Adds support for SFTP v5 which improves compatibility with WinSCP client.
Features
- File Server: Added support for SFTP v5 which improves compatibility with WinSCP client, this requires SFTP v5 to enable File Hashing extension that makes it possible to calculate checksums of remote files.
- File System: MountCapableFileSystemProvider's FileSystemNotifier now raises GetAttributesPreview, GetAttributesSurrogate and GetAttributesCompleted events for mounted directories.
- TLS Core: Added SslSettings.SetPreferredSuites/GetPreferredSuites methods to make it possible to specify client-side TLS cipher preference.
- TLS Core: Improved logging when remote party does not support TLS 1.3.
- TLS Core: Optimized TlsSocket.Negotiate method when TLS 1.3 is enabled but not supported by the remote side.
- Cryptography: Added support for private keys using PBKDF2 with HMAC/SHA-2 (RFC 8018 / PKCS #5 v2.1).
- Cryptography: Optimized creation of the algorithm objects in CNG layer.
