Added ctx parameter to Sign and Verify interfaces to allow context passing in the case of remote calls to sign/verify an envelope (i.e. a KMS call)

Author: khalkie

dsse/sign_test.go

@@ -41,11 +41,11 @@ func TestPAE(t *testing.T) {
 
 type nilsigner int
 
-func (n nilsigner) Sign(_ context.Context, data []byte) ([]byte, error) {
+func (n nilsigner) Sign(ctx context.Context, data []byte) ([]byte, error) {
 	return data, nil
 }
 
-func (n nilsigner) Verify(_ context.Context, data, sig []byte) error {
+func (n nilsigner) Verify(ctx context.Context, data, sig []byte) error {
 	if len(data) != len(sig) {
 		return errLength
 	}