https://learn.microsoft.com/en-us/dotnet/api/system.security.cryptography.asymmetricalgorithm.keysizevalue?view=netframework-4.8.1&viewFallbackFrom=net-9.0
AsymmetricAlgorithm.KeySizeValue Field (System.Security.Cryptography) | Microsoft Learn
Represents the size, in bits, of the key modulus used by the asymmetric algorithm.
field systemsecuritycryptographymicrosoftlearn