fix(core): update

ts/smartcrypto.classes.publickey.ts

@@ -21,4 +21,8 @@ export class PublicKey {
   public toPemString(): string {
     return plugins.nodeForge.pki.publicKeyToPem(this.forgePublicKey);
   }
+
+  public toOpenSSH(): string {
+    return plugins.nodeForge.ssh.publicKeyToOpenSSH(this.forgePublicKey, 'user@host');
+  }
 }