ecdsa

Documentation

Index

• func CheckKey(k key.Key) error
• func DecodeSignature(curve elliptic.Curve, sig []byte) (r, s *big.Int, err error)
• func EncodeSignature(curve elliptic.Curve, r, s *big.Int) ([]byte, error)
• func GenerateKey(alg key.Alg) (key.Key, error)
• func NewSigner(k key.Key) (key.Signer, error)
• func NewVerifier(k key.Key) (key.Verifier, error)
• func ToPublicKey(k key.Key) (key.Key, error)

Functions

func CheckKey

func CheckKey(k key.Key) error

CheckKey checks whether the given key is a valid ECDSA key.

Reference https://datatracker.ietf.org/doc/html/rfc9053#section-2-1

func DecodeSignature

func DecodeSignature(curve elliptic.Curve, sig []byte) (r, s *big.Int, err error)

DecodeSignature decodes (r, s) from a signature binary string using the method specified by RFC 8152 section 8.1.

Reference: https://datatracker.ietf.org/doc/html/rfc9052#section-8.1

func EncodeSignature

func EncodeSignature(curve elliptic.Curve, r, s *big.Int) ([]byte, error)

EncodeSignature encodes (r, s) into a signature binary string using the method specified by RFC 8152 section 8.1.

Reference: https://datatracker.ietf.org/doc/html/rfc9052#section-8.1

func GenerateKey

func GenerateKey(alg key.Alg) (key.Key, error)

GenerateKey generates a new key.Key with given algorithm for ECDSA.

func NewSigner

func NewSigner(k key.Key) (key.Signer, error)

NewSigner creates a key.Signer for the given private key.

func NewVerifier

func NewVerifier(k key.Key) (key.Verifier, error)

NewVerifier creates a key.Verifier for the given public key.

func ToPublicKey

func ToPublicKey(k key.Key) (key.Key, error)

ToPublicKey converts the given private key to a public key. If the key is already a public key, it is returned as-is.