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Application of Elliptic Curve Algorithms in Software Certification

Author: ZhangPeng
Tutor: LiaoShuJian
School: Taiyuan University of Technology
Course: Communication and Information System
Keywords: Data security Elliptic Curve Elliptic Curve Cryptography (ECC) Registration code
CLC: TN918.1
Type: Master's thesis
Year: 2010
Downloads: 124
Quote: 1
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Abstract


The software is a digital technology-intensive products , software developers need to spend a lot of manpower and material resources , but the copy of the software is quite easy . Software copyright protection has been a very difficult issue . Common software protection serial number protection authority protection . If you crack the software more than the cost it takes to buy software , then this effect has reached the encryption effect . Security is based on elliptic curve cryptography (ECC) of the intractability of the elliptic curve discrete logarithm problem . ECC system password security strength per bit . Compared with other asymmetric encryption system , elliptic curve cryptography system is not only safe , but also has the advantages of small computational load , short key size , occupied bandwidth , so . Elliptic curve cryptography system is considered to be the next generation of the most common public key cryptography system . In public-key cryptosystem , elliptic curve encryption algorithm and the RSA algorithm compared with occupied bandwidth richer parameter selection , etc. , in the prime field and finite field . In recent years , more and more elliptical encryption algorithm to encrypt and decrypt the field of application of the results . Mainly concentrated in the prime field Fp and finite field F2m classical mathematical model . In this paper, the basis of elaborate mathematical theory of elliptic encryption algorithm , elliptic encryption algorithm in the prime number field Fp , the mathematical model of the classic y to 2 = x to 3 ax b c language written in microsoft visual c 6.0 environment a the encryption and decryption procedures on a string of numbers (including characters ) . This program simulates the function of the elliptic curve algorithm (ECC) encryption to protect the use of a serial number . See from the program that the use of different parameters (including characters ) on the same string of numbers to be encrypted , the ciphertext generated is not the same , and the parameters can be used must be used with the encryption for the correct decryption of the ciphertext , restore get the original version. In this paper, the program demonstrates the effect of the ECC encryption and decryption .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Communicate > Confidentiality of communications and communications security > Theory
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