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add support for JsonWebKey2020

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This commit is contained in:
Michael Muré
2025-06-25 10:51:13 +02:00
committed by Michael Muré
parent 775b693cd0
commit 2809127a08
7 changed files with 493 additions and 18 deletions
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8
crypto/p256/public.go
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@@ -31,6 +31,14 @@ func PublicKeyFromBytes(b []byte) (*PublicKey, error) {
return (*PublicKey)(&ecdsa.PublicKey{Curve: elliptic.P256(), X: x, Y: y}), nil
}
// PublicKeyFromXY converts x and y coordinates into a PublicKey.
func PublicKeyFromXY(x, y *big.Int) (*PublicKey, error) {
if !elliptic.P256().IsOnCurve(x, y) {
return nil, fmt.Errorf("invalid P-256 public key")
}
return (*PublicKey)(&ecdsa.PublicKey{Curve: elliptic.P256(), X: x, Y: y}), nil
}
// PublicKeyFromPublicKeyMultibase decodes the public key from its Multibase form
func PublicKeyFromPublicKeyMultibase(multibase string) (*PublicKey, error) {
code, bytes, err := helpers.PublicKeyMultibaseDecode(multibase)