wolfSSL Yocto Project Recipe

The wolfSSL embedded SSL/TLS library is highly portable, and easy to build on many different platforms. One of these platforms includes the Yocto Project, a project that assists developers with creating Linux-based systems on any architecture.

wolfSSL also includes many recipes and projects that make it easy to build on various platforms, and is maintained in the meta-wolfssl GitHub repository. This repository contains both Yocto and OpenEmbedded recipes for wolfSSL products (wolfSSL, wolfSSH, wolfMQTT, wolfTPM) and wolfSSL example applications. It also includes .bbappend files, which can be used to configure the cURL open-source project with support with the wolfSSL library.

More information about Yocto Linux and wolfSSL can be found in the meta-wolfssl readme, located in the GitHub repository here: https://github.com/wolfSSL/meta-wolfssl/blob/master/README.md

For more information on using wolfSSL, please contact facts@wolfssl.com.

wolfSSL 24×7 support

wolfSSL provides support on four levels, one of which is the 24x7 support level. This support level includes many key features not available on the others, such as an unlimited number of support incidents, around-the-clock support from dedicated members of the wolfSSL support team, and remains in effect for an entire year.

wolfSSL provides three other levels of paid support, which also include some of the same features provided by 24x7 support. More details on the wolfSSL support packages and levels can be viewed here: https://www.wolfssl.com/products/support-packages-options/

wolfSSL also provides support for the latest version of the TLS protocol, TLS 1.3! Read more about wolfSSL's implementation and the protocol itself here: https://www.wolfssl.com/docs/tls13/

For more information, please contact facts@wolfssl.com.

TLS 1.3 combined with FIPS (#FIPS #TLS13)

wolfSSL is a lightweight TLS/SSL library that is targeted for embedded devices and systems. It has support for the TLS 1.3 protocol, which is a secure protocol for transporting data between devices and across the Internet. In addition, wolfSSL uses the wolfCrypt encryption library to handle its data encryption.

Because there is a FIPS 140-2 validated version of wolfCrypt, this means that wolfSSL not only has support for the most current version of TLS, but it also has the encryption backbone to support your FIPS 140-2 needs if required.

Some key benefits of combining TLS 1.3 with FIPS validated software include:

  1. Software becomes marketable to federal agencies - without FIPS, a federal agency is not able to use cryptographic-based software
  2. Single round trip
  3. 0-RTT (a mode that enable zero round trip time)
  4. After Server Hello, all handshake messages are encrypted.

And much more! For more information regarding the benefits of using TLS 1.3 or using the FIPS validated version of wolfCrypt, check out wolfSSL's TLS 1.3 Protocol Support and our wolfCrypt FIPS page.

FIPS 140-2 is a government validation that certifies that an encryption module has successfully passed rigorous testing and meets high encryption standards as specified by NIST. For more information or details on FIPS 140-2, it may be helpful to view this Wikipedia article: https://en.wikipedia.org/wiki/FIPS_140-2

For more details about wolfSSL, TLS 1.3, or if you have any other general inquiries please contact facts@wolfssl.com

To find out more about FIPS, check out the NIST FIPS publications or contact fips@wolfssl.com

wolfSSL Asynchronous release 3.15.7 features

Release 3.15.7 of wolfSSL Async has bug fixes and new features including:


  • All wolfSSL v3.15.7 fixes and features.
  • Fixes for additional static analysis warnings and async edge cases (https://github.com/wolfSSL/wolfssl/pull/2003).
  • Added QAT v1.7 driver support including support for QAT 8970 hardware.
  • Added QAT SHA-3 support.
  • Added QAT RSA Key Generation support.
  • Added support for new usdm memory driver.
  • Added support for detecting QAT version and features.
  • Added `QAT_ENABLE_RNG` option to disable QAT TRNG/DRBG.
  • Added alternate hashing method to cache all updates (avoids using partial updates).

