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diff --git a/LICENSE-OCB.md b/LICENSE-OCB.md new file mode 100644 index 0000000..6293e33 --- /dev/null +++ b/LICENSE-OCB.md @@ -0,0 +1,93 @@ +License for OCB Usage +===================== + +Last updated: November 1, 2022 + +This license has been graciously granted by Professor Phillip Rogaway to allow +users of [`rnp`](https://github.com/rnpgp/rnp) to utilize the patented +[OCB](http://web.cs.ucdavis.edu/~rogaway/ocb/) blockcipher mode of operation, +which simultaneously provides privacy and authenticity. + +While the license is irrevocable and does not expire, it is no longer necessary, +since Professor Phillip Rogaway confirmed that the OCB patents are now in the +public domain and officially abandoned, announced at the link below: + +* https://mailarchive.ietf.org/arch/msg/cfrg/qLTveWOdTJcLn4HP3ev-vrj05Vg/ + +This license text remains in RNP as an acknowledgement of kindness given by +Professor Phillip Rogaway to make OCB available for RNP users. + +The license text is presented below in plain text form purely for referential +purposes. The original signed license is available on request from Ribose Inc., +reachable at open.source@ribose.com. + +This file adheres to the formatting guidelines of +[readable-licenses](https://github.com/nevir/readable-licenses). + + +OCB Patent License for Ribose Inc. +---------------------------------- + +1. Definitions + +1.1 "Licensor" means Phillip Rogaway, of 1212 Purdue Dr., Davis, California, USA. + +1.2 "Licensed Patents" means any patent that claims priority to United States +Patent Application No. 09/918,615 entitled "Method and Apparatus for +Facilitating Efficient Authenticated Encryption," and any utility, divisional, +provisional, continuation, continuations in part, reexamination, reissue, or +foreign counterpart patents that may issue with respect to the aforesaid patent +application. This includes, but is not limited to, United States Patent No. +7,046,802; United States Patent No. 7,200,227; United States Patent No. +7,949,129; United States Patent No. 8,321,675; and any patent that issues out +or United States Patent Application No. 13/669,114. + +1.3 "Licensee" means Ribose Inc., at Suite 1, 8/F, 10 Ice House Street, +Central, Hong Kong, its affiliates, assignees, or successors in interest, or +anyone using, making, copying, modifying, distributing, having made, importing, +or having imported any program, software, or computer system including or based +upon Open Source Software published by Ribose Inc., or their customers, +suppliers, importers, manufacturers, distributors, or insurers. + +1.4 "Use in Licensee Products" means using, making, copying, modifying, +distributing, having made, importing or having imported any program, software, +or computer system published by Licensee, which contains or is based upon Open +Source Software which may include any implementation of the Licensed Patents. + +1.5 "Open Source Software" means software whose source code is published and +made available for inspection and use by anyone because either (a) the source +code is subject to a license that permits recipients to copy, modify, and +distribute the source code without payment of fees or royalties, or (b) the +source code is in the public domain, including code released for public use +through a CC0 waiver. All licenses certified by the Open Source Initiative at +opensource.org as of January 1, 2017 and all Creative Commons licenses +identified on the creativecommons.org website as of January 1, 2017, including +the Public License Fallback of the CC0 waiver, satisfy these requirements for +the purposes of this license. + +2. Grant of License + +2.1 Licensor hereby grants to Licensee a perpetual, worldwide, non-exclusive, +nontransferable, non-sublicenseable, no-charge, royalty-free, irrevocable +license to Use in Licensee Products any invention claimed in the Licensed +Patents in any Open Source Software Implementation and in hardware as long as +the Open Source Software incorporated in such hardware is freely licensed for +hardware embodiment. + +3. Disclaimer + +3.1 LICENSEE'S USE OF THE LICENSED PATENTS IS AT LICENSEE'S OWN RISK AND UNLESS +REQUIRED BY APPLICABLE LAW, LICENSOR MAKES NO REPRESENTATIONS OR WARRANTIES OF +ANY KIND CONCERNING THE LICENSED PATENTS OR ANY PRODUCT EMBODYING ANY LICENSED +PATENT, EXPRESS OR IMPLIED, STATUTORY OR OTHERWISE, INCLUDING, WITHOUT +LIMITATION, WARRANTIES OF TITLE, MERCHANTIBILITY, FITNESS FOR A PARTICULAR +PURPOSE, OR NONINFRINGEMENT. IN NO EVENT WILL LICENSOR BE LIABLE FOR ANY CLAIM, +DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE, ARISING +FROM OR RELATED TO ANY USE OF THE LICENSED PATENTS, INCLUDING, WITHOUT +LIMITATION, DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, PUNITIVE OR SPECIAL +DAMAGES, EVEN IF LICENSOR HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES +PRIOR TO SUCH AN OCCURRENCE. + +[SIGNATURE by Phillip Rogaway] + +Date: August 28, 2017 |