2.2.4 x-irm-cantdecrypt Header

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This protocol uses the x-irm-cantdecrypt response header to indicate that the requested resource cannot be returned because the IRM protector is unable to decrypt the requested resource.

This header is defined in ABNF syntax as follows.<5>

 irm-cantdecrypt-header = "x-irm-cantdecrypt" ":" irm-information-value
 irm-information-value = 1*TEXT

The irm-information-value element is a text string that specifies the IRM information of the requested resource. This string is not significant to protocol operation and is intended only for display and logging purposes.