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Siemens issues digital certificates ("Certificates", also known as "Digital IDs") to its employees and agents, to its known business partners and to Siemens web sites in accordance with its „Siemens Issuing CA“.
Certification Authority ("CA") contact information
The Siemens PKI is classified as critical IT infrastructure of the company and was audited and certified in accordance with ETSI TS 102042 V2.4.1.
Included in Siemens Certifcate Policy (CP)
Siemens has made the Siemens CA(s) Certificates available for downloading. Besides the own (internal) Root CA Siemens runs the "Siemens Internet CA" certified by the public "Baltimore CyberTrust Root" to establish an external trust. Please find an overview of the structure and different CA Certificates in Siemens PKI CA Hierarchy (PDF).
A special OCSP Responder is operated to provide an interface for a qualified validity check of certificates within the Siemens PKI. The OCSP responder return a signed response signifying that the certificate specified in the request is good, revoked, unknown or unauthorized. If it cannot process the request, it returns an error code. Requests for certificate which are not provided by one of the Siemens CA’s will by rejected as “unknown”.
The system can be accessed from Intranet and Internet via the URL
Siemens has made the Certificate Revocation Lists (CRL(s)) below for Certificates issued by the Siemens Issuing CA(s) available for downloading.
The Siemens CA provides a certificate test site for all valid Issuing CAs under https://catestsite.siemens.com
Siemens operates a publicly accessible Certificate Repository. In the Certificate Repository the Certificates of the Siemens PKI are stored. The Certificate Repository is available on the Internet to enable the exchange of secure e-mails with Siemens.
The Certificate Repository offers an Online Search for Siemens certificates. To retrieve Certificates directly from the Certificate Repository, it must be set up and configured as LDAP directory in the respective e-mail encryption program.
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The Certificate Repository also contains the Siemens PGP certificates. It can be used with all PGP clients supporting LDAP.