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en:certificates [2022/12/01 15:32] – Wolfgang Pempeen:certificates [2023/01/06 14:30] – Wolfgang Pempe
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 === Own/Local CA === === Own/Local CA ===
-For institutions/organisations participating in the DFN-AAI that operate a larger, two- to three-digit number of entities (e.g. local SPs) in the DFN-AAI, it may be an option to set up a local CA to issue certificates for SAML-based communication. \\ +For certificates from a local CA the same rues apply as for self-signed certificates, see below.
-**Note:** If required, local CAs can also be hosted by the DFN-PCA (contact: https://www.pki.dfn.de/pkikontakt/). \\ +
-**Important:** A local CA must be operated with great care! In particular, it must be ensured that the private key, which is used to sign the certificates to be issued, is particularly well protected! \\ +
-A good guide to operating your own CA can be found [[https://networklessons.com/uncategorized/openssl-certification-authority-ca-ubuntu-server|here]]. \\ +
-Parameters to be considered: +
-  * Root Private Key: RSA, 4096 Bit +
-  * Validity of the root certificate: 20 years (recommended) +
-  * Validity of the issued certificates: max. 39 months +
-  * Key length of the issued certificates: 4096 bit +
-  * Signature algorithm: sha256 +
-  * The CN of the issued certificate corresponds to the FQDN of the respective IdP/SP host.+
  
 === Self-signed Certificates === === Self-signed Certificates ===
 Self-signed certificates may be used if they are not valid for longer than 39 months. For production, the CN (or the subject alternative names) of the certificate must at least contain the domain name of the SP. Ideally it should contain the complete host name. As for the technical details, please refer to the online documentation of [[https://www.switch.ch/aai/guides/sp/configuration/#4|SWITCHaai]]. Please note that the period of validity must be set at 3 years or a maximum of 39 months (keygen tool: ''-y 3'', openssl: ''-days 1170'').  Self-signed certificates may be used if they are not valid for longer than 39 months. For production, the CN (or the subject alternative names) of the certificate must at least contain the domain name of the SP. Ideally it should contain the complete host name. As for the technical details, please refer to the online documentation of [[https://www.switch.ch/aai/guides/sp/configuration/#4|SWITCHaai]]. Please note that the period of validity must be set at 3 years or a maximum of 39 months (keygen tool: ''-y 3'', openssl: ''-days 1170''). 
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 <callout color="#ff9900" title="Exceptions"> <callout color="#ff9900" title="Exceptions">
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