feat: migrated the operator code to v4

k8-operator/internal/template/jwk.go

@@ -0,0 +1,43 @@
+package template
+
+import (
+	"crypto/x509"
+	"fmt"
+
+	"github.com/lestrrat-go/jwx/v2/jwk"
+)
+
+func jwkPublicKeyPem(jwkjson string) string {
+	k, err := jwk.ParseKey([]byte(jwkjson))
+	if err != nil {
+		panic(fmt.Sprintf("[jwkPublicKeyPem] Error: %v", err))
+	}
+	var rawkey any
+	err = k.Raw(&rawkey)
+	if err != nil {
+		panic(fmt.Sprintf("[jwkPublicKeyPem] Error: %v", err))
+	}
+	mpk, err := x509.MarshalPKIXPublicKey(rawkey)
+	if err != nil {
+		panic(fmt.Sprintf("[jwkPublicKeyPem] Error: %v", err))
+	}
+	return pemEncode(mpk, "PUBLIC KEY")
+}
+
+func jwkPrivateKeyPem(jwkjson string) string {
+	k, err := jwk.ParseKey([]byte(jwkjson))
+	if err != nil {
+		panic(fmt.Sprintf("[jwkPrivateKeyPem] Error: %v", err))
+	}
+	var mpk []byte
+	var pk any
+	err = k.Raw(&pk)
+	if err != nil {
+		panic(fmt.Sprintf("[jwkPrivateKeyPem] Error: %v", err))
+	}
+	mpk, err = x509.MarshalPKCS8PrivateKey(pk)
+	if err != nil {
+		panic(fmt.Sprintf("[jwkPrivateKeyPem] Error: %v", err))
+	}
+	return pemEncode(mpk, "PRIVATE KEY")
+}