12/1/2017: SEAL v2.3.0-4 available
A new update v2.3.0-4 fixing several major bugs and issues has been released. Important changes include:
11/17/2017: Small updates
As some of you may have noticed, we’ve been pushing a lot of small (and big) bug fixes and other updates since the initial release of v2.3.0. We just released SEAL v2.3.0-3 which—in addition to the bug fixes—brings substantial improvements to memory locality and subsequently has a major impact on performance with larger parameters.
11/9/2017: Direct download link
SEAL v2.3.0-2 can now be downloaded directly from https://www.microsoft.com/en-us/download/details.aspx?id=56202.
11/7/2017: SEAL v2.3.0 released
A new version of SEAL is available! This is the biggest update since the first release, and contains a huge number of improvements, including:
A new SEAL manual will be available shortly.
We highly recommend all users (especially those familiar with older versions of SEAL) to go carefully over the examples in SEALExamples/main.cpp. There are several subtle but critical differences to SEAL v2.2, which are necessary to know to achieve the best performance.
7/21/2017: SEAL has found a new home
SEAL is now available at http://sealcrypto.visualstudio.com. To get access, send us an email at firstname.lastname@example.org, include an email address associated to your Microsoft Live Account, and tell us briefly what you are planning on using SEAL for. SEAL v2.3 will be available only through the new repository.
6/4/2017: SEAL v2.2 released
SEAL v2.2 has been released. It includes the changes from the experimental branch, and many other improvements. We have big plans for major improvements to be implemented this summer, so stay tuned!
10/13/2016: Experimental Branch
A new experimental branch has been created. This branch will get much more frequent updates than the master branch, but these updates may not have been tested as thoroughly as the code in the master branch, may introduce frequent API changes, and may contain incomplete functionality. This first experimental commit contains some significant performance improvements over SEAL v2.1.
9/30/2016: SEAL v2.1 released
Again a new version of SEAL has been released. This is a fairly large update, which focuses mostly on performance, but also introduces some small API changes.
To accompany the release and to explain the changes in SEAL v2.1, we have released a new version of the documentation, available here.
SEAL v2.3.0-4 can be downloaded from https://www.microsoft.com/en-us/download/details.aspx?id=56202.
A detailed manual for SEAL v2.3.0 is available. The manual contains a short introduction to homomorphic encryption, an explanation of changes from the previous release, and some details on how SEAL works under the hood.
The code-base contains examples written both in C++ (SEALExamples/) and in C# (SEALNETExamples/). These examples are thoroughly commented, serving as a self-contained short introduction to using the library, and demonstrating most of the basic features, and also some more advanced use-cases. In addition, the .h files both in the C++ library and in the .NET wrapper library contain detailed comments for the public API.
Going over the code examples in detail is probably the best way for a new user to get started.
Microsoft Research License Agreement for Simple Encrypted Arithmetic Library
This Microsoft Research License Agreement, including all exhibits (“Agreement”) is a legal agreement between you and Microsoft Corporation (or based on where you live, one of its affiliates). Please read them. They apply to the Microsoft Research software named above, which may include source code and any associated materials, text or speech files, associated media and “online” or electronic documentation and any updates we provide in our discretion (together, the “Software”). The terms also apply to any Microsoft (i) updates, (ii) supplements, (iii) internet-based services, and (iv) support services for this Software, unless other terms accompany those items. If so, those terms apply.
By agreeing to this Agreement and/or by using the Software, you accept these terms. If you do not accept them, do not use the Software. If you comply with these license terms, you have the rights below.
1. SCOPE OF RIGHTS.
a. License Grant. You may use, copy, modify, create derivative works, and distribute the Software for non-commercial purposes, subject to the restrictions in this Agreement. Examples of non-commercial uses are teaching, academic research, public demonstrations and personal experimentation.
b. Publication. You may publish (or present papers or articles) on your results from using the Software.
2. DISTRIBUTION REQUIREMENTS:
a. If you distribute the Software or any derivative works of the Software, you will distribute them under the same terms and conditions as in this license, and you will not grant other rights to the Software or derivative works that are different from those provided by this Agreement.
b. If you have created derivative works of the Software, and distribute such derivative works, you will cause the modified files to carry prominent notices so that recipients know that they are not receiving the original software. Such notices must state: (i) that you have changed the software; and (ii) the date of any changes.
