Released: Apr 8, 2024

Updates in 7.0.8865

Features

• TLS Core: Added the option to disable ClientHello padding.
• TLS Core: Added the option to enable legacy SCSV mode.
• Cryptography: Added support for loading private keys in new OpenSSH key format encrypted using AES/GCM or ChaCha20/Poly1305.

Fixes

• SSH: SshPublicKey.LoadPublicKeys reads comments and does not fail on empty files.
• TLS Core: Fixed potential repeated clean-up of TLS extensions that might cause strange exceptions in the following TLS connection.

Released: Feb 19, 2024

Updates in 7.0.8816

Features

• FTP: Strict session closure with TLS 1.3 data connections are now used by default.
• SSH: Added new SshCipher.StrictKeyExchange and SshServerInfo.SupportsStrictKeyExchange properties.
• SSH: Added new SshPrivateKey.CreateFrom(PrivateKeyInfo) method.
• SSH: Added support for a combination of password and keyboard-interactive authentication.
• SSH: Improved SSH session and channel lifecycle logging.
• SSH: Now uses lower local SSH channel numbers for better log readability.
• Cryptography: Added low...

Released: Dec 20, 2023

Updates in 7.0.8755

Features

• Improved compatibility with Native AOT (ahead-of-time) deployment model in Microsoft .NET 8.
• SSH: Added support for PKCS #8 format to SshPublicKey constructor.
• SSH: Added support for strict key exchange extension (thwarts the so-called 'Terrapin attack').
• Common: Optimized memory usage of miscellaneous methods.

Released: Nov 15, 2023

Updates in 7.0.8720

Features

• Added a new set of binaries targeting Microsoft .NET 8.0.
• FTP: Improved FTP data channel PSK ticket usage with TLS 1.3.
• SSH: Added SshParameters.ChannelCloseTimeout property.

Fixes

• FTP: Fixed handling of small port ranges in active mode.
• Cryptography: Fixed behavior of certificate issuer API when no CRLs have been specified.

Released: Sep 13, 2023

Updates in 7.0.8657

Fixes

• Networking: Fixed handling of IPv6 addresses in square brackets.
• SSH: Fixed behavior of Certificate flag in SshParameters.HostKeyAlgorithms.

Released: Jun 29, 2023

Updates in 7.0.8581

Features

• Networking: Added SslSettings.SslRenegotiationMode option.
• Networking: No longer sending default domain in SSPI requests by default. Added new SslSettings.UseDefaultDomain property.
• SSH: Added SshPublicKey.Parse method and a new overload for SshPublicKey.LoadPublicKeys.
• SSH: Added support for ECDH and ECDSA with secp256k1 curve ('ecdh-sha2-1.3.132.0.10' and 'ecdsa-sha2-1.3.132.0.10').
• SSH: Added support for SSH agents (OpenSSH agent and Pageant).
• SSH: Now prefers ChaCha20/Poly1305 on...

Released: Jun 28, 2023

Updates in R6.14

Fixes

• All: Fixed problems in finalizer logic.
• FTP: Fixed active mode transfers with servers that use TLS 1.3 and send NewSessionTicket late.
• FTP: Fixed possible (but very rare) NullReferenceException while aborting a data transfer.
• SSH: Fixed missing end-of-lines in new OpenSSH key format.
• Cryptography: Fixed support for ECDSA private key formats with optional public key.

Released: Jun 6, 2023

Updates in R6.13

Features

• Networking: Added support for IPv6 addresses to SOCKS5 proxy (client-side).
• Cryptography: Improved support for SignatureHashAlgorithm.MD5SHA1 in Microsoft .NET 5 and higher in FIPS-only mode.
• Networking: You can now use 'Proxy-Connection' header instead of 'Connection' with HTTP CONNECT proxies.

Fixes

• Networking: Added workaround for systems where System.​Net.​Sockets.​Socket.​RemoteEndPoint does not work properly.
• Networking: Fixed formatting of IPv6 addresses for HTTP CONNECT proxies...

Released: Apr 18, 2023

Updates in R6.12

Fixes

• FTP: The local endpoint of FTP data socket is bound to that of control socket.
• SSH: Added workaround for an issue in 'srt SSH Server' that makes it reject RSA/SHA-2 public key authentication attempts.
• SSH: Fixed handling of SSH2 PUBLIC KEY quotation marks in SshPublicKey.
• SSH: Fixed handling of user name when performing single sign-on in .NET Core and .NET 5/6/7.
• TLS Core: Fixed client-side TLS cipher suite check and server-side TLS cipher selection.
• TLS Core: Fixed checking of selected...

Released: Jan 31, 2023

Updates in R6.11

Features

• Common: Improved compatibility with Microsoft Windows 2000.

Fixes

• Networking: Comment is no longer ignored when loading SSH2 public key into SshPublicKey.
• SSH: Fixed occasional StackOverflowException in SSH tunnel code (thrown when a large batch of consecutive asynchronous IO operations completes synchronously).
• TLS Core: Fixed handling of missing close_notify message in TLS 1.2 or earlier.
• Cryptography: Fixed CRL retrieval for certificate with multiple CRL distribution endpoints...