Reading the information on the CIC/passport is very meaningful in serving the life activities of citizens in Vietnam and of foreign citizens visiting Vietnam. This research is based on the operating modes, such as BAC, FACE, and EAC to read the data contained in the chip put on the Citizen Identity Card (CIC) out securely. Specifically, the authors used the BAC mode to perform safe data reading from the CIC’s chip. BAC mode uses 3DES and SHA1 algorithms to encrypt data to ensure security, so when the data are transmitted from the chip they are encrypted and decryption is performed by the application. In this paper, a complete application has been built for reading personal information stored securely on CIC. This application is built based on the BAC reading mode corresponding to CIC in Vietnam and meets the requirements of the ICAO 9303 standard, so it is able to read passports or CICs of other countries that use this standard. The performance of this application when reading data stored on fields DG1, DG2, and DG13 is improved with a speed of about 1.2s - 1.3s for all 3 data fields.
One option for a digital signature solution for devices with low memory and low bandwidth transmission over channels uses a short digital signature scheme based on Weil bilinear pairing aimed at short processing times, fast computation, and convenient deployment on applications. The computational technique of non-degenerate bilinear pairings uses supersingular elliptic curves over a finite field Fpl (where p is a sufficiently large prime number) and has the advantage of being able to avoid Weil-descent, Menezes-Okamoto-Vanstone (MOV) attacks, and attacks by the Number Field Sieve algorithm. Compared to Elliptic Curve Digital Signature Algorithm (ECDSA) digital signature schemes, generating a digital signature for a Boneh-Lynn-Shacham (BLS) scheme using Weil bilinear pairing on a supersingular elliptic curve is simple. In this study, the authors replace non-degenerate bilinear pairing calculations on a supersingular elliptic curve with a Weil pairing with PεE(Fp ), QεE(Fp1) and a higher security multiplier α=12 in the BLS short digital signature scheme. The execution time of the BLS short digital signature program showed improvement compared to the commercial ECDSA digital signature scheme.
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