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keys: make public key's IsInfinity() public

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It's gonna be used in interops for key validity check.
This commit is contained in:
Roman Khimov 2019-10-10 18:40:16 +03:00
parent c5a4cfaebe
commit 7ab58ff8cb
1 changed files with 4 additions and 4 deletions
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8
pkg/crypto/keys/publickey.go
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@ -61,7 +61,7 @@ func NewPublicKeyFromString(s string) (*PublicKey, error) {
// Bytes returns the byte array representation of the public key. // Bytes returns the byte array representation of the public key.
func (p *PublicKey) Bytes() []byte { func (p *PublicKey) Bytes() []byte {
if p.isInfinity() { if p.IsInfinity() {
return []byte{0x00} return []byte{0x00}
} }
@ -225,14 +225,14 @@ func (p *PublicKey) Verify(signature []byte, hash []byte) bool {
return ecdsa.Verify(publicKey, hash, rBytes, sBytes) return ecdsa.Verify(publicKey, hash, rBytes, sBytes)
} }
// isInfinity checks if point P is infinity on EllipticCurve ec. // IsInfinity checks if the key is infinite (null, basically).
func (p *PublicKey) isInfinity() bool { func (p *PublicKey) IsInfinity() bool {
return p.X == nil && p.Y == nil return p.X == nil && p.Y == nil
} }
// String implements the Stringer interface. // String implements the Stringer interface.
func (p *PublicKey) String() string { func (p *PublicKey) String() string {
if p.isInfinity() { if p.IsInfinity() {
return "00" return "00"
} }
bx := hex.EncodeToString(p.X.Bytes()) bx := hex.EncodeToString(p.X.Bytes())