ecdsa

package

v0.0.0-...-d2b8996 Latest Latest Go to latest Published: Sep 8, 2019 License: BSD-3-Clause Imports: 8 Imported by: 1

Details

Valid go.mod file

The Go module system was introduced in Go 1.11 and is the official dependency management solution for Go.
Redistributable license

Redistributable licenses place minimal restrictions on how software can be used, modified, and redistributed.
Tagged version

Modules with tagged versions give importers more predictable builds.
Stable version

When a project reaches major version v1 it is considered stable.
Learn more about best practices

Repository

github.com/keyfuse/tokucore

Documentation ¶

Index ¶

func HashToInt(c elliptic.Curve, hash []byte) *big.Int
func NonceRFC6979(q, x *big.Int, hash []byte) *big.Int
func Sign(priv *ecdsa.PrivateKey, hash []byte) (*big.Int, *big.Int, error)
func Verify(pub *ecdsa.PublicKey, hash []byte, r *big.Int, s *big.Int) bool

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func HashToInt ¶

func HashToInt(c elliptic.Curve, hash []byte) *big.Int

HashToInt -- converts a hash value to an integer. There is some disagreement about how this is done. [NSA] suggests that this is done in the obvious manner, but [SECG] truncates the hash to the bit-length of the curve order first. We follow [SECG] because that's what OpenSSL does. Additionally, OpenSSL right shifts excess bits from the number if the hash is too large and we mirror that too. This is borrowed from crypto/ecdsa.

func NonceRFC6979 ¶

func NonceRFC6979(q, x *big.Int, hash []byte) *big.Int

NonceRFC6979 generates an ECDSA nonce (`k`) deterministically according to RFC 6979. https://tools.ietf.org/html/rfc6979#section-3.2 It takes a 32-byte hash as an input and returns 32-byte nonce to be used in ECDSA algorithm.

func Sign ¶

func Sign(priv *ecdsa.PrivateKey, hash []byte) (*big.Int, *big.Int, error)

Sign -- generates a deterministic ECDSA signature according to RFC 6979 and BIP62.

func Verify ¶

func Verify(pub *ecdsa.PublicKey, hash []byte, r *big.Int, s *big.Int) bool

Verify -- calls ecdsa.Verify to verify the signature of hash using the public key. Returns true if the signature is valid, false otherwise.

Types ¶

This section is empty.

Source Files ¶

View all Source files

?	: This menu
/	: Search site
f or F	: Jump to
y or Y	: Canonical URL