A cryptography module includes {TAIL ~ a key store} having a plurality of storage locations for storing {HEAD ~ a private key} as k key fragments 
A cryptography module includes { TAIL ~ a key store } having a plurality of storage locations for storing { HEAD ~ a private key } as k key fragments
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH