Location-based security, privacy, access control and monitoring system

An apparatus comprising:

• a receiver to receive a signal from a fixed location transmitter remote from the receiver, the signal including a data key and a tamper status indicator, the tamper status indicator generated by a sensor of the fixed location transmitter, the sensor to detect tampering with the fixed location transmitter or to detect movement of the fixed location transmitter;
• and
• a computational circuitry coupled to the receiver, the computational circuitry to permit access to data based at least in part on the data key and the tamper status indicator, wherein the data key forms at least part of an encryption key and wherein the computational circuitry is to decrypt the data using the encryption key when the tamper status indicator does not indicate tampering with the fixed location transmitter.

A system comprising:

• a fixed location transmit unit to transmit a signal including a data key and a tamper status indicator, the transmit unit including a tamper sensor to detect tampering with the fixed location transmit unit or movement of the fixed location transmit unit, the transmit unit to change the tamper status indicator to active in response to the tamper sensor;
• and
• a portable receiving unit remote and separate from the fixed transmit unit to receive the signal, the receiving unit to determine an encryption key based at least in part on the data key and to decrypt encrypted data using the encryption key when the tamper status indicator is not active, the data key forming at least a part of the encryption key.