陕西科技大学学报(自然科学版)
陝西科技大學學報(自然科學版)
협서과기대학학보(자연과학판)
JOURNAL OF SHAANXI UNIVERSITY OF SCIENCE & TECHNOLOGY
2014年
6期
145-150
,共6页
超椭圆曲线%有限域%平移变换%除子矩阵%安全性能
超橢圓麯線%有限域%平移變換%除子矩陣%安全性能
초타원곡선%유한역%평이변환%제자구진%안전성능
hyperelliptic curve%finite fields%translation transformation%divisor matrix%safe-ty performance
对超椭圆曲线数字签名算法引入平移变换、除子矩阵进行了三种方式的改进:对获得公钥的过程增加了平移变换;将计算过程中Jaco bian群除子变换成Jaco bian群上的除子矩阵,增加计算复杂度;通过对除子矩阵增加平移变换进一步提高安全性。在大素数有限域上实现了超椭圆曲线数字签名算法以及改进后的算法,从安全性能和时间性能上对改进的算法进行了分析,突显了改进的数字签名算法的安全性。
對超橢圓麯線數字籤名算法引入平移變換、除子矩陣進行瞭三種方式的改進:對穫得公鑰的過程增加瞭平移變換;將計算過程中Jaco bian群除子變換成Jaco bian群上的除子矩陣,增加計算複雜度;通過對除子矩陣增加平移變換進一步提高安全性。在大素數有限域上實現瞭超橢圓麯線數字籤名算法以及改進後的算法,從安全性能和時間性能上對改進的算法進行瞭分析,突顯瞭改進的數字籤名算法的安全性。
대초타원곡선수자첨명산법인입평이변환、제자구진진행료삼충방식적개진:대획득공약적과정증가료평이변환;장계산과정중Jaco bian군제자변환성Jaco bian군상적제자구진,증가계산복잡도;통과대제자구진증가평이변환진일보제고안전성。재대소수유한역상실현료초타원곡선수자첨명산법이급개진후적산법,종안전성능화시간성능상대개진적산법진행료분석,돌현료개진적수자첨명산법적안전성。
In this paper translation transformation and divisor matrix are introduced to im‐prove hyperelliptic curve digital signature algorithm in three ways :adding translation trans‐formation to the process of obtaining the public key ,transforming the Jacobian group to divi‐sor matrix in the computation process and increasing the computational complexity ,adding translation transformation to divisor matrix to improve further safety .Hyperelliptic curve digital signature algorithm and the improved algorithm have been realized in the big prime number finite fields in this paper .What′s more ,the improved algorithm is analyzed from the safety performance and time performance ,w hich highlights the safety performance of the im‐proved digital signature algorithm .