| 摘要 |
The present invention provides a method, system, and computer program product for transparent on-demand certificate provisioning for secure email. The method comprises: generating a keypair and a self-signed certificate; requesting a certificate from a certification authority; temporarily securing email using the self-signed certificate; and securing email using the requested certificate, after receipt of the requested certificate from the certification authority. The present inventions uses self-signed certificates as an initial, interim security mechanism, provides automatic submission of certificate requests and renewal requests, provides an administrative policy to specify when keypairs and self-signed certificates are generated by a user's client system, and when certificate requests are submitted, and provides automatic transition from end-user defined trust to delegated trust based upon CA-issued certificates.
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