ECB is weak and not used anywhere.

Author: scott-xu

src/Renci.SshNet/Security/Cryptography/Cipher.cs

@@ -19,7 +19,7 @@ public abstract class Cipher
         /// <summary>
         /// Gets the block size.
         /// </summary>
-        public int BlockSize
+        public byte BlockSize
         {
             get
             {

test/Renci.SshNet.Benchmarks/Security/Cryptography/Ciphers/AesCipherBenchmarks.cs

@@ -48,17 +48,5 @@ public byte[] Decrypt_CTR()
         {
             return new AesCtrCipher(_key, _iv).Decrypt(_data);
         }
-
-        [Benchmark]
-        public byte[] Encrypt_ECB()
-        {
-            return new AesCipher(_key, null, CipherMode.ECB, false).Encrypt(_data);
-        }
-
-        [Benchmark]
-        public byte[] Decrypt_ECB()
-        {
-            return new AesCipher(_key, null, CipherMode.ECB, false).Decrypt(_data);
-        }
     }
 }