[#11] Add Network Snapshot

Signed-off-by: Pavel Gross <p.gross@yadro.com>

src/FrostFS.SDK.Cryptography/Extentions.cs

@@ -0,0 +1,54 @@
+using Google.Protobuf;
+using Org.BouncyCastle.Crypto.Digests;
+using System;
+using System.Buffers.Binary;
+using System.Security.Cryptography;
+
+namespace FrostFS.SDK.Cryptography;
+
+public static class Extentions
+{
+    internal static byte[] RIPEMD160(this byte[] value)
+    {
+        var hash = new byte[20];
+
+        var digest = new RipeMD160Digest();
+        digest.BlockUpdate(value, 0, value.Length);
+        digest.DoFinal(hash, 0);
+        return hash;
+    }
+
+    public static byte[] Sha256(this byte[] value)
+    {
+        using var sha256 = SHA256.Create();
+        return sha256.ComputeHash(value);
+    }
+
+    internal static byte[] Sha256(this byte[] value, int offset, int count)
+    {
+        using var sha256 = SHA256.Create();
+        return sha256.ComputeHash(value, offset, count);
+    }
+
+    internal static byte[] Sha256(this ReadOnlySpan<byte> value)
+    {
+        using var sha256 = SHA256.Create();
+        return sha256.ComputeHash(value.ToArray());
+    }
+
+    public static ByteString Sha256(this IMessage data)
+    {
+        return ByteString.CopyFrom(data.ToByteArray().Sha256());
+    }
+
+    public static ByteString Sha256(this ByteString data)
+    {
+        return ByteString.CopyFrom(data.ToByteArray().Sha256());
+    }
+   
+    public static ulong Murmur64(this byte[] value, uint seed)
+    {
+        using var murmur = new Murmur3_128(seed);
+        return BinaryPrimitives.ReadUInt64LittleEndian(murmur.ComputeHash(value));
+    }
+}