Automated rollback of commit 7ee4492.

PiperOrigin-RevId: 698350366
Change-Id: I2c75caa9410e88ef017d6bb180fab8b2c35c97a0

signature/ecdsa/ecdsa.go

@@ -21,6 +21,7 @@ import (
 
 	"github.com/tink-crypto/tink-go/v2/core/registry"
 	"github.com/tink-crypto/tink-go/v2/internal/protoserialization"
+	"github.com/tink-crypto/tink-go/v2/internal/registryconfig"
 )
 
 func init() {
@@ -45,4 +46,10 @@ func init() {
 	if err := protoserialization.RegisterParametersSerializer[*Parameters](&parametersSerializer{}); err != nil {
 		panic(fmt.Sprintf("ecdsa.init() failed: %v", err))
 	}
+	if err := registryconfig.RegisterPrimitiveConstructor[*PublicKey](verifierConstructor); err != nil {
+		panic(fmt.Sprintf("ecdsa.init() failed: %v", err))
+	}
+	if err := registryconfig.RegisterPrimitiveConstructor[*PrivateKey](signerConstructor); err != nil {
+		panic(fmt.Sprintf("ecdsa.init() failed: %v", err))
+	}
 }

signature/ecdsa/signer.go

@@ -25,6 +25,7 @@ import (
 	"github.com/tink-crypto/tink-go/v2/insecuresecretdataaccess"
 	"github.com/tink-crypto/tink-go/v2/internal/internalapi"
 	internalecdsa "github.com/tink-crypto/tink-go/v2/internal/signature/ecdsa"
+	"github.com/tink-crypto/tink-go/v2/key"
 	"github.com/tink-crypto/tink-go/v2/subtle"
 	"github.com/tink-crypto/tink-go/v2/tink"
 )
@@ -116,3 +117,11 @@ func (e *signer) Sign(data []byte) ([]byte, error) {
 	}
 	return slices.Concat(e.prefix, signatureBytes), nil
 }
+
+func signerConstructor(key key.Key) (any, error) {
+	that, ok := key.(*PrivateKey)
+	if !ok {
+		return nil, fmt.Errorf("key is not a *ecdsa.PrivateKey")
+	}
+	return NewSigner(that, internalapi.Token{})
+}

signature/ecdsa/verifier.go

@@ -23,6 +23,7 @@ import (
 
 	"github.com/tink-crypto/tink-go/v2/internal/internalapi"
 	internalecdsa "github.com/tink-crypto/tink-go/v2/internal/signature/ecdsa"
+	"github.com/tink-crypto/tink-go/v2/key"
 	"github.com/tink-crypto/tink-go/v2/subtle"
 	"github.com/tink-crypto/tink-go/v2/tink"
 )
@@ -101,3 +102,11 @@ func (e *verifier) Verify(signatureBytes, data []byte) error {
 	}
 	return nil
 }
+
+func verifierConstructor(key key.Key) (any, error) {
+	that, ok := key.(*PublicKey)
+	if !ok {
+		return nil, fmt.Errorf("key is not a *ecdsa.PublicKey")
+	}
+	return NewVerifier(that, internalapi.Token{})
+}