You would like to check the validity of an eMail-Signature?

What does it take? Which information do you need? You have received a digitally signed eMail from us. You are able to determine the type of method used to sign this eMail - PGP or S/MIME? Ways of verification… PGP: Has the eMail been signed by our Company key, then you should verify the key properties with the ones listed below. Key- Properties: PGP key information Name: Central_Signing_Account eMail: Crypto.Postmaster@companycrypt.com Comment: S.I.T. Secure Internet Traffic GmbH&Co.KG, IT-Security, Hannover, DE Key size: 2048 Bit Fingerprint: 827C 53B6 067E 3749 9399 17B0 49BA BBD5 C380 1DCC Valid from: 04.08.2005 until: (never expires) Has the eMail been 'personally' signed by one of our employees, then you would verify the signature in a similar way. The trustworthiness of the 'personal' key can be verified by the signature of the company key (Central Signing Account - details as above) on the employee's key. All employees keys are always being signed by our company key. S/MIME: Our S/MIME certificates are issued by TC TrustCenter. The TrustCenter CA-certificate (verifying or key identities) is already integrated in every current version of MS-Windows or MS Internet Explorer and can be found in the Windows certificate store under "Trustworthy Issuer". Based on this level of trust you can followed up the validity of our certificates in its properties. This now enables to verify the signature over the eMail. Example: The validity of the certificate is displayed there. Example: If your browser does not have the Trustcenter Class 1 CA certificate (needed to confirm the trustworthyness of of our personal certificates) you can download it via this link: TC TrustCenter Class 1 CA (.PEM)/(.DER). An instruction guide on how to import this certicicate in older browser versions is availible here.