diff --git a/authority/authority.go b/authority/authority.go
index 1ea0936c..0730fe5e 100644
--- a/authority/authority.go
+++ b/authority/authority.go
@@ -290,19 +290,3 @@ func (a *Authority) GetDatabase() db.AuthDB {
 func (a *Authority) Shutdown() error {
 	return a.db.Shutdown()
 }
-
-func parseCryptoSigner(filename, password string) (crypto.Signer, error) {
-	var opts []pemutil.Options
-	if password != "" {
-		opts = append(opts, pemutil.WithPassword([]byte(password)))
-	}
-	key, err := pemutil.Read(filename, opts...)
-	if err != nil {
-		return nil, err
-	}
-	signer, ok := key.(crypto.Signer)
-	if !ok {
-		return nil, errors.Errorf("key %s of type %T cannot be used for signing operations", filename, key)
-	}
-	return signer, nil
-}
diff --git a/kms/softkms/softkms.go b/kms/softkms/softkms.go
index 68d2dc3f..fb38a1c5 100644
--- a/kms/softkms/softkms.go
+++ b/kms/softkms/softkms.go
@@ -23,17 +23,17 @@ type algorithmAttributes struct {
 const DefaultRSAKeySize = 3072
 
 var signatureAlgorithmMapping = map[apiv1.SignatureAlgorithm]algorithmAttributes{
-	apiv1.UnspecifiedSignAlgorithm: algorithmAttributes{"EC", "P-256"},
-	apiv1.SHA256WithRSA:            algorithmAttributes{"RSA", ""},
-	apiv1.SHA384WithRSA:            algorithmAttributes{"RSA", ""},
-	apiv1.SHA512WithRSA:            algorithmAttributes{"RSA", ""},
-	apiv1.SHA256WithRSAPSS:         algorithmAttributes{"RSA", ""},
-	apiv1.SHA384WithRSAPSS:         algorithmAttributes{"RSA", ""},
-	apiv1.SHA512WithRSAPSS:         algorithmAttributes{"RSA", ""},
-	apiv1.ECDSAWithSHA256:          algorithmAttributes{"EC", "P-256"},
-	apiv1.ECDSAWithSHA384:          algorithmAttributes{"EC", "P-384"},
-	apiv1.ECDSAWithSHA512:          algorithmAttributes{"EC", "P-521"},
-	apiv1.PureEd25519:              algorithmAttributes{"OKP", "Ed25519"},
+	apiv1.UnspecifiedSignAlgorithm: {"EC", "P-256"},
+	apiv1.SHA256WithRSA:            {"RSA", ""},
+	apiv1.SHA384WithRSA:            {"RSA", ""},
+	apiv1.SHA512WithRSA:            {"RSA", ""},
+	apiv1.SHA256WithRSAPSS:         {"RSA", ""},
+	apiv1.SHA384WithRSAPSS:         {"RSA", ""},
+	apiv1.SHA512WithRSAPSS:         {"RSA", ""},
+	apiv1.ECDSAWithSHA256:          {"EC", "P-256"},
+	apiv1.ECDSAWithSHA384:          {"EC", "P-384"},
+	apiv1.ECDSAWithSHA512:          {"EC", "P-521"},
+	apiv1.PureEd25519:              {"OKP", "Ed25519"},
 }
 
 // generateKey is used for testing purposes.