KfW utilizes and runs several services, that require certificates for a secure communication/connection or for the purpose of digital signatures. KfW creates and manages these certificates in different Public Key Infrastructures.

Secure E-Mail with KfW

KfW Group uses an e-mail encryption gateway which supports the encryption methods PGP and respectively S/MIME. The key material of the KfW employee can be request over the internet via the following LDAP query:

Servername: keys.kfw.de

Port: 389

Base DN: dc=keyserver

You can download the key material via the following Link: https://secmail.kfw.de.

Secure communication with PGP or S/MIME:

If you want to send the S/MIME certificate to KfW, please send a signed mail to the KfW recipient of your email.

If you use a PGP Key, please send us the key as an attachement (.asc) to .

If you use a PGP or S/MIME domain certificate, please send us the file (.zip) without password protection to .

Secure communication with GINAmail:

If you don't support PGP and S/MIME you can exchange secure e-Mails with KfW via GINAmail.

You will need a valid e-mail address and a browser to use GINAmail.

To use GINAmail please follow the instructions in the manual: manual encryption EN.

KfW Certificate Policy

This document provides KfW Certificate Policy.

KfW Root Certificate: (Generation 03)

KfW Root CA 03

KfW External Root CA 03

KfW Sub-CA Certificates

KfW User CA 03.1

KfW Bankpartner Sub-CA Certificates

Bankdurchleitung Online (BDO)

Open Banking Bildung (OBB)

Certificate Revocation lists (CRL)

KfW creates and publishes regularly or on demand Certificate Revocation Lists.