BMA-105

Support for parsing Gost3410x2001 private keys encoded as DER Integer
Miscellaneous support methods ported from Java

1 files changed, 16 insertions, 0 deletions

diff --git a/crypto/src/util/Arrays.cs b/crypto/src/util/Arrays.cs
index a21dd00b1..37da3940f 100644
--- a/crypto/src/util/Arrays.cs
+++ b/crypto/src/util/Arrays.cs
@@ -396,5 +396,21 @@ namespace Org.BouncyCastle.Utilities
             Array.Copy(b, 0, rv, a.Length, b.Length);
             return rv;
         }
+
+        public static byte[] Reverse(byte[] a)
+        {
+            if (a == null)
+                return null;
+
+            int p1 = 0, p2 = a.Length;
+            byte[] result = new byte[p2];
+
+            while (--p2 >= 0)
+            {
+                result[p2] = a[p1++];
+            }
+
+            return result;
+        }
     }
 }