tinysshd is a minimalistic SSH server which implements only a subset of SSHv2 features.
tinysshd supports only secure cryptography (minimum 128-bit security, protected against cache-timing attacks). tinysshd doesn’t implement older crypto (such as RSA, DSA, HMAC-MD5, MAC-SHA1, 3DES, RC4, …). tinysshd doesn’t implement unsafe features (such as password or hostbased authentication)
tinysshd doesn’t have features such: SSH1 protocol, compression, port forwarding, agent forwarding, X11 forwarding …
tinysshd doesn’t use dynamic memory allocation (no allocation failures, etc.)
Key Features
- Easy auditable – TinySSH has less than 100000 words of code.
- No dynamic memory allocation – TinySSH has all memory statically allocated (less than 1MB).
- Simple configuration – TinySSH can’t be misconfigured.
- Reusing code – TinySSH is reusing libraries from CurveCP implementation.
- Reusing software – TinySSH is using tcpserver/systemd socket/inetd for TCP connection.
- Limited amount of features – TinySSH doesn’t have features such: SSH1 protocol, compression, …
- No older cryptographic primitives – rsa, dsa, classic diffie-hellman, hmac-md5, hmac-sha1, 3des, arcfour, …
- No copyright restrictions – TinySSH is in the public domain.
- No dependency on OpenSSL – TinySSH has its own crypto library compatible with NaCl, Libsodium.
- Speed – TinySSH can be also compiled using high-speed NaCl library instead of internal.
Website: github.com/janmojzis/tinyssh
Support:
Developer: Jan Mojžíš
License: Public Domain
TinySSH is written in C and C++. Learn C with our recommended free books and free tutorials. Learn C++ with our recommended free books and free tutorials.
Related Software
| SSH Servers | |
|---|---|
| OpenSSH | Remote login with the SSH protocol |
| Teleport | Provides connectivity, authentication, access controls and audit for infrastructure |
| ssh3 | Faster and rich secure shell using HTTP/3 |
| TinySSH | Minimalistic SSH server |
| Dropbear | Lightweight SSH server |
| quicssh-rs | Simple ssh server |
| ssh2incus | SSH server for Incus instances |
| Russh | Low-level Tokio SSH2 client and server implementation |
| wolfSSH | Small, fast, portable SSH implementation |
Read our verdict in the software roundup.
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