feat: Add CryptoArrayPool

Author: HMBSbige

src/CryptoBase/CryptoArrayPool.cs

@@ -0,0 +1,18 @@
+namespace CryptoBase;
+
+public sealed class CryptoArrayPool<T>(int length) : IDisposable where T : struct
+{
+	public readonly T[] Array = ArrayPool<T>.Shared.Rent(length);
+
+	[MethodImpl(MethodImplOptions.AggressiveInlining)]
+	public Span<T> GetSpan()
+	{
+		return Array.AsSpan(0, length);
+	}
+
+	public void Dispose()
+	{
+		CryptographicOperations.ZeroMemory(MemoryMarshal.AsBytes(GetSpan()));
+		ArrayPool<T>.Shared.Return(Array);
+	}
+}

src/CryptoBase/CryptoBuffer.cs

@@ -1,5 +1,3 @@
-using System.Security.Cryptography;
-
 namespace CryptoBase;
 
 public readonly ref struct CryptoBuffer : IDisposable

src/CryptoBase/Digests/DefaultDigest.cs

@@ -1,5 +1,3 @@
-using System.Security.Cryptography;
-
 namespace CryptoBase.Digests;
 
 public abstract class DefaultDigest : IHash

src/CryptoBase/Digests/MD5/DefaultMD5Digest.cs

@@ -1,5 +1,3 @@
-using System.Security.Cryptography;
-
 namespace CryptoBase.Digests.MD5;
 
 public class DefaultMD5Digest : DefaultDigest

src/CryptoBase/Digests/SHA1/DefaultSHA1Digest.cs

@@ -1,5 +1,3 @@
-using System.Security.Cryptography;
-
 namespace CryptoBase.Digests.SHA1;
 
 public class DefaultSHA1Digest : DefaultDigest

src/CryptoBase/Digests/SHA256/DefaultSHA256Digest.cs

@@ -1,5 +1,3 @@
-using System.Security.Cryptography;
-
 namespace CryptoBase.Digests.SHA256;
 
 public class DefaultSHA256Digest : DefaultDigest

src/CryptoBase/Digests/SHA384/DefaultSHA384Digest.cs

@@ -1,5 +1,3 @@
-using System.Security.Cryptography;
-
 namespace CryptoBase.Digests.SHA384;
 
 public class DefaultSHA384Digest : DefaultDigest

src/CryptoBase/Digests/SHA512/DefaultSHA512Digest.cs

@@ -1,5 +1,3 @@
-using System.Security.Cryptography;
-
 namespace CryptoBase.Digests.SHA512;
 
 public class DefaultSHA512Digest : DefaultDigest

src/CryptoBase/KDF/Hkdf.cs

@@ -1,7 +1,6 @@
 using CryptoBase.Abstractions;
 using CryptoBase.Digests;
 using CryptoBase.Macs.Hmac;
-using System.Security.Cryptography;
 
 namespace CryptoBase.KDF;
 

src/CryptoBase/Macs/Hmac/DefaultHmac.cs

@@ -1,5 +1,4 @@
 using CryptoBase.Abstractions;
-using System.Security.Cryptography;
 
 namespace CryptoBase.Macs.Hmac;