Latest Posts

  • uncategorized

    wolfSSL Custom I/O: Handshaking

    • wolfssladmin
    Last week we talked about wolfSSL’s custom I/O handling and how to set it up. The following discussion assumes the I/O callbacks are reading and writing into buffers rather calling send() or recv().A tricky situation is during the handshake. When calling wolfSSL_connect(), the client will send cipher text first and...
    Read more
  • uncategorized

    Don`t forget about Valgrind

    • wolfssladmin
    One of our favorite tools at yaSSL is valgrind: http://valgrind.org .  Originally a memory error detector, its now an instrumentation framework for dynamic analysis that also does thread error detection, cache and branch-prediction profiling, and heap profiling.  If youve never used it, you should.  If you are using it, you should...
    Read more
  • uncategorized

    CTaoCrypt on TinyOS with TinyPKC

    • wolfssladmin
    One of our community members recently ported CTaoCrypt’s RSA and ECC code to the TinOS operating system in a project called TinyPKC (http://www-db.in.tum.de/~kothmayr/tinypkc/). TinyPKC was tested on 16-bit and 32-bit microcontroller platforms and should run on 8-bit platforms as well. It supports ECC key lengths from 112 bits to 521 bits...
    Read more
  • uncategorized

    yaSSL Partnership Program

    • wolfssladmin
    yaSSL believes that business and technology partnerships are one of the keys to fostering success.  Such partnerships can come in many forms - be that business, technical, or community based, and work for both open source or commercial solutions.  To date, we have partnered with several companies, and are always...
    Read more
  • uncategorized

    wolfSSL Custom I/O Setup

    • wolfssladmin
    wolfSSL provides a mechanism to plug in your own application specific I/O routines. By default, the library uses functions that call the system’s recv() and send() functions with a file descriptor cached with the function wolfSSL_set_fd().The prototypes for the I/O routines are: int CBIORecv(CYASSL* ssl, char* buf, int sz, void*...
    Read more
  • uncategorized

    Using Cryptographic Hashes for Hash Tables

    • wolfssladmin
    Choosing a good hash function for a hash table is difficult to say the least.  Even if you can achieve good distribution and performance for a given hash function its still most likely dependent on table size and the type of input.  Resizing the table or getting unexpected input can...
    Read more
  • uncategorized

    yaSSL 2012 Annual Report

    • wolfssladmin
    Business and Company Progress • We doubled our customer base again this year and dramatically increased revenues, confirming the usefulness of our technology, our open source strategy, and our relevance in the emerging device security and BYOD markets. • We have further penetrated key vertical markets, including home appliances, smart...
    Read more
  • uncategorized

    wolfSSL support for Green Hills INTEGRITY RTOS

    • wolfssladmin
    Are you interested in using the wolfSSL lightweight SSL library on the Green Hills INTEGRITY RTOS? Although wolfSSL doesn’t currently have INTEGRITY support, we would like to gauge user and community interest to help us plan our schedule for the upcoming year. If you would like to see INTEGRITY support...
    Read more
  • uncategorized

    wolfSSL Lightweight SSL in 20 kB with Lean PSK

    • wolfssladmin
    Are you interested in using the wolfSSL embedded SSL library in an extremely resource constrained environment? If so, you may be interested to hear that we have recently implemented a wolfSSL “Lean PSK” build which enables the wolfSSL library to be built with a footprint size of 20kB!The “Lean PSK”...
    Read more