Digital signature systems based on smart card and fingerprint feature |
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Authors: | You Lin Xu Maozhi Zheng Zhiming |
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Institution: | 1. Coll. of Communication Engineering, Hangzhou Dianzi Univ., Hangzhou 310018, P. R. China 2. School of Mathematics, Peking University, Beijing 100871, P. R. China 3. School of Science, Beijing Univ. of Aeronautics and Astronautics, Beijing 100083, P. R. China |
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Abstract: | Two signature systems based on smart cards and fingerprint features are proposed. In one signature system, the cryptographic key is stored in the smart card and is only accessible when the signer's extracted fingerprint features match his stored template. To resist being tampered on public channel, the user's message and the signed message are encrypted by the signer's public key and the user's public key, respectively. In the other signature system, the keys are generated by combining the signer's fingerprint features, check bits, and a rememberable key, and there are no matching process and keys stored on the smart card. Additionally, there is generally more than one public key in this system, that is, there exist some pseudo public keys except a real one. |
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Keywords: | digital signature fingerprint feature error-correcting code cryptographic key smart card |
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