Span-based variant for IBlockCipher.ProcessBlock

1 files changed, 9 insertions, 0 deletions

diff --git a/crypto/test/src/crypto/prng/test/CtrDrbgTest.cs b/crypto/test/src/crypto/prng/test/CtrDrbgTest.cs
index 65209abdb..3e90c5752 100644
--- a/crypto/test/src/crypto/prng/test/CtrDrbgTest.cs
+++ b/crypto/test/src/crypto/prng/test/CtrDrbgTest.cs
@@ -512,6 +512,15 @@ namespace Org.BouncyCastle.Crypto.Prng.Test
                 return cipher.ProcessBlock(input, inOff, output, outOff);
             }
 
+            // NOTE: .NET Core 2.1 has Span<T>, but is tested against our .NET Standard 2.0 assembly.
+//#if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER
+#if NET6_0_OR_GREATER || NETSTANDARD2_1_OR_GREATER
+            public int ProcessBlock(ReadOnlySpan<byte> input, Span<byte> output)
+            {
+                return cipher.ProcessBlock(input, output);
+            }
+#endif
+
             public void Reset()
             {
                 cipher.Reset();