RECENT BLOG NEWS

wolfSSL release 4.7 includes --enable-reproducible-build, a new configuration option that suppresses the binary jitter (timestamps and other non-functional metadata) that is otherwise common in various build processes. With --enable-reproducible-build, test and release engineers can carefully align build environments, then generate bitwise-identical binary packages with identical hashes. Using --enable-reproducible-build, FOSS binary distributors can publish their build environment attributes and parameters, then third parties can verify binary distributions by replicating the build process and comparing hashes. Similar processes can be used internal to an organization to confirm the integrity of build environments and source archives.

If you have any questions or run into any issues, contact us at facts@wolfssl.com, or call us at +1 425 245 8247.

Since version 1.7.1, wolfBoot provides support for secure boot on systems with a Trusted Execution Environment (TEE).

wolfBoot provides embedded developers with a code base that complies with the specification for the separation between secure and non-secure world, on those CPUs and microcontrollers that support it. On ARMv8 Cortex-A CPU and Cortex-M microcontrollers it is now possible to create a hardware-enforced separation between the two worlds, using the ARM TrustZone technology.

Our first reference implementation has been made in collaboration with ST using STM32L5 target. This device can be configured to keep the running application or operating system from accessing the Secure world resources, including the partition containing the bootloader itself on the FLASH memory, and other hardware resources that may be configured as secure at boot time.

For more information, check out the wolfBoot product page.

If you have any questions or run into any issues, contact us at facts@wolfssl.com, or call us at +1 425 245 8247.

The wolfSSL OpenSSL compatibility layer is a means to switch applications designed for OpenSSL over to use wolfSSL. In addition to this, it is constantly expanded and currently has more than 500 commonly used OpenSSL functions. wolfSSL also provides Crypto API support to enable easier migration of projects.

We recently added some more in our wolfSSL 4.7.0 release!

• SSL_get_verify_mode
• X509_VERIFY_PARAM API
• X509_STORE_CTX API

… to name a few.

Why might one want to make the migration from OpenSSL and turn on this compatibility in the first place? To start, wolfSSL has numerous benefits over its counterpart, OpenSSL. Some of these include hardware acceleration implementations, progressive adoptions of TLS 1.3 as well as a reduced footprint size. In addition to this, there is the potential to use wolfCrypt FIPS. wolfSSL maintains current FIPS 140-2 (and soon to be 140-3) support which is used in numerous applications. We also provide FIPS Ready builds to help get projects ready for FIPS verification. All of this is supported by a team of trained wolfSSL engineers.

If you have any questions or run into any issues, contact us at facts@wolfssl.com, or call us at +1 425 245 8247.

wolfSSL is happy to announce support for user_settings.h in CMake builds in wolfSSL 4.7.0. To enable this feature, add -DWOLFSSL_USER_SETTINGS=yes to your cmake command and proceed to use user_settings.h as you normally would. For more about user_settings.h, continue reading below.

When building for embedded devices the best way to configure the wolfSSL library is to create a header named “user_settings.h”. Then, at the global level in your application define WOLFSSL_USER_SETTINGS so that when <wolfssl/wolfcrypt/settings.h> is included throughout the library the user_settings.h header is also pulled in. The application should include <wolfssl/wolfcrypt/settings.h>, BEFORE all other wolfSSL headers. A good example user_settings.h for getting started on an embedded project can be found at wolfssl-4.7.0/IDE/GCC-ARM/Header/user_settings.h. That example is well commented and provides a good starting point for any embedded project, even non-ARM based ones!

If you have any questions or run into any issues, contact us at facts@wolfssl.com, or call us at +1 425 245 8247.

