Add missing key manifest functions

Signed-off-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>

Author: zaolin

pkg/intel/metadata/bg/bgkey/manifest_nocodegen.go

@@ -0,0 +1,17 @@
+package bgkey
+
+import (
+	"fmt"
+
+	"github.com/linuxboot/fiano/pkg/intel/metadata/common/pretty"
+)
+
+// Print prints the Key Manifest.
+func (m *Manifest) Print() {
+	if m.KeyAndSignature.Signature.DataTotalSize() < 1 {
+		fmt.Printf("%v\n", m.PrettyString(1, true, pretty.OptionOmitKeySignature(true)))
+		fmt.Printf("  --KeyAndSignature--\n\tKey Manifest not signed!\n\n")
+	} else {
+		fmt.Printf("%v\n", m.PrettyString(1, true, pretty.OptionOmitKeySignature(false)))
+	}
+}

pkg/intel/metadata/bg/crypto_routines.go

@@ -81,3 +81,23 @@ func (a Algorithm) String() string {
 	}
 	return s.String()
 }
+
+func GetAlgFromString(name string) (Algorithm, error) {
+	n := strings.ToUpper(name)
+	switch n {
+	case "ALGUNKNOWN":
+		return AlgUnknown, nil
+	case "RSA":
+		return AlgRSA, nil
+	case "SHA1":
+		return AlgSHA1, nil
+	case "SHA256":
+		return AlgSHA256, nil
+	case "ALGNULL":
+		return AlgNull, nil
+	case "RSASSA":
+		return AlgRSASSA, nil
+	default:
+		return AlgNull, fmt.Errorf("algorithm name provided unknown")
+	}
+}