Abstract:
An electronic circuit includes an operator including logic gates configured to perform either one or both of encryption and decryption operations. The electronic circuit further includes a controller configured to control the operator to operate in a first mode in which each of the logic gates outputs a first logic value during a first time period of a clock signal, and operate in a second mode in which a number of first logic gates, each of which outputs the first logic value, among the logic gates, and a number of second logic gates, each of which outputs a second logic value, among the logic gates, are maintained constant during a second time period of the clock signal, in response to a control value indicating that either one or both of the encryption and decryption operations are performed.
Abstract:
A glitch detector, an electronic device including the glitch detector, and a method of generating an alarm signal are provided. The glitch detector includes a clock generator configured to generate a clock corresponding to a power voltage, a counter configured to count the clock generated by the clock generator and to output a count value, and a comparator configured to compare a reference value with the count value output by the counter and to generate an alarm signal based on a result of the comparison.
Abstract:
A system on chip includes a central processing unit and a key manager coupled to the central processing unit. The key manager includes a random number generator configured to generate a key and a key memory configured to store the key and a user setting value associated with the key.