diff --git a/LICENSE b/LICENSE
index 451f269f05e6c2a311468e40f27cc89167de515c..1272db191b2bba5248f88ecd189071115b98a190 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,5 +1,5 @@
-  Copyright (c) 2012, Olivier Blazy (blazy@lix.polytechnique.fr) - Laboratoire d’Informatique de l’École polytechnique (LIX)
-  / Laboratoire d'Innovation Numérique de la CNIL
+  Copyright (c) 2012, Olivier Blazy (olivier.blazy@polytechnique.edu) - Laboratoire d’Informatique de l’École polytechnique (LIX)
+  / Laboratoire d'Innovation Numérique de la CNIL (ip@cnil.fr)
  
  
  GNU GENERAL PUBLIC LICENSE
diff --git a/README.md b/README.md
index 7caf9346f9f9e70b13a4af7413e3b8fa78329e1c..48876a6065003635b27a3140b835e3e86c6c3e0d 100644
--- a/README.md
+++ b/README.md
@@ -68,15 +68,17 @@ Jérôme Gorin
 Amandine Jambert
 Côme Brocas
 Vincent Toubiana
-Et le Peren (Joris Dugépéroux, Victo Amblard, Lucas Verney)
+et l'équipe du Peren (Joris Dugépéroux, Victo Amblard, Lucas Verney)
 
 
 English
 ===
 
-LINC provides a proof of age system demonstrator to allow access to certain categories of sites without sharing other identifying information. You will find more information on how it works in the associated article, available at the following address: (link)
+LINC provides a proof of age system demonstrator to allow access to certain categories of sites without sharing other identifying information. You will find more information on how it works in the associated article, available at the following address: https://linc.cnil.fr/fr/demonstrateur-du-mecanisme-de-verification-de-lage-respectueux-de-la-vie-privee
 
-This demonstrator is published under GPLv3 license and under open license 2.0 (explicitly compatible with CC-BY 4.0 FR). You can therefore freely contribute to its enrichment.
+This demonstrator is published under GPLv3 license and under open license 2.0 (explicitly compatible with CC-BY 4.0 FR). You can therefore freely contribute to its enrichment. It is based on  [Pairing-Based Cryptography](https://crypto.stanford.edu/pbc/)(PBC) library and released under the [GNU Lesser General Public License](http://www.gnu.org/licenses/lgpl-3.0.html).
+
+The group signature scheme is designed by Olivier Blazy(@Gloupin) of the (@LIX_lab/@Polytechnique).
 
 # How to launch this demonstrator
 
@@ -118,4 +120,20 @@ This demonstrator is available under the terms of the GPLv3 license and can be e
 
 **You have an idea you wish to share with us to improve this project ?** Contact the team of the CNIL lab by mail - ip(at)cnil.fr - or *via* the Twitter account [@CNIL](https://twitter.com/CNIL).
 
-For more information, see the `LICENSE` file included.
\ No newline at end of file
+For more information, see the `LICENSE` file included.
+
+## Acknowledgment
+
+This demonstrator is the result of a join effort between [LINC](https://linc.cnil.fr/), [LIX](https://www.lix.polytechnique.fr) and  [PEReN](https://www.peren.gouv.fr/). 
+
+
+
+We would like to thank all the contributors who have enabled us to make this project a reality :
+Olivier Blazy
+Solenn Brunet
+Martin Bieri
+Jérôme Gorin
+Amandine Jambert
+Côme Brocas
+Vincent Toubiana
+and the Peren team (Joris Dugépéroux, Victo Amblard, Lucas Verney)
\ No newline at end of file