Documentation
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Overview ¶
Package ed25519 implements the Ed25519 signature algorithm. See https://ed25519.cr.yp.to/.
These functions are also compatible with the “Ed25519” function defined in https://tools.ietf.org/html/draft-irtf-cfrg-eddsa-05.
Index ¶
- Constants
- func GenerateKey(rand io.Reader) (publicKey PublicKey, privateKey PrivateKey, err error)
- func RandomKeyPair() *crypto.KeyPair
- func Sign(privateKey PrivateKey, message []byte) []byte
- func Verify(publicKey PublicKey, message, sig []byte) bool
- type Ed25519
- func (p *Ed25519) GenerateKeys() ([]byte, []byte, error)
- func (p *Ed25519) PrivateKeySize() int
- func (p *Ed25519) PrivateToPublic(privateKey []byte) ([]byte, error)
- func (p *Ed25519) PublicKeySize() int
- func (p *Ed25519) RandomKeyPair() *crypto.KeyPair
- func (p *Ed25519) Sign(privateKey []byte, message []byte) []byte
- func (p *Ed25519) Verify(publicKey []byte, message []byte, signature []byte) bool
- type PrivateKey
- type PublicKey
Constants ¶
const ( // PublicKeySize is the size, in bytes, of public keys as used in this package. PublicKeySize = 32 // PrivateKeySize is the size, in bytes, of private keys as used in this package. PrivateKeySize = 64 // SignatureSize is the size, in bytes, of signatures generated and verified by this package. SignatureSize = 64 )
Variables ¶
This section is empty.
Functions ¶
func GenerateKey ¶
func GenerateKey(rand io.Reader) (publicKey PublicKey, privateKey PrivateKey, err error)
GenerateKey generates a public/private key pair using entropy from rand. If rand is nil, crypto/rand.Reader will be used.
func RandomKeyPair ¶
RandomKeyPair generates a randomly seeded ed25519 key pair.
func Sign ¶
func Sign(privateKey PrivateKey, message []byte) []byte
Sign signs the message with privateKey and returns a signature. It will panic if len(privateKey) is not PrivateKeySize.
Types ¶
type Ed25519 ¶
type Ed25519 struct {
}
Ed25519 represents the ed25519 cryptographic signature scheme.
func (*Ed25519) GenerateKeys ¶
GenerateKeys generates a private and public key using the ed25519 signature scheme.
func (*Ed25519) PrivateKeySize ¶
PrivateKeySize returns the private key length.
func (*Ed25519) PrivateToPublic ¶
PrivateToPublic returns the public key given the private key.
func (*Ed25519) PublicKeySize ¶
PublicKeySize returns the public key length.
func (*Ed25519) RandomKeyPair ¶
RandomKeyPair generates a randomly seeded ed25519 key pair.
type PrivateKey ¶
type PrivateKey []byte
PrivateKey is the type of Ed25519 private keys. It implements crypto.Signer.
func (PrivateKey) Public ¶
func (priv PrivateKey) Public() crypto.PublicKey
Public returns the PublicKey corresponding to priv.
func (PrivateKey) Sign ¶
func (priv PrivateKey) Sign(rand io.Reader, message []byte, opts crypto.SignerOpts) (signature []byte, err error)
Sign signs the given message with priv. Ed25519 performs two passes over messages to be signed and therefore cannot handle pre-hashed messages. Thus opts.HashFunc() must return zero to indicate the message hasn't been hashed. This can be achieved by passing crypto.Hash(0) as the value for opts.
Source Files
Directories