3. LICENSE TO MICROSOFT. In the event you contribute code or other materials to the Simple Encrypted Arithmetic Library project, Microsoft is granted back, without any restrictions or limitations, a non-exclusive, perpetual, irrevocable, royalty-free, assignable and sub-licensable license, to reproduce, publicly perform or display, install, use, modify, post, distribute, make and have made, sell and transfer such contributions, and any other modifications to and/or derivative works of the Software source code or data, for any purpose.
4. SCOPE OF LICENSE. The Software is licensed, not sold. This Agreement only gives you some rights to use the Software. Microsoft reserves all other rights. The patent rights, if any, granted to you in this Agreement only apply to the Software, not to any derivative works you make. In using the Software, you must comply with any technical limitations in the Software that may only allow you to use it in certain ways. You may not:
a. Publish the Software for others to copy;
b. Rent, lease or lend the Software; or
c. Transfer the Software or this Agreement to any third party.
5. FEEDBACK. Any feedback about the Software provided by you to us is voluntarily given, and Microsoft shall be free to use the feedback as it sees fit without obligation or restriction of any kind, even if the feedback is designated by you as confidential.
6. TERM; TERMINATION. The term of this Agreement will commence upon your acceptance of these license terms and will continue unless terminated earlier as provided herein. If you breach this Agreement or if you sue Microsoft or any other party over patents that you think may apply to or read on the Software or anyone’s use of the Software, this Agreement (and your license and rights obtained herein) terminate automatically. If this Agreement is terminated, you must cease using and distributing any derivative works or modifications of the Software. Any sections that are intended to survive termination of this Agreement shall survive.
7. EXPORT RESTRICTIONS. The Software is subject to United States export laws and regulations. You must comply with all domestic and international export laws and regulations that apply to the Software. These laws include restrictions on destinations, end users and end use. For additional information, see www.microsoft.com/exporting.
8. ENTIRE AGREEMENT. This Agreement, any exhibits, and the terms for supplements, updates, Internet-based services and support services that you use, are the entire agreement for the Software and support services.
9. SEVERABILITY. If any court of competent jurisdiction determines that any provision of this Agreement is illegal, invalid or unenforceable, the remaining provisions will remain in full force and effect.
10. GOVERNING LAW AND VENUE. This Agreement is governed by and construed in accordance with the laws of the state of Washington, without reference to its choice of law principles to the contrary. Each party hereby consents to the jurisdiction and venue of the state and federal courts located in King County, Washington, with regard to any suit or claim arising under or by reason of this Agreement.
11. LEGAL EFFECT. This Agreement describes certain legal rights. You may have other rights under the laws of your country. This Agreement does not change your rights under the laws of your country if the laws of your country do not permit it to do so.
12. NO ASSIGNMENT. You may not assign this Agreement or any rights or obligations hereunder, except with Microsoft’s express written consent. Any attempted assignment in violation of this section will be void.
13. DISCLAIMER OF WARRANTY. THE SOFTWARE IS LICENSED “AS-IS.” YOU BEAR THE RISK OF USING IT. MICROSOFT GIVES NO EXPRESS WARRANTIES, GUARANTEES OR CONDITIONS. YOU MAY HAVE ADDITIONAL CONSUMER RIGHTS OR STATUTORY GUARANTEES UNDER YOUR LOCAL LAWS WHICH THIS AGREEMENT CANNOT CHANGE. TO THE EXTENT PERMITTED UNDER YOUR LOCAL LAWS, MICROSOFT EXCLUDES THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
We are always looking for talented Ph.D. student interns to work with us on the SEAL project, and related homomorphic encryption research. If you are interested in a fun and productive 12-week internship at Microsoft Research, send us an email at email@example.com. Internships can take place at any time of the year.
An ideal intern candidate has a non-empty subset of the following:
Current and past interns:
|Nathan Dowlin (Princeton University)||Rachel Player (Royal Holloway, University of London)|
|Gizem Cetin (Worcester Polytechnic Institute)||Yuhou (Susan) Xia (Princeton University)|
|Peter Rindal (Oregon State University)||Kyoohyung Han (Seoul National University)|
|Zhicong Huang (EPFL)||Amir Jalali (Florida Atlantic University)|
We believe strongly that (fully) homomorphic encryption is ripe for use in many real-world applications. Since the technology is still quite new, and the existing libraries are very diverse in their functionality and design, we believe that a clear and public standardization effort could help in
If you have any questions, suggestions, comments, or bug reports, please contact us by emailing firstname.lastname@example.org.