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//------------------------------------------------------------------------------
// <copyright file="StrongNameUtility.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
namespace System.Web.Configuration {
using System.Diagnostics;
using System.IO;
using System.Runtime.InteropServices;
using System.Security.Permissions;
using Microsoft.Runtime.Hosting;
internal class StrongNameUtility {
// Help class shouldn't be instantiated.
private StrongNameUtility() {
}
internal static bool GenerateStrongNameFile(string filename) {
// variables that hold the unmanaged key
IntPtr keyBlob = IntPtr.Zero;
int generatedSize = 0;
// create the key
bool createdKey = StrongNameHelpers.StrongNameKeyGen(null,
0 /*No flags. 1 is to save the key in the key container */,
out keyBlob, out generatedSize);
// if there was a problem, translate it and report it
if (!createdKey || keyBlob == IntPtr.Zero) {
throw Marshal.GetExceptionForHR(StrongNameHelpers.StrongNameErrorInfo());
}
try {
Debug.Assert(keyBlob != IntPtr.Zero);
// make sure the key size makes sense
Debug.Assert(generatedSize > 0 && generatedSize <= Int32.MaxValue);
if (generatedSize <= 0 || generatedSize > Int32.MaxValue) {
throw new InvalidOperationException(SR.GetString(SR.Browser_InvalidStrongNameKey));
}
// get the key into managed memory
byte[] key = new byte[generatedSize];
Marshal.Copy(keyBlob, key, 0, (int)generatedSize);
// write the key to the specified file
using (FileStream snkStream = new FileStream(filename, FileMode.Create, FileAccess.Write)) {
using (BinaryWriter snkWriter = new BinaryWriter(snkStream)) {
snkWriter.Write(key);
}
}
}
finally {
// release the unmanaged memory the key resides in
if (keyBlob != IntPtr.Zero) {
StrongNameHelpers.StrongNameFreeBuffer(keyBlob);
}
}
return true;
}
}
}
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