signers public key

-> ByteString

Input message, without signature

-> Signature

Message signature

-> Bool

Verify a message with a detached Signature, for a given PublicKey.