Documentation
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Overview ¶
Package curve implements elliptic curve cryptography functions used for the protocol.
Index ¶
Constants ¶
const ( PublicKeySize = curve25519.PublicKeySize SignatureSize = curve25519.SignatureSize )
const PrivateKeySize = curve25519.PrivateKeySize
Variables ¶
This section is empty.
Functions ¶
This section is empty.
Types ¶
type DJBPrivateKey ¶
type DJBPrivateKey struct {
// contains filtered or unexported fields
}
DJBPrivateKey represents an elliptic curve private key.
func (*DJBPrivateKey) Bytes ¶
func (d *DJBPrivateKey) Bytes() []byte
func (*DJBPrivateKey) PublicKey ¶
func (d *DJBPrivateKey) PublicKey() PublicKey
type DJBPublicKey ¶
type DJBPublicKey struct {
// contains filtered or unexported fields
}
DJBPublicKey represents an elliptic curve public key.
func (*DJBPublicKey) Bytes ¶
func (d *DJBPublicKey) Bytes() []byte
func (*DJBPublicKey) Equal ¶
func (d *DJBPublicKey) Equal(key PublicKey) bool
func (*DJBPublicKey) KeyBytes ¶
func (d *DJBPublicKey) KeyBytes() []byte
func (*DJBPublicKey) VerifySignature ¶
func (d *DJBPublicKey) VerifySignature(signature []byte, messages ...[]byte) (bool, error)
type KeyPair ¶
type KeyPair struct {
// contains filtered or unexported fields
}
KeyPair represents a related pair of public and private keys.
func GenerateKeyPair ¶
GenerateKeyPair returns a public/private key pair using the given reader.
It is recommended to use a cryptographic random reader. If random is `nil`, then crypto/rand.Reader is used.
func NewKeyPair ¶
NewKeyPair returns a public/private key pair from the given pair.
The given pair is expected to represent a valid curve.PrivateKey and curve.PublicKey, respectively.
func (*KeyPair) Agreement ¶
Agreement calculates and returns the shared secret between the key pair's private key and the given public key.
func (*KeyPair) PrivateKey ¶
func (k *KeyPair) PrivateKey() PrivateKey
PrivateKey returns the pair's private key.
type KeyType ¶
type KeyType byte
KeyType represents a type of public or private key.
const (
DJB KeyType = 0x05
)
type PrivateKey ¶
type PrivateKey interface {
// Bytes returns an encoding of the private key.
Bytes() []byte
// PublicKey returns the private key's related public key.
PublicKey() PublicKey
// Agreement calculates and returns the shared secret between the private key
// and the given public key.
Agreement(key PublicKey) ([]byte, error)
// Sign calculates the digital signature of the messages.
Sign(random io.Reader, messages ...[]byte) ([]byte, error)
}
PrivateKey represents an elliptic curve private key.
func GeneratePrivateKey ¶
func GeneratePrivateKey(random io.Reader) (PrivateKey, error)
GeneratePrivateKey generates a private key using the given random reader.
It is recommended to use a cryptographic random reader. If random is `nil`, then crypto/rand.Reader is used.
func NewPrivateKey ¶
func NewPrivateKey(key []byte) (PrivateKey, error)
NewPrivateKey returns a PrivateKey based on the given key.
type PublicKey ¶
type PublicKey interface {
// Bytes returns an encoding of the public key.
Bytes() []byte
// KeyBytes returns an encoding of the public key without the type prefix.
KeyBytes() []byte
// Equal reports whether the given public key is the same as this public key.
//
// This check is performed in constant time as long as the keys have the same type.
Equal(key PublicKey) bool
// VerifySignature verifies the signature is a valid signature
// of the messages by the public key.
VerifySignature(signature []byte, messages ...[]byte) (bool, error)
// contains filtered or unexported methods
}
PublicKey represents an elliptic curve public key.
func NewPublicKey ¶
NewPublicKey returns a PublicKey based on the given key.
The first byte of the given key is expected to identify the type of the key.
Source Files
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Directories
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| Path | Synopsis |
|---|---|
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Package curve25519 implements the XEd25519 signature scheme.
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Package curve25519 implements the XEd25519 signature scheme. |