There are numerous other Certification Authorities that issue Class 1
X.509 Digital Certificates. The list above is solely meant to supply some
examples and is not intended to be a referral or suggestion to purchase
from any of the above organizations. These Certification Authorities allow
you to try out their products before bying. Free tests vary in terms of
More information can be obtained from the Versign Knowledgebase
for Class 1 Certificates called "Digital
ID Support". Some of the topics are:
How do I renew a Class 1 Digital ID with the Challenge Phrase?
Error: "Your digital ID name cannot be found by the underlying
How do I renew a Class 1 Digital ID without the Challenge Phrase?
Enroll for a Class 1 Digital ID.
How do I replace a Class 1 Digital ID with the Challenge Phrase?
How do I revoke a Class 1 Digital ID?
Error: Microsoft Outlook had problems encrypting this message because
the following recipients had missing or invalid certificates.
Outlook 2003 has blocked .cer attachment.
Lost Class 1 Digital ID due to computer crash.
Why am I asked for a password when using my Class 1 Digital ID?