Version 1.4.18 brings with it bug fixes, new features, and some enhancements as well! New features in this release include new algorithms and a memory configuration option.

We also have a nice round of enhancements which range from channel setup callbacks, better testing, improved portability, and more!

New Features

• wolfSSL style static memory pool allocation support.

• Ed25519 public key support.

• Banner option for wolfSSHd configuration.

• Non-blocking socket support to the example SCP client.

Improvements

• Documentation updates.

• Update the Zephyr test action.

• Add a no-filesystem build to the Zephyr port.

• Update the macOS test action.

• Refactor certificate processing. Only verify certificates when a signature is present.

• Update the Kyber test action.

• Refactor the Curve25519 Key Agreement support.

• Update the STM32Cube Pack.

• Increase the memory that Zephyr uses for a heap for testing.

• Add a macro wrapper to replace the ReadDir function.

• Add callback hook for keying completion.

• Add function to return strings for the names of algorithms.

• Add asynchronous server side user authentication.

• Add ssh-rsa (SHA-1) to the default user auth algorithm list when sha1-soft-disable is disabled.

• Update Espressif examples using Managed Components.

• Add SCP test case.

• Refactor RSA sign and verify.

• Refresh the example echoserver with updates from wolfSSHd.

• Add callback hooks for most channel messages including open, close, success, fail, and requests.

• Reduce the number of memory allocations SCP makes.

• Improve wolfSSHd’s behavior on closing a connection. It closes channels and waits for the peer to close the channels.

Fixes

• Refactor wolfSSHd service support for Windows to fix PowerShell Write-Progress.

• Fix partial success case with public key user authentication.

• Fix the build guards with respect to cannedKeyAlgoNames.

• Error if unable to open the local file when doing a SCP send.

• Fix some IPv6 related build issues.

• Add better checks for SCP error returns for closed channels.

• In the example SCP client, move the public key check context after the WOLFSSH object is created.

• Fix error reporting for wolfSSH_SFTP_STAT.

• In the example SCP client, fix error code checking on shutdown.

• Change return from wolfSSH_shutdown() to WS_CHANNEL_CLOSED.

• Fix SFTP symlink handling.

• Fix variable initialization warnings for Zephyr builds.

• Fix wolfSSHd case of non-console output handles.

• Fix testsuite for single threaded builds. Add single threaded test action.

• Fix wolfSSHd shutting down on fcntl() failure.

• Fix wolfSSHd on Windows handling virtual terminal sequences using exec commands.

• Fix possible null dereference when matching MAC algos during key exchange.

Visit our download page (https://www.wolfssl.com/download/) or wolfSSH GitHub repository (https://github.com/wolfSSL/wolfssh) to download the release bundle, and feel free to email us at facts@wolfssl.com or support@wolfssl.com or call us at +1 425 245 8247 with any questions about the wolfSSH embedded SSH library or other products.
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