Here are the latest benchmarks with various build configurations:

Asymmetric ops/sec SW (CPU) SW (SP) HW QAT HW Nitrox V Symmetric MB/sec SW (CPU) SW (AESNI) HW QAT HW Nitrox V
RSA 2048 key gen 12 12 147 AES-128-CBC Enc 939 5,028 3,454 238
RSA 2048 public 10,679 118,922 271,142 140,699 AES-128-CBC Dec 926 5,585 3,464 238
RSA 2048 private 866 3,767 42,460 8,266 AES-128-GCM 22 5,517 3,341 133
DH 2048 key gen 2,915 7,559 48,931 MD5 608 3,257 2,095
DH 2048 key agree 3,026 7,477 68,351 SHA 394 1,533 2,225
ECDHE 256 agree 4,376 54,119 56,805 10,503 SHA-224 157 1,003 2,400
ECDSA 256 sign 4,153 140,668 60,038 22,165 SHA-256 152 1,003 2,401
ECDSA 256 verify 5,404 43,689 32,853 7,361 SHA-384 256 1,458 2,343
SHA-512 263 1,458 2,314
SHA3-256 742 860 2,565

Performed on an Intel(R) Core(TM) i7-2600 CPU @ 3.40GHz, 16GB RAM, 8 threads, wolfSSL v3.15.7, QuickAssist v1.7 8970 PCIe 16x OR Cavium Nitrox V CNN5560-900-C45

CPU: ./configure --enable-keygen --enable-sha3
SP/AESNI: ./configure --enable-sp --enable-sp-asm --enable-aesni --enable-intelasm --enable-intelrand --enable-keygen --enable-sha3
QAT: ./configure --with-intelqa=../QAT1.7 --enable-asynccrypt --enable-keygen --enable-sha3
Nitrox V: ./configure --with-cavium-v=../CNN55XX-SDK --enable-asynccrypt

If you are interested in evaluating the wolfSSL Asynchronous support for Intel QuickAssist or Cavium Nitrox, please email us at facts@wolfssl.com.

wolfSSL Embedded SSL for Bare Metal and No OS Environments

Are you looking for an SSL/TLS library which will seamlessly integrate into your bare metal or No-OS environment? If so, continue reading to learn why the wolfSSL lightweight SSL library is a perfect fit for such environments.

wolfSSL has been designed with portability and ease of use in mind, allowing developers to easily integrate it into a bare metal or operating systemless environment. As a large percentage of wolfSSL users are running the library on small, embedded devices, we have added several abstraction layers which make tying wolfSSL into these types of environments an easy task.

Available abstraction layers include:

  • Custom Input/Output
  • Standard C library / Memory
  • File system (Able to use cert/key buffers instead)
  • Threading
  • Operating System

In addition to abstraction layers, we have tried to keep wolfSSL’s memory usage as low as possible. Build sizes for a complete SSL/TLS stack range from 20-100kB depending on build options, with RAM usage between 1-36kB per connection.

To learn more about how to integrate wolfSSL into your environment or get more information about reducing wolfSSL’s memory usage, please see the wolfSSL Manual or contact us directly.

wolfSSL FAQ page

The wolfSSL FAQ page can be useful for information or general questions that need need answers immediately. It covers some of the most common questions that the support team receives, along with the support team's responses. It's a great resource for questions about wolfSSL, embedded TLS, and for solutions to problems getting started with wolfSSL.

To view this page for yourself, please follow this link here.

Here is a sample list of 5 questions that the FAQ page covers:

  1. How do I build wolfSSL on ... (*NIX, Windows, Embedded device) ?
  2. How do I manage the build configuration of wolfSSL?
  3. How much Flash/RAM does wolfSSL use?
  4. How do I extract a public key from a X.509 certificate?
  5. Is it possible to use no dynamic memory with wolfSSL and/or wolfCrypt?

Have a  question that isn't on the FAQ? Feel free to email us at support@wolfssl.com.

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