Side channel attack tolerance evaluation apparatus, method and program

A side channel attack tolerance evaluation apparatus that performs evaluation of tolerance to a side channel attack by using side channel information leaking from an encryption device, comprising:

• a storage unit that stores, as character data representing round processing, the side channel information that has been previously acquired by executing a predetermined encryption algorithm in an encryption device or information obtained by applying predetermined processing to the side channel information;
• a measurement unit that measures the side channel information generated from an encryption device to be evaluated;
• and
• a processing unit that calculates a correlation value between the side channel information acquired by the measurement unit and character data representing round processing stored in the storage unit and determines the processing timing of the round processing executed in the encryption device to be evaluated to thereby determine the propriety of tolerance of the encryption device to be evaluated to the side channel attack.

A side channel attack tolerance evaluation method that performs evaluation of tolerance to a side channel attack by using side channel information leaking from an encryption device, comprising:

• storing, as character data representing the type of an encryption algorithm, the side channel information that has been previously acquired by executing a predetermined encryption algorithm in an encryption device or information obtained by applying predetermined processing to the side channel information in a storage unit;
• measuring the side channel information generated from an encryption device to be evaluated;
• and
• calculating a correlation value between the acquired side channel information and character data stored in the storage unit and determining the encryption algorithm executed in the encryption device to be evaluated to thereby determine the propriety of tolerance of the encryption device to be evaluated to the side channel attack.

A computer-readable medium stored therein a side channel attack tolerance evaluation program that performs evaluation of tolerance to a side channel attack by using side channel information leaking from an encryption device, allowing a computer to execute:

• processing of storing, as character data representing the type of an encryption algorithm, the side channel information that has been previously acquired by executing a predetermined encryption algorithm in an encryption device or information obtained by applying predetermined processing to the side channel information in a storage unit;
• processing of measuring the side channel information generated from an encryption device to be evaluated;
• and
• processing of calculating a correlation value between the acquired side channel information and character data stored in the storage unit and determining the encryption algorithm executed in the encryption device to be evaluated to thereby determine the propriety of tolerance of the encryption device to be evaluated to the side channel attack.

A side channel attack tolerance evaluation method that performs evaluation of tolerance to a side channel attack by using side channel information leaking from an encryption device, comprising:

• storing, as character data representing round processing, the side channel information that has been previously acquired by executing a predetermined encryption algorithm in an encryption device or information obtained by applying predetermined processing to the side channel information in a storage unit;
• measuring the side channel information generated from an encryption device to be evaluated;
• and
• calculating a correlation value between the side channel information acquired and character data representing round processing stored in the storage unit and determines the processing timing of the round processing executed in the encryption device to be evaluated to thereby determine the propriety of tolerance of the encryption device to be evaluated to the side channel attack.

A computer-readable medium stored therein a side channel attack tolerance evaluation program that performs evaluation of tolerance to a side channel attack by using side channel information leaking from an encryption device, allowing a computer to execute:

• processing of storing, as character data representing round processing, the side channel information that has been previously acquired by executing a predetermined encryption algorithm in an encryption device or information obtained by applying predetermined processing to the side channel information;
• processing of measuring the side channel information generated from an encryption device to be evaluated;
• and
• calculating a correlation value between the side channel information acquired by the measurement unit and character data representing round processing stored in the storage unit and determines the processing timing of the round processing executed in the encryption device to be evaluated to thereby determine the propriety of tolerance of the encryption device to be evaluated to the side channel attack.