ecdsatest

Documentation

Index

• func GenerateKey(t testing.TB, c elliptic.Curve, rand io.Reader) *ecdsa.PrivateKey
• func Sign(t testing.TB, rand io.Reader, priv *ecdsa.PrivateKey, hash []byte) (r, s *big.Int)
• func SignASN1(t testing.TB, rand io.Reader, priv *ecdsa.PrivateKey, hash []byte) []byte

Functions

func GenerateKey

func GenerateKey(t testing.TB, c elliptic.Curve, rand io.Reader) *ecdsa.PrivateKey

GenerateKey generates a new ECDSA private key for the specified curve.

Most applications should use crypto/rand.Reader as rand. Note that the returned key does not depend deterministically on the bytes read from rand, and may change between calls and/or between versions.

func Sign

func Sign(t testing.TB, rand io.Reader, priv *ecdsa.PrivateKey, hash []byte) (r, s *big.Int)

Sign signs a hash (which should be the result of hashing a larger message) using the private key, priv. If the hash is longer than the bit-length of the private key's curve order, the hash will be truncated to that length. It returns the signature as a pair of integers. Most applications should use SignASN1 instead of dealing directly with r, s.

func SignASN1

func SignASN1(t testing.TB, rand io.Reader, priv *ecdsa.PrivateKey, hash []byte) []byte

SignASN1 signs a hash (which should be the result of hashing a larger message) using the private key, priv. If the hash is longer than the bit-length of the private key's curve order, the hash will be truncated to that length. It returns the ASN.1 encoded signature.

The signature is randomized. Most applications should use crypto/rand.Reader as rand. Note that the returned signature does not depend deterministically on the bytes read from rand, and may change between calls and/or between versions.