HOW TO CONTRIBUTE TO OpenSSL ---------------------------- Development is coordinated on the openssl-dev mailing list (see http://www.openssl.org for information on subscribing). If you would like to submit a patch, send it to rt@openssl.org with the string "[PATCH]" in the subject. Please be sure to include a textual explanation of what your patch does. You can also make GitHub pull requests. If you do this, please also send mail to rt@openssl.org with a brief description and a link to the PR so that we can more easily keep track of it. If you are unsure as to whether a feature will be useful for the general OpenSSL community please discuss it on the openssl-dev mailing list first. Someone may be already working on the same thing or there may be a good reason as to why that feature isn't implemented. Patches should be as up to date as possible, preferably relative to the current Git or the last snapshot. They should follow our coding style (see https://www.openssl.org/policies/codingstyle.html) and compile without warnings using the --strict-warnings flag. OpenSSL compiles on many varied platforms: try to ensure you only use portable features. Note: For legal reasons, contributions from the US can be accepted only if a TSU notification and a copy of the patch are sent to crypt@bis.doc.gov (formerly BXA) with a copy to the ENC Encryption Request Coordinator; please take some time to look at http://www.bis.doc.gov/Encryption/PubAvailEncSourceCodeNofify.html [sic] and http://w3.access.gpo.gov/bis/ear/pdf/740.pdf (EAR Section 740.13(e)) for the details. If "your encryption source code is too large to serve as an email attachment", they are glad to receive it by fax instead; hope you have a cheap long-distance plan. Our preferred format for changes is "diff -u" output. You might generate it like this: # cd openssl-work # [your changes] # ./Configure dist; make clean # cd .. # diff -ur openssl-orig openssl-work > mydiffs.patch