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feat: add new constructor for an ecdsa.PublicKey #157

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feat: add new constructor for an ecdsa.PublicKey #157

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12 changes: 11 additions & 1 deletion openpgp/ecdsa/ecdsa.go
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Original file line number Diff line number Diff line change
Expand Up @@ -3,10 +3,12 @@
package ecdsa

import (
"crypto/elliptic"
"errors"
"github.com/ProtonMail/go-crypto/openpgp/internal/ecc"
"io"
"math/big"

"github.com/ProtonMail/go-crypto/openpgp/internal/ecc"
)

type PublicKey struct {
Expand All @@ -19,6 +21,14 @@ type PrivateKey struct {
D *big.Int
}

// NewPublicKeyFromCurve takes an elliptic curve, and returns a PublicKey
// of that curve type.
func NewPublicKeyFromCurve(c elliptic.Curve) *PublicKey {
return &PublicKey{
curve: ecc.NewGenericCurve(c),
}
}

func NewPublicKey(curve ecc.ECDSACurve) *PublicKey {
return &PublicKey{
curve: curve,
Expand Down