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authorPeter Dettman <peter.dettman@bouncycastle.org>2019-10-23 15:14:32 +0700
committerPeter Dettman <peter.dettman@bouncycastle.org>2019-10-23 15:14:32 +0700
commite602a69f7523bb60ce3c8770bc2340f79a39a7ae (patch)
tree8ddb5beec0f6ac8eb7990ac465e5d157dd6cde1c /crypto/src/util
parentAdd ChaCha ciphers to factory classes (diff)
downloadBouncyCastle.NET-ed25519-e602a69f7523bb60ce3c8770bc2340f79a39a7ae.tar.xz
Improve ChaCha20Poly1305 tests
- focused on processing array sub-ranges
Diffstat (limited to 'crypto/src/util')
-rw-r--r--crypto/src/util/Arrays.cs21
1 files changed, 18 insertions, 3 deletions
diff --git a/crypto/src/util/Arrays.cs b/crypto/src/util/Arrays.cs
index 6f2503d2d..7b1766bba 100644
--- a/crypto/src/util/Arrays.cs
+++ b/crypto/src/util/Arrays.cs
@@ -53,9 +53,7 @@ namespace Org.BouncyCastle.Utilities
         /// <param name="a">Left side.</param>
         /// <param name="b">Right side.</param>
         /// <returns>True if equal.</returns>
-        public static bool AreEqual(
-            byte[]	a,
-            byte[]	b)
+        public static bool AreEqual(byte[] a, byte[] b)
         {
             if (a == b)
                 return true;
@@ -66,6 +64,23 @@ namespace Org.BouncyCastle.Utilities
             return HaveSameContents(a, b);
         }
 
+        public static bool AreEqual(byte[] a, int aFromIndex, int aToIndex, byte[] b, int bFromIndex, int bToIndex)
+        {
+            int aLength = aToIndex - aFromIndex;
+            int bLength = bToIndex - bFromIndex;
+
+            if (aLength != bLength)
+                return false;
+
+            for (int i = 0; i < aLength; ++i)
+            {
+                if (a[aFromIndex + i] != b[bFromIndex + i])
+                    return false;
+            }
+
+            return true;
+        }
+
         [Obsolete("Use 'AreEqual' method instead")]
         public static bool AreSame(
             byte[]	a,