Released: Sep 30, 2020

2020 R4 での更新項目

機能

• All: Rebex assemblies targeting Microsoft .NET Standard 2.1 have been fully tested on Microsoft .NET 5.0 RC1 and are suitable to be used in production on Microsoft's latest .NET platform.
• File Server: Added Length property to the NodeContent class.
• File Server: Added OriginalNode property to FileSystemNotifier.RenameCompleted event argument.
• File Server: Added SaveContentPreview, SaveContentSurrogate and SaveContentCompleted events to virtual file systems.
• File Server: Added workarounds for incompatibilities in SSH renegotiation with JSCH, SSH.NET and very old OpenSSH.
• File Server: Enhanced FileServer infrastructure API to make it possible to start SFTP/SSH session on a pre-connected Socket.
• File Server: Enhanced virtual shell's mkdir command to support '-p' option.
• EWS: Added Ews.Settings.ExpectContinueSizeThreshold option.
• EWS: Added the ability to use EWS X-AnchorMailbox HTTP header to maintain mailbox affinity.
• HTTP: Added HttpRequest.CookieContainer and HttpResponse.Cookies properties.
• HTTP: Improved TLS session cache behavior in scenarios with load balancing servers.
• TLS Core: Updated TlsCipherSuite.Secure/Weak/Fast enum values. Updated TlsParameters.AllowedSuite default.
• TLS: Added more AuthenticateAsClientAsync/AuthenticateAsServerAsync overloads.
• Cryptography: Added Ed25519 support to Certificate class. (Not yet supported by the built-in certificate validator due to lack of support in Microsoft Windows and Microsoft .NET).
• Cryptography: Prohibited usage of Chacha20/Poly1305 in TLS 1.3 in FIPS-only mode. (Already prohibited in TLS 1.2 or earlier.)
• Cryptography: Updated RSAManaged constructor logic to make it suitable as a base for derived classes on Microsoft .NET Framework in FIPS-compliant mode.
• Cryptography: Added the ability to use Microsoft Windows CNG API for Diffie-Hellman parameter generation on Microsoft Windows 10 and Windows Server 2016/2019.
• Common: Optimized internal cancellation infrastructure on old platforms.
• Common: Removed usage of BinaryFormatter which has been found to be insecure.
• Common: Updated EncodingTools.GetEncoding method to prefer encodings provided by Microsoft .NET.
• Syslog: Added support for Syslog over TLS.
• Syslog: SyslogServer class now closes active connections when Stop() metod is called.

不具合の修正

• All: Fixed several minor compatibility issues on .NET 5.0 RC1.
• FTP: Fixed culture-specific handling of DateTime in Ftp.SetFileDateTime method.
• File Server: Fixed algorithm support check when adding an Ed25519 key to FileServer.Keys collection.
• File Server: Fixed behavior of SSH_FXP_MKDIR on non-Windows operating systems.
• Time: Fixed wrong platform check in SystemClock (caused NotSupportedException).
• Security: Fixed behavior of XtsStream.CanSeek and CanRead properties.
• Networking: Restored missing NetworkSession.InstanceId property.
• TLS Core: Fixed concurrent access in server-side TLS session cache.
• TLS Core: Fixed normalization of premaster secret in server-side ECDH calculations in TLS 1.2 and earlier.
• Cryptography: Fixed handling of non-content data in Certificate(byte[]) constructor and CertificateChain.LoadP7b(Stream)/certificateRevocationList.Load(Stream) methods.
• Cryptography: Fixed parsing of constructed primitive ASN.1 types with more than two layers of nesting.
• Cryptography: Fixed version number in PKCS #10 CertificationRequest structure.
• Syslog: Fixed behavior of SyslogServer(string serverName, int port).