CycloneSSL Commercial License

For proprietary developments

CycloneSSL is available under 3 different commercial license categories for proprietary developments in a commercial context.

CycloneSSL Lite


CycloneSSL Lite is a basic TLS library that supports TLS 1.0, 1.1, 1.2 protocols, with all relevant crypto algorithms included.

CycloneSSL Pro


CycloneSSL Pro is a version of the TLS library that adds support for DTLS 1.0 and 1.2, GCM & CCM cipher modes and Elliptic Curve Cryptography (ECC).

CycloneSSL Ultimate


CycloneSSL Ultimate is a full-featured TLS / DTLS library that supports TLS 1.3 and the most advanced cryptographic algorithms from Daniel J. Bernstein.

SVG Arrow

Detailed feature breakdown
Choose the components that fit to your project!

Matrix Comparison

Commercial Software Packages | v2.4.2

PriceFrom €3,950
Get a Quote
Contact us
Get a Quote
Contact us
Get a Quote
Royalty free & Perpetual license (one-time fee)
Non-GPL license for commercial use with closed source software
Delivery & Service
Source code & Doxygen documentation
Crypto algorithm dependencies from CycloneCRYPTO included
12-month Support & Update Agreement (warranty, technical support, software updates, update notifications, migration guide, bug & security fixing, IP infringement protection)
Basic TLS Features
Client and server mode operation, TLS 1.0, TLS 1.1 & TLS 1.2 support, SSL/TLS session resumption, Diffie-Hellman (DH) key agreement, DSA signature scheme, RSA key agreement, MD5, SHA-1, SHA-256, SHA-384 & SHA-512 hash algorithms, RC4 stream cipher, IDEA, DES, 3DES, AES, ARIA & SEED block ciphers, X.509 certificate parsing, CRL & key parsing
Standard TLS Features & DTLS Support
DTLS 1.0 & DTLS 1.2 support, GCM & CCM ciphers modes (AEAD), Elliptic Curve Cryptography (ECC), ECDH key exchange, ECDSA signature scheme, PSK key exchange mechanism, Raw Public Keys (RPK)
Advanced TLS Features with TLS 1.3 Support
TLS 1.3 support, ChaCha20Poly1305 (AEAD), X25519 and X448 elliptic curves, EdDSA signature scheme (Ed25519 & Ed448), Session tickets, Early data at client side only (TLS 1.3)
Optional Driver
Driver for cryptography acceleration using the hardware capabilities of the MCU
Optional Features
X.509 certificate generation, OSCP client

ACME client (Automatic Certificate Management)
Secure Protocols available using our TCP/IP stack
Secure sockets, FTPS client & server, HTTPS client & server, Secure SMTP client, Secure WebSocket client & server, Secure MQTT client (MQTTS), Secure MQTT-SN client, Secure CoAP client & server, Secure Modbus/TCP client & server

Choose a Commercial License for:



If you develop proprietary commercial applications with closed source, use of a Commercial License is required.


Priority Support

You will have access to priority technical support with software maintenance for updates & security patches.



This license gives the right to develop and modify our software to embed it in your commercial products.


IP Protection

We guarantee that 100% of our commercial software packages have been developed in-house.


Custom Services

Our customers are entitled to fair pricing for custom connectivity related software development or expertise.



All our standard Commercial Licenses are royalty-free licenses (one-time license fee), making licensing easier.