From e6a6ebb87d5b5bff406177cbe36ab56d3ad72826 Mon Sep 17 00:00:00 2001
From: Andrew Osmond <aosmond@gmail.com>
Date: Tue, 4 Apr 2017 15:34:31 -0400
Subject: Add new EC/PKEY methods to permit deriving shared secrets.

---
 openssl/src/ec.rs | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'openssl/src/ec.rs')

diff --git a/openssl/src/ec.rs b/openssl/src/ec.rs
index 37815021..33c15569 100644
--- a/openssl/src/ec.rs
+++ b/openssl/src/ec.rs
@@ -314,6 +314,10 @@ impl EcKeyRef {
     pub fn check_key(&self) -> Result<(), ErrorStack> {
         unsafe { cvt(ffi::EC_KEY_check_key(self.as_ptr())).map(|_| ()) }
     }
+
+    pub fn to_owned(&self) -> Result<EcKey, ErrorStack> {
+        unsafe { cvt_p(ffi::EC_KEY_dup(self.as_ptr())).map(EcKey) }
+    }
 }
 
 impl EcKey {
@@ -440,6 +444,13 @@ mod test {
         key.private_key().unwrap();
     }
 
+    #[test]
+    fn dup() {
+        let group = EcGroup::from_curve_name(nid::X9_62_PRIME256V1).unwrap();
+        let key = EcKey::generate(&group).unwrap();
+        key.to_owned().unwrap();
+    }
+
     #[test]
     fn point_new() {
         let group = EcGroup::from_curve_name(nid::X9_62_PRIME256V1).unwrap();
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