/// <summary>
/// Create a public key token from a signed assembly
/// </summary>
/// <exception cref="ArgumentNullException">
/// If <paramref name="filePath"/> is null
/// </exception>
/// <exception cref="ArgumentException">
/// If <paramref name="filePath"/> is empty
/// </exception>
/// <exception cref="InvalidOperationException">
/// If the token could not be generated
/// </exception>
/// <param name="filePath">assembly to generate the token of</param>
/// <returns>public key token of <paramref name="filePath"/></returns>
public static byte[] CreateTokenFromAssembly(string filePath)
{
if (string.IsNullOrEmpty(filePath))
{
throw new ArgumentNullOrEmptyException("filePath");
}
// get the key and token
IntPtr blobBuffer = IntPtr.Zero;
IntPtr tokenBuffer = IntPtr.Zero;
try
{
int blobSize = 0;
int tokenSize = 0;
// extract the public key token
if (!StrongNameNative.StrongNameTokenFromAssemblyEx(
filePath, out tokenBuffer, out tokenSize, out blobBuffer, out blobSize))
{
Marshal.ThrowExceptionForHR(StrongNameNative.StrongNameErrorInfo());
}
// copy the token out of unmanaged memory, and return it
byte[] token = new byte[tokenSize];
Marshal.Copy(tokenBuffer, token, 0, tokenSize);
return(token);
}
finally
{
if (blobBuffer != IntPtr.Zero)
{
StrongNameNative.StrongNameFreeBuffer(blobBuffer);
}
if (tokenBuffer != IntPtr.Zero)
{
StrongNameNative.StrongNameFreeBuffer(tokenBuffer);
}
}
}
