RECENT BLOG NEWS

wolfTPM version 1.5.0 was recently released, and features many new updates and additions to the wolfTPM library.

Summary:

• Added support for the Microchip ATTPM20 TPM 2.0 module
• Added Barebox bootloader support.
• Added TPM wrappers for HMAC, AES Key Loading.
• Added Benchmarking support for RNG, AES, Hashing and TLS.
• Improvements for TLS client/server examples and overall performance.

Detail:

• Fixed issue with cleanup not unregistering the crypto callback.
• Added support for Microchip ATTPM20 part.
• Added support for Barebox (experimental).
• Added TLS benchmarking for CPS and KB/Sec. Enabled with TLS_BENCH_MODE.
• Added TLS client/server support for symmetric AES/HMAC/RNG. Enabled with WOLFTPM_USE_SYMMETRIC.
• Added TLS client/server support for mutual authentication.
• Added TIS locking protection for concurrent process access. Enabled using WOLFTPM_TIS_LOCK.
• Added symmetric AES encrypt and decrypt wrappers and examples.
• Added HMAC wrappers and examples.
• Added wrappers and examples for loading external HMAC and AES keys.
• Added delete key wrapper and example.
• Added ECDH support for ephemeral key generation and shared secret.
• Added benchmark support for RNG, AES (CTR, CBC, CFB) 128/256 and SHA-1, SHA-256, SHA-384 and SHA-512.
• Added new wolfTPM2_GetCapabilities wrapper API for getting chip info.
• Added command and response logging using ./configure --enable-debug=verbose or #define WOLFTPM_DEBUG_VERBOSE.
• Added option to enable raw IO logging using WOLFTPM_DEBUG_IO.
• Added option to disable TPM Benchmark code using NO_TPM_BENCH.
• Added examples/README.md for setup instructions.
• Tuned max SPI clock and performance for supported TPM 2.0 chips.
• Cleanup to move common test parameters into examples/tpm_test.h.
• Updated benchmarks and console output for examples in README.md.

For more information about wolfTPM or other wolfSSL libraries, please contact facts@wolfssl.com.

wolfSSL provides many different products, one of which is the wolfSSH library. wolfSSH itself provides a lightweight embedded SFTP solution. SFTP can be used to securely transfer files, and to manage the filesystem of a peer. wolfSSH’s implementation of SFTP uses less than a third of the memory that OpenSSH does for a SFTP connection. The following figures outline the performance of wolfSSH's SFTP solution compared with OpenSSH's performance.

For more information about using wolfSSH and its features, please contact facts@wolfssl.com.

Additionally, wolfSSL also provides support for using TLS 1.3! More information is available here: https://www.wolfssl.com/docs/tls13/.

wolfSSL's embedded SSL/TLS library has included support for TLS 1.3 since early releases of the TLS 1.3 draft. Since then, wolfSSL has remained up-to-date with the TLS 1.3 specification. In this post, the major upgrades of TLS 1.3 from TLS 1.2 are outlined below:

TLS 1.3

This protocol is defined in RFC 8446. TLS 1.3 contains improved security and speed. The major differences include:

• The list of supported symmetric algorithms has been pruned of all legacy algorithms. The remaining algorithms all use Authenticated Encryption with Associated Data (AEAD) algorithms.
• A zero-RTT (0-RTT) mode was added, saving a round-trip at connection setup for some application data at the cost of certain security properties.
• Static RSA and Diffie-Hellman cipher suites have been removed; all public-key based key exchange mechanisms now provide forward secrecy.
• All handshake messages after the ServerHello are now encrypted.
• Key derivation functions have been re-designed, with the HMAC-based Extract-and-Expand Key Derivation Function (HKDF) being used as a primitive.
• The handshake state machine has been restructured to be more consistent and remove superfluous messages.
• ECC is now in the base spec  and includes new signature algorithms. Point format negotiation has been removed in favor of single point format for each curve.
• Compression, custom DHE groups, and DSA have been removed, RSA padding now uses PSS.
• TLS 1.2 version negotiation verification mechanism was deprecated in favor of a version list in an extension.
• Session resumption with and without server-side state and the PSK-based ciphersuites of earlier versions of TLS have been replaced by a single new PSK exchange.

More information about the TLS 1.3 protocol can be found here: https://www.wolfssl.com/docs/tls13/. Additionally, please contact facts@wolfssl.com for any questions.

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.

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's embedded SSL/TLS library comes with support for many other tools and libraries, one of which is cURL. cURL is a computer software project that produces two products (libcurl and cURL) that are used for transferring data using various protocols. In addition to support for cURL, wolfSSL will also be integrating the cURL library in conjunction with Daniel Stenberg (an original author of cURL and one of the founders) joining the wolfSSL team.

With this integration and Daniel Stenberg joining wolfSSL, wolfSSL will now also be providing support and consulting for the cURL library.

wolfSSL also provides support for the latest versions of the TLS protocol, including TLS 1.3! As such, wolfSSL is considering adding TLS 1.3 support to cURL in the future. More information about wolfSSL and TLS 1.3 can be found here: https://www.wolfssl.com/docs/tls13/.

For more information regarding wolfSSL, TLS 1.3, cURL, or all of the above, please contact facts@wolfssl.com.

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, 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.

With each release of the wolfSSL embedded SSL/TLS library, new improvements and feature additions are always included. With recent releases, the wolfSSL team has improved existing Online Certificate Status Protocol (OCSP) support when using wolfSSL with NGINX. These improvements include items such as more detailed/stronger error reporting and updated certificate management.

NGINX is a high-performance, high-concurrency web server, that is increasing in popularity. Like wolfSSL, it is also compact, fast, and highly scalable. OCSP is an alternative to Certificate Revocation Lists (CRL), and is used to validate certificates for HTTPS connections. OCSP addresses problems involving Public Key Infrastructure (PKI) and typically has improved speed over CRL. Combining two high-performance aspects - NGINX and OCSP - yields another high-performance mark for wolfSSL. Additionally, wolfSSL also provides support for the latest and most secure TLS protocol, TLS 1.3. NGINX servers can use OCSP with wolfSSL while also providing TLS 1.3 support.

For more information on wolfSSL updates, the wolfSSL changelog can be viewed here: https://www.wolfssl.com/docs/wolfssl-changelog/. For any other questions, feel free to contact facts@wolfssl.com.

wolfSSL provides one of the most secure embedded SSL/TLS libraries, a high-powered and lightweight encryption engine, and other products. wolfSSL also provides various services, one of which is the exemplary support offered by the wolfSSL support team.

wolfSSLs' support is continuously improving in its quality and speed. This is shown by the average customer ratings that the wolfSSL support team receives, and through other additional feedback. When wolfSSL support closes a ticket, customers are given the option to either rate the support received as "Good, I'm satisfied," or "Bad, I'm unhappy,". For the year 2018, wolfSSL received a 98.6% overall satisfaction rating from hundreds of support cases. The average satisfaction rating for wolfSSL has been improving over the years, as a result of our continued efforts to provide not only the best tested cryptography in the world, but also the best customer support available from any crypto provider. We will continue to strive and deliver the best possible customer experience via our support department and look forward to assisting all of our users in any way we can.

To have your own questions answered by the wolfSSL support team, please contact support@wolfssl.com. We also provide some more general information about wolfSSL products which can be obtained by contacting facts@wolfssl.com.

Did you know that wolfSSL supports TLS 1.3!? More information can be found here: https://www.wolfssl.com/docs/tls13/.