SYSTEM, TERMINAL, AND METHOD FOR DIGITAL ELECTROCARDIOGRAM AUTHENTICATION

• US 20160360998A1
• Filed: 06/09/2016
• Published: 12/15/2016
• Est. Priority Date: 06/11/2015
• Status: Active Grant

• Current Assignee: Moon-Seog Jun
• Original Assignee: Moon-Seog Jun
• Inventors: JUN, Moon-Seog
• Granted Patent: US 9,750,435 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 5/117 Identification of persons methods or arrangements for recognising patterns, e.g. fingerprints, G06F18/00, G06V40/00; identification of persons by analysing their voice or speech G10L17/00
• CPC Class Codes: A61B 5/282 Holders for multiple electrodes for introduction into the body A61B5/287
• CPC Class Codes: A61B 5/316 Modalities, i.e. specific diagnostic methods
• CPC Class Codes: A61B 5/318 Heart-related electrical modalities, e.g. electrocardiography [ECG]
• CPC Class Codes: A61B 5/35 by template matching
• CPC Class Codes: A61B 5/352 Detecting R peaks, e.g. for synchronising diagnostic apparatus; Estimating R-R interval
• CPC Class Codes: A61B 5/681 Wristwatch-type devices

Abstract

Provided is an electrocardiogram (ECG) biometric authentication system that performs biometric authentication using biometric information having unique values for each client includes one or more client terminals and a key distribution center (KDC) that uses ECG information of the one or more client terminals to issue a digital certificate. According to the configuration of the electrocardiogram biometric authentication system, security is enhanced.

Claims

1. A system for electrocardiogram (ECG) biometric authentication which is a biometric authentication system that performs biometric authentication using cyclical biometric voltage information having unique values for each client, the system comprising:

one or more client terminals; and

a key distribution center (KDC) configured to use ECG information of the one or more client terminals to issue a digital certificate.

2. The system of claim 1, wherein the client terminal includes:

an ECG measurement sensor formed of one or more biometric electrodes;

an ECG signal acquisition unit configured to collect analog ECG signals from the one or more biometric electrodes;

an ECG signal processing unit configured to encode the analog ECG signals into digital signals; and

an ECG signal communication unit configured to encrypt digital codes and transmit and receive digital codes from the KDC.

3. The system of claim 2, wherein, in encoding the analog ECG signals into digital signals in the ECG signal processing unit, the result is output as quantum codes which are decimals with five digits formed only of “

1(or high),”

0(or middle),” and

“

−

1(or low)”

.

4. The system of claim 3, wherein the analog ECG signals form a continuous ECG waveform curve in which upward pulses and downward pulses alternate, and the ECG waveform curve is formed by including a P-wave, a Q-wave, an R-wave, an S-wave, a T-wave, and a U-wave, in that order.

5. The system of claim 4, wherein, as a result of extracting and quantizing a feature point of each wave, the digital codes are formed of 32-bit P-wave information, 32-bit Q-wave information, 32-bit R-wave information, 32-bit S-wave information, 32-bit T-wave information, 32-bit QRS complex information and 32-bit PIN information.

6. The system of claim 5, wherein the digital codes are utilized to encrypt a private key in an asymmetric cryptographic system of a public key infrastructure (PKI).

7. A terminal for electrocardiogram (ECG) biometric authentication, the terminal comprising:

a smart band configured to surround a client'"'"'s wrist, have one or more biometric electrodes coming into contact with skin of the wrist embedded therein, and detect analog ECG electrical signals through the one or more biometric electrodes; and

a smart watch electrically connected to the one or more biometric electrodes to collect the analog ECG electrical signals and encode the analog ECG electrical signals into digital signals.

8. The terminal of claim 7, wherein:

the analog ECG electrical signals form an ECG waveform curve including a P-wave, a Q-wave, an R-wave, an S-wave, and a T-wave; and

the digital codes are binary codes including P-wave information, Q-wave information, R-wave information, S-wave information, and T-wave information by quantizing the P-wave, the Q-wave, the R-wave, the S-wave, and the T-wave using a grid box.

9. The terminal of claim 8, wherein the digital codes further include QRS complex information.

10. A method for a client terminal to be issued with a certificate from a key distribution center (KDC) using an electrocardiogram (ECG), the method comprising:

collecting, by the client terminal, analog ECG waveform information in which upward pulses and downward pulses are displayed as a continuous curve;

quantizing the analog ECG waveform information so that the analog ECG waveform information has discontinuous and unique ECG information values; and

binarizing the ECG information values which has become unique by the quantization to generate a binary code.

11. The method of claim 10, further comprising:

changing the binary code into a private key and encrypting the private key;

transmitting, by the client terminal, the encryption result to a key distribution center (KDC);

decrypting a public key, in the KDC, by applying the encryption result to a Rivest-Shamir-Adleman (RSA)/Elliptic Curve Cryptosystem (ECC) algorithm;

transmitting the public key to the client terminal from the KDC; and

executing authentication, by the client terminal, using the public key.

12. The method of claim 11, wherein, in decrypting the encryption result to generate the public key, the KDC uses the RSA/ECC algorithm to issue ECG biometric private key verification and an X.509 certificate.