diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
new file mode 100644
index 0000000..16a23fb
--- /dev/null
+++ b/CONTRIBUTING.md
@@ -0,0 +1,40 @@
+# Contributing to This Project
+
+Thank you for your interest in this project. Please read this document
+carefully before considering any contributions.
+
+## Scope of Contributions
+
+This project only accepts contributions related to security maintenance. No
+other types of contributions are expected or will be accepted at this time.
+
+## Support Policy
+
+Thank you for understanding and respecting the limited scope of this project's
+contributions and support. In particular, there is no commitment regarding
+processing times.
+
+### Limited Support Scope
+
+- Support is provided exclusively to contributors working on security-related
+  improvements.
+- The project maintainers will only assist with issues directly related to your
+  security maintenance contributions.
+
+### No General Support
+
+- We do not offer general support for using or setting up the project.
+- Questions, feature requests, or issues unrelated to active security
+  maintenance contributions will not be addressed.
+
+## How to Contribute
+
+1. Ensure your contribution is strictly related to security maintenance.
+2. Fork the repository and create a new branch for your work.
+3. Submit a pull request with a clear description of your security-related
+   improvements.
+
+## Security Vulnerabilities
+
+If you discover a security vulnerability, please report it according to our
+security policy outlined in the [`SECURITY.md`](SECURITY.md).
\ No newline at end of file
diff --git a/README.md b/README.md
index 11cb08c..3611691 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,16 @@ Copyright (C) 2023
 
 **Contributors**: Adrian THILLARD, Emmanuel PROUFF
 
+<img src="https://www.sgdsn.gouv.fr/files/styles/ds_image_paragraphe/public/files/Notre_Organisation/logo_anssi.png" alt="ANSSI logo" width="30%">
+
+## French Cybersecurity Agency (ANSSI)
+
+[![badge_repo](https://img.shields.io/badge/ANSSI--FR-IPECC-white)](https://github.com/ANSSI-FR/template)
+[![category_badge_doctrinal](https://img.shields.io/badge/category-doctrinal-%23e9c7e7)](https://anssi-fr.github.io/README.en.html#project-categories)
+[![openess_badge_C](https://img.shields.io/badge/code.gouv.fr-published-orange)](https://documentation.ouvert.numerique.gouv.fr/les-parcours-de-documentation/ouvrir-un-projet-num%C3%A9rique/#niveau-ouverture)
+
+*This projet is managed by [ANSSI](https://cyber.gouv.fr/). To find out more, you can visit the [page](https://cyber.gouv.fr/enjeux-technologiques/open-source/) (in French) dedicated to ANSSI’s open-source strategy. You can also click on the badges above to learn more about their meaning.*
+
 ## Introduction
 
 IPECC is a hardware IP block performing the computation of scalar multiplication $[k]P$ over elliptic curves defined in short Weierstrass form on a finite field of charasteristic $p > 3$. IPECC has been developped mainly for SRAM-based FPGAs (both Xilinx and Intel-Altera) but it should also be usable as input to an ASIC flow without any kind of restriction.
diff --git a/SECURITY.md b/SECURITY.md
new file mode 100644
index 0000000..a42cc0e
--- /dev/null
+++ b/SECURITY.md
@@ -0,0 +1,16 @@
+# Security Policy
+
+## Reporting a Vulnerability
+
+If you discover a security vulnerability in this project, please help us
+address it responsibly by following these steps:
+
+1. **Do not publicly disclose the vulnerability.**
+2. Contact us directly at
+   [opensource@ssi.gouv.fr](mailto:opensource@ssi.gouv.fr) with the following
+   details:
+   - A clear description of the issue.
+   - Steps to reproduce the vulnerability.
+   - Any potential impact or exploit scenarios.
+
+Thank you for helping us keep this project secure!
\ No newline at end of file