internal static ImmutableArray<byte> ComputeSha1(Stream stream)
{
if (stream != null)
{
stream.Seek(0, SeekOrigin.Begin);
using (var hashProvider = new SHA1CryptoServiceProvider())
{
return ImmutableArray.Create(hashProvider.ComputeHash(stream));
}
}
return ImmutableArray<byte>.Empty;
}
internal static ImmutableArray<byte> ComputeSha1(byte[] bytes)
{
using (var hashProvider = new SHA1CryptoServiceProvider())
{
return ImmutableArray.Create(hashProvider.ComputeHash(bytes));
}
}
private byte[] TryComputeFileHash(string filePath)
{
try
{
using (var cryptoProvider = new SHA1CryptoServiceProvider())
using (var stream = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.Read | FileShare.Delete))
{
return cryptoProvider.ComputeHash(stream);
}
}
catch { }
return null;
}