From 8ead0babeb7faa226b297e5c3155c19a7e9d066b Mon Sep 17 00:00:00 2001
From: Sergey Abramchuk <ss.abramchuk@gmail.com>
Date: Thu, 7 Sep 2017 14:26:05 +0300
Subject: [PATCH] Return size of the key in bits

---
 OpenVPN Adapter/OpenVPNPrivateKey.h | 2 ++
 OpenVPN Adapter/OpenVPNPrivateKey.m | 4 ++++
 2 files changed, 6 insertions(+)

diff --git a/OpenVPN Adapter/OpenVPNPrivateKey.h b/OpenVPN Adapter/OpenVPNPrivateKey.h
index 9157862..eeda4ec 100644
--- a/OpenVPN Adapter/OpenVPNPrivateKey.h	
+++ b/OpenVPN Adapter/OpenVPNPrivateKey.h	
@@ -20,6 +20,8 @@
 
 - (nonnull instancetype) __unavailable init;
 
+@property (nonatomic, readonly) NSInteger size;
+
 - (nullable NSData *)pemData:(out NSError * __nullable * __nullable)error;
 - (nullable NSData *)derData:(out NSError * __nullable * __nullable)error;
 
diff --git a/OpenVPN Adapter/OpenVPNPrivateKey.m b/OpenVPN Adapter/OpenVPNPrivateKey.m
index 4963e3f..a72d3e0 100644
--- a/OpenVPN Adapter/OpenVPNPrivateKey.m	
+++ b/OpenVPN Adapter/OpenVPNPrivateKey.m	
@@ -29,6 +29,10 @@
     return self;
 }
 
+- (NSInteger)size {
+    return mbedtls_pk_get_bitlen(self.ctx);
+}
+
 + (nullable OpenVPNPrivateKey *)keyWithPEM:(NSData *)pemData password:(NSString *)password error:(out NSError **)error {
     OpenVPNPrivateKey *key = [OpenVPNPrivateKey new];