license question
Originally I sent this letter to [EMAIL PROTECTED], as indicated by the license file, but I never got a response. Hopefully you in openssl-users can help. I work for nFocal, a company in Rochester, New York. We want to develop a variant of OpenSSL in which we optimize the cryptography library to run on a particular DSP. The other components of OpenSSL would remain unchanged except where needed to utilize our custom library. We might modify OpenSSL's cryptography library, or we may write our own from scratch. Could you please explain our licensing restrictions for these two scenarios? In particular, we are unclear as to what redistribution rights the OpenSSL license would grant to customers who purchase our OpenSSL variant. Would they be allowed to redistribute our optimized library? Your help is greatly appreciated. __ OpenSSL Project http://www.openssl.org User Support Mailing Listopenssl-users@openssl.org Automated List Manager [EMAIL PROTECTED]
Re: license question
Richard Koenning wrote: Ryan Shon wrote: In particular, we are unclear as to what redistribution rights the OpenSSL license would grant to customers who purchase our OpenSSL variant. Would they be allowed to redistribute our optimized library? The license enumerates the conditions which have to be met for redistribution. I think the discussion can be shortened when you explain which point of the license is unclear to you. Ciao, Richard My boss hopes to sell this OpenSSL variant as a product. Because of this, he would not want customers who buy this product to be free to redistribute it on their own. If we were only to modify existing OpenSSL, then I assume our entire product would be subject to free redistribution by customers under the license. Is this correct? However, if the cryptographic library in our OpenSSL variant were written from scratch, using no OpenSSL code (while the SSL library still used OpenSSL code), would we have the right to forbid redistribution of our cryptographic library and its source? I hope that clarifies my question. Again, thank you for your help. __ OpenSSL Project http://www.openssl.org User Support Mailing Listopenssl-users@openssl.org Automated List Manager [EMAIL PROTECTED]
related license question
Thank you for the clarification. What you have said makes sense, but I am still a little unclear on what is meant by redistribution and products derived from [OpenSSL]. Presumably, a program, e.g. a web browser, could be written which uses OpenSSL (whether through linking to the libraries or by including actual pieces of OpenSSL code), and this browser would not have to be licensed under the OpenSSL license. This would be a product derived from OpenSSL, and users could be forbidden to redistribute the browser in source or binary forms. Is this a correct interpretation of what a product derived is? If a person were to take a full OpenSSL distribution and completely rewrite some source files, but not all source files, of which libcrypto.a is composed, then compile and distribute the resulting libraries libssl.a and libcrypto.a, would libssl.a be a redistribution, and would libcrypto.a be a product derived or a redistribution? In other words, would the person be able to prohibit redistribution of their new libcrypto.a, even though it utilizes some unmodified OpenSSL code, and is part of a complete OpenSSL distribution? I appreciate your help. __ OpenSSL Project http://www.openssl.org User Support Mailing Listopenssl-users@openssl.org Automated List Manager [EMAIL PROTECTED]
what exactly is the threads option to Configure for?
I am trying to decide whether building OpenSSL with threads option is appropriate or not for my particular situation. The Configure script says that the option tr[ies] to create a library that is suitable for multithreaded applications. How exactly are the libraries created to be suitable for multithreading? Is it related to how dynamic linking works for a multithreaded app? Does it enable SSL protocols to increase efficiency by splitting up processing among parallel threads? Does it involve kernel-specific code to handle the multi-threading? Thank you for your help __ OpenSSL Project http://www.openssl.org User Support Mailing Listopenssl-users@openssl.org Automated List Manager [EMAIL PROTECTED]
modifying Configure to build for Blackfin 537 DSP using VisualDSP++ compiler
I am attempting to build OpenSSL for the Analog Devices Blackfin 537 digital signal processing chip using the VisualDSP++ compiler, also from Analog Devices. I have been studying the Configure script, and I would be appreciative of any advice you could give. I especially would like help determining what must be considered when creating a new key-value pair in %table; what exactly is the significance of each field (bn_ops, unistd, l_flags, etc), and what values should be given for these fields? Thank you very much. P.S. In my early attempts to build OpenSSL in VisualDSP++ one of the many things that gave me trouble was that VisualDSP++ has no unistd.h. __ OpenSSL Project http://www.openssl.org User Support Mailing Listopenssl-users@openssl.org Automated List Manager [EMAIL PROTECTED]
