1. A method for ensuring security and privacy of communications over a wireless network of cognitive radios (\u201cCRN\u201d), the method comprising encrypting network management and control messages transmitted over the CRN.
2. The method of claim 1, wherein elliptic curve cryptography (ECC) is applied in encrypting the network management and control messages.
3. The method of claim 1, wherein the network management and control messages include at least one of:
node identifying information;
node location information; and
information regarding signals detected by a node.
4. The method of claim 1, wherein the network management and control messages transmitted over the CRN are encrypted using a \u201cmanagement-message-protection-key (\u201cMMP\u201d), the MMP being used only for that purpose.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed is:
1. A ferrule holder assembly for an optical-fiber-end-face grinding apparatus, comprising:
a ferrule holder board provided to be moved upward and downward in parallel with a grinding board of the optical-fiber-end-face grinding apparatus;
a ferrule sleeve provided at said ferrule holder board for receiving and supporting an optical fiber ferrule while putting the tip thereof at the grinding board;
an adapter for retaining the optical fiber ferrule or a connector for supporting said optical fiber ferrule in a state in which said optical fiber ferrule is inserted into said ferrule sleeve; and
urging means for urging said adapter in a direction opposite to said grinding board from said ferrule holder board.
2. A ferrule holder assembly for an optical-fiber-end-face grinding apparatus according to claim 1, wherein said adapter retains and supports said optical fiber ferrule or said connector for supporting the optical fiber ferrule at said ferrule holder board in such a manner that the ferrule can be slid to said ferrule sleeve in the axial direction thereof, its revolution is restricted, and the upward movement limit is specified relative to said ferrule holder board.
3. A ferrule holder assembly for an optical-fiber-end-face grinding apparatus according to claim 1, wherein a retaining part of said adapter has a hook structure corresponding to a retaining member of a plug-type optical fiber connector housing.
4. A ferrule holder assembly for an optical-fiber-end-face grinding apparatus according to claim 1, wherein a retaining part of said adapter has a screw structure corresponding to a retaining member of a plug-type optical-fiber connector housing.
5. A ferrule holder assembly for an optical-fiber-end-face grinding apparatus according to any one of claims 1 to 4, wherein said ferrule holder assembly for the optical-fiber-end face grinding apparatus is a ferrule holder assembly for an optical-fiber-end face grinding apparatus for inclined grinding, the attaching angle of said adapter is the same as that of said ferrule sleeve, and a guide key groove of the adapter is formed only at one side.
6. A ferrule holder assembly for an optical-fiber-end-face grinding apparatus according to any one of claims 1, 2, 3, and 5, wherein said urging means is a coil spring and the force of said spring is smaller than the urging force of springs assembled to said connector plug itself.
7. A ferrule holder assembly for an optical-fiber-end-face grinding apparatus according to any one of claims 1, 2, 3, 5, and 6, wherein the means for urging the adapter to the holder is a coil spring and the weight is 550 gf or less appropriate for spherical grinding.