using System;
using System.Security.Cryptography;

namespace Mono.Security.Cryptography
{
	// Token: 0x020000A3 RID: 163
	internal class BlockProcessor
	{
		// Token: 0x060008EB RID: 2283 RVA: 0x00023098 File Offset: 0x00021298
		public BlockProcessor(ICryptoTransform transform)
			: this(transform, transform.InputBlockSize)
		{
		}

		// Token: 0x060008EC RID: 2284 RVA: 0x000230A8 File Offset: 0x000212A8
		public BlockProcessor(ICryptoTransform transform, int blockSize)
		{
			this.transform = transform;
			this.blockSize = blockSize;
			this.block = new byte[blockSize];
		}

		// Token: 0x060008ED RID: 2285 RVA: 0x000230D8 File Offset: 0x000212D8
		~BlockProcessor()
		{
			Array.Clear(this.block, 0, this.blockSize);
		}

		// Token: 0x060008EE RID: 2286 RVA: 0x00023120 File Offset: 0x00021320
		public void Initialize()
		{
			Array.Clear(this.block, 0, this.blockSize);
			this.blockCount = 0;
		}

		// Token: 0x060008EF RID: 2287 RVA: 0x0002313C File Offset: 0x0002133C
		public void Core(byte[] rgb)
		{
			this.Core(rgb, 0, rgb.Length);
		}

		// Token: 0x060008F0 RID: 2288 RVA: 0x0002314C File Offset: 0x0002134C
		public void Core(byte[] rgb, int ib, int cb)
		{
			int num = Math.Min(this.blockSize - this.blockCount, cb);
			Buffer.BlockCopy(rgb, ib, this.block, this.blockCount, num);
			this.blockCount += num;
			if (this.blockCount == this.blockSize)
			{
				this.transform.TransformBlock(this.block, 0, this.blockSize, this.block, 0);
				int num2 = (cb - num) / this.blockSize;
				for (int i = 0; i < num2; i++)
				{
					this.transform.TransformBlock(rgb, num + ib, this.blockSize, this.block, 0);
					num += this.blockSize;
				}
				this.blockCount = cb - num;
				if (this.blockCount > 0)
				{
					Buffer.BlockCopy(rgb, num + ib, this.block, 0, this.blockCount);
				}
			}
		}

		// Token: 0x060008F1 RID: 2289 RVA: 0x00023230 File Offset: 0x00021430
		public byte[] Final()
		{
			return this.transform.TransformFinalBlock(this.block, 0, this.blockCount);
		}

		// Token: 0x040001DB RID: 475
		private ICryptoTransform transform;

		// Token: 0x040001DC RID: 476
		private byte[] block;

		// Token: 0x040001DD RID: 477
		private int blockSize;

		// Token: 0x040001DE RID: 478
		private int blockCount;
	}
}