As some may be aware, wolfSSL added support for strongSwan in April of 2019. The upstream commit can be reviewed here: https://github.com/strongswan/strongswan/pull/133

Users can test the latest development master of wolfSSL with the latest version of strongSwan using the following setup:

wolfSSL Build and Installation Steps

$ git clone https://github.com/wolfSSL/wolfssl.git

$ cd wolfssl
$ ./autogen.sh

$ ./configure --enable-opensslall --enable-keygen --enable-rsapss --enable-des3 --enable-dtls --enable-certgen --enable-certreq --enable-certext --enable-sessioncerts --enable-crl --enable-ocsp CFLAGS="-DWOLFSSL_DES_ECB -DWOLFSSL_LOG_PRINTF -DWOLFSSL_PUBLIC_MP -DHAVE_EX_DATA"

$ make
$ make check
$ sudo make install

strongSwan Build and Installation Steps

# if the following packages are not already installed:
$ sudo apt-get install flex bison byacc libsoup2.4-dev gperf

$ git clone https://github.com/strongswan/strongswan.git
$ cd strongswan
$ ./autogen.sh

# if packages are missing autogen.sh must be re-run

$ ./configure --disable-defaults --enable-pki --enable-wolfssl --enable-pem
$ make
$ make check
$ sudo make install

wolfSSL has had interest in enabling FIPS 140-2/140-3 support with strongSwan so our engineers verified everything is working with the wolfCrypt FIPS 140-2 validated Module!

The steps wolfSSL used for testing are as follows:

Testing was done using the wolfSSL commercial FIPS release v4.7.0 which internally uses the wolfCrypt v4.0.0 FIPS 140-2 validated Crypto Module. It was located in the /home/user-name/Downloads directory on the target test system, Linux 4.15 Ubuntu 18.04 LTS running on Intel(R) Xeon(R) CPU E3-1270 v6 @ 3.80GHz.

1. wolfSSL was configured and installed with these settings:

./configure --enable-opensslall --enable-keygen --enable-rsapss --enable-des3 --enable-dtls --enable-certgen --enable-certreq --enable-certext --enable-sessioncerts --enable-crl --enable-ocsp CFLAGS="-DWOLFSSL_DES_ECB -DWOLFSSL_LOG_PRINTF -DWOLFSSL_PUBLIC_MP -DHAVE_EX_DATA -DFP_MAX_BITS=8192" --enable-ed25519 --enable-curve25519 --enable-fips=v2 --enable-intelasm --prefix=$(pwd)/../fips-install-dir
 make
 make install

2. A custom install location was used which equated to /home/user-name/Downloads/fips-install-dir and the configuration for strongSwan accounted for this.
3. strongSwan was cloned to /home/user-name/Downloads with “git clone https://github.com/strongswan/strongswan.git”
4. StongSwan was configured and installed with these settings:

./configure --disable-defaults --enable-pki --enable-wolfssl --enable-pem --prefix=$(pwd)/../strongswan-install-dir wolfssl_CFLAGS="-I$(pwd)/../fips-install-dir/include" wolfssl_LIBS="-L$(pwd)/../fips-install-dir/lib -lwolfssl"
 make
 make install
 make check

5. In the make check stage of the test, it was observed that 1 test was failing.

 Passed 34 of 35 'libstrongswan' suites
 FAIL: libstrongswan_tests
 ==================
 1 of 1 test failed
 ==================

6. Reviewing the logs it was apparent one of the RSA tests was failing.
7. Upon further debugging it turned out the failure was a test in strongSwan that was attempting to create an RSA key size of 1536-bits.

Running case 'generate':
 DEBUG: key_sizes[_i] set to 1024
 + PASS
 DEBUG: key_sizes[_i] set to 1536
 - FAIL
 DEBUG: key_sizes[_i] set to 2048
 + PASS
 DEBUG: key_sizes[_i] set to 3072
 + PASS
 DEBUG: key_sizes[_i] set to 4096
 + PASS

wolfSSL has a function RsaSizeCheck() which in FIPS mode will specifically reject any non FIPS RSA key sizes so this failure was not only expected, but it is a good thing for those wanting to use strongSwan in FIPS mode and ensure only FIPS-validated RSA key sizes will be supported!

wolfSSL is pleased that with the latest release of wolfSSL v4.7.0 and the wolfCrypt FIPS 140-2 module validated on FIPS certificate 3389, strongSwan support is working splendidly and wolfSSL engineers will be making efforts to ensure continued support into the future!

