modprobe or insmod errors with "Required key not available"

Solution Verified - Updated -

Issue

  • When loading a kernel driver module with modprobe or insmod, the module load fails, and the following error is displayed:
FATAL: Error inserting <modulename>: Required key not available

insmod: error inserting <modulename>: -1 Required key not available

Environment

  • Red Hat Enterprise Linux 6
  • modprobe or insmod
  • Kernel module not shipped in this Red Hat Enterprise Linux kernel package

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