This repository was archived by the owner on Dec 14, 2018. It is now read-only.
This repository was archived by the owner on Dec 14, 2018. It is now read-only.
Enable SHA256.Create() calls to work for desktop applications on FIPS compliant machines. #6354
Description
When unnetcoreappifying our libraries we didn't also enable our SHA256.Create() implementations to work under the desktop framework. To do this you need to change SHA256.Create() the to the following:
public static SHA256 CreateSHA256()
{
SHA256 sha256;
try
{
sha256 = SHA256.Create();
}
// SHA256.Create is documented to throw this exception on FIPS compliant machines.
// See: https://msdn.microsoft.com/en-us/library/z08hz7ad%28v=vs.110%29.aspx?f=255&MSPPError=-2147217396
catch (System.Reflection.TargetInvocationException)
{
// Fallback to a FIPS compliant SHA256 algorithm.
sha256 = new SHA256CryptoServiceProvider();
}
return sha256;
}