If you have any questions or run into any issues, contact us at facts@wolfssl.com, or call us at +1 425 245 8247.

Three of our biggest engineering investments at wolfSSL are testing, testing, and testing. We invest heavily in testing, so that you don’t have to. We develop and test with 30+ operating systems, 10+ compilers, 50+ chipsets, 20+ hardware encryption IP schemes, and 15+ secure enclaves. We add more of the above to our Jenkins based CI/CD package every day. We do unit tests on everything, we run 5 static analyzers, and we run 7 internal fuzz testers. We employ sophisticated outside consultants to run additional fuzz testing.

Oh, yeah, we’ve had our code audited by every major vendor in computing, because they are all our customers, and need to review our code to ensure their own security and branding.

We’ve also been audited by over 20 security research teams in academia.

Finally, we’ve been through industry specific testing like DO-178 in aviation, MISRA and ASPICE in automotive, and FIPS 140 in government.

Contrast all of that with the testing and assurance you get from our competitors on your particular platform. It won’t compare.

Want to hear more about why we have the best tested cryptography and TLS 1.3? Email us at facts at wolfSSL dot com!

If you have any questions or run into any issues, contact us at facts@wolfssl.com, or call us at +1 425 245 8247.

wolfSSL is happy to announce support for the latest stable version of stunnel, version 5.57. Per the stunnel website, “Stunnel is a proxy designed to add TLS encryption functionality to existing clients and servers without any changes in the programs’ code.” wolfSSL also supports version 5.40 of stunnel. If you’re in need of a fast, low memory, and FIPS-validated TLS 1.3 implementation for stunnel.

If you have any questions or run into any issues, contact us at facts@wolfssl.com, or call us at +1 425 245 8247.

The winter release of wolfMQTT, v1.8.0, is now available! This release has several bug fixes and optimizations including:

• Fixes for non-blocking in WIN32 and large payload (PR #202)
• Make TLS IO callback functions public (PR #201)
• Bug fixes (PR #186, 188, 189, 193, 196, 199, 200)
• Update default test broker (PR #194)
• MQTT-SN fixes for multithread and register topic name (PR #185, 190)
• Fix multi-thread to use pthread mutex with condition (PR #183)
• Fix for WIN thread create macro (PR #182)
• Use options.h with Arduino build (PR #181)
• Use MqttClient_Ping_ex instead of MqttClient_Ping in examples (PR #179)
• Fixes for building with MinGW (PR #178)
• MQTT-SN support for multithread (PR #176)
• TLS mutual auth in client examples (PR #175)
• MQTT-SN feature enhancements (PR #173)
• Add runtime message option to client (PR #171)

If you have any questions or run into any issues, contact us at facts@wolfssl.com, or call us at +1 425 245 8247.

https://github.com/wolfSSL/wolfMQTT/blob/master/ChangeLog.md

While you’re there, show us some love and give the wolfMQTT project a Star!
You can download the latest release here: https://www.wolfssl.com/download/
Or clone directly from our GitHub repository: https://github.com/wolfSSL/wolfMQTT

Hi! We’ve been wondering how well the M1 will perform in our standard cryptographic benchmarks, just like you! We’ll also be bring FIPS 140-2 to the M1.

Watch this space, as we’ll be releasing them in the next few weeks.

If you have any questions or run into any issues, contact us at facts@wolfssl.com, or call us at +1 425 245 8247.

Did you know that the wolfSSL embedded SSL/TLS library supports ARMv8 as well as the Cryptography Extensions that it provides?  wolfSSL is more than 10 times faster with AES and SHA256 operations the ARMv8 board we have been testing on (HiKey LeMaker) when using hardware acceleration versus software crypto!

ARMv8 Benchmark Data comparing Software and Hardware Cryptography

If you have any questions or run into any issues, contact us at facts@wolfssl.com, or call us at +1 425 245 8247.