CycloneSCEP
SCEP Client Library
CycloneSCEP is an SCEP (Simple Certificate Enrolment Protocol) client implementation designed for embedded applications. Originally developed by Cisco and later standardized in RFC 8894, SCEP offers an easy way to request and renew X.509 certificates. SCEP automates certificate enrollment, reducing manual effort and effectively supporting large-scale deployments.
CycloneSCEP is available either as open source (GPLv2 license) or under a royalty-free commercial license (non-GPL license). We also propose an evaluation license (90-day license in source form) with technical support for an easier onboarding and effective evaluation of our software.
Main Features
- SCEP protocol implementation as per RFC 8894
- Client mode of operation
- Certificate management (enrollment and renewal operations)
- Supports RSA certificates
- Comprehensive user API
- Flexible memory footprint. Built-time configuration to embed only the necessary features
- Portable architecture (no processor dependencies)
- The library is distributed as a full ANSI C and highly maintainable source code
- ARM Cortex-M3
- ARM Cortex-M4
- ARM Cortex-M7
- ARM Cortex-M33
- ARM Cortex-M55
- ARM Cortex-M85
- ARM Cortex-R4
- ARM Cortex-A5
- ARM Cortex-A7
- ARM Cortex-A8
- ARM Cortex-A9
- Legacy ARM7TDMI / ARM926EJ-S
- RISC-V
- MIPS M4K
- MIPS microAptiv / M-Class
- Infineon TriCore AURIX
- PowerPC e200
- Coldfire V2
- RX600
- AVR32
- Xtensa LX6
- Amazon FreeRTOS
- SafeRTOS
- ChibiOS/RT
- CMSIS-RTOS
- CMSIS-RTOS2
- CMX-RTX
- Keil RTXv4 and RTXv5
- Micrium µC/OS-II and µC/OS-III
- Eclipse ThreadX
- PX5 RTOS
- Segger embOS
- TI-RTOS (SYS/BIOS)
- Zephyr RTOS
- Bare Metal programming (without RTOS)
| Toolchain / IDE | Compiler |
|---|---|
| Makefile | GCC |
| AC6 System Workbench for STM32 (SW4STM32) | GCC |
| Atollic TrueSTUDIO | GCC |
| Espressif ESP-IDF | GCC |
| HighTec Toolset for TriCore | GCC |
| IAR Embedded Workbench | EWARM, EWRX |
| Infineon DAVE | GCC |
| Keil MDK-ARM | ARM Compiler v5, ARM Compiler v6 (CLANG) |
| Microchip Studio (Atmel Studio) | GCC |
| Microchip MPLAB X | GCC, XC32 |
| Microsoft Visual Studio | MSVC |
| NXP MCUXpresso | GCC |
| NXP S32 Design Studio (S32DS) | GCC |
| Renesas e2Studio | GCC, CC-RX |
| Segger Embedded Studio | GCC |
| ST STM32CubeIDE | GCC |
| Tasking VX-Toolset | VX-Toolset for TriCore |
| TI Code Composer Studio (CSS) | GCC, ARM-CGT |