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Who Can Perform Key Recovery?
Another issue around key recovery
involves who is authorized to do it. Giving someone key recovery privileges
implies that they are being given the ability to obtain ANYONE’s
keys, and can decrypt any private messages and perhaps even digitally
sign messages with others’ identity. Therefore, personnel given
this privilege should be highly trusted, and appropriate record-keeping
methods should be in effect to help ensure that this privilege is not
abused.
Because of the significant exposure
presented by a single person having key recovery privileges, organizations
have come up with a variety of ways to see that the cooperation of multiple
staffers is required to recover a key. This is implemented differently
depending on the key escrow system used, but usually involves some degree
of “M of N” control, which is described in the next section.
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CertiGuide for Security+ (http://www.CertiGuide.com/secplus/) on CertiGuide.com
Version 1.0 - Version Date: November 15, 2004
Adapted with permission from a work created by Tcat Houser et al.
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