ECCTOOL-v1.04.rar

[about] EECTOOL is a utility implementing Elliptic Curve Cryptography(ECC). EECTOOL is freeware for non-commercial use, may be freely distributed, unmodified. Copyright remains with MR.readyu. Author: readyu#gmail.com Bug report is welcome. main fuctions: 1.generate elliptic curve, compute np/order; 2.trap small ecdlp (< 64 bits), using kangaroo method; 3.generate keypairs. 4.ECDSA/ECNR sign/verify. support curves: 1. support curve bits: 32-1024; 2. support elliptic curve over GF(p); 3. support elliptic curve over GF(2^m), with irreducible ploy: Trinomial: f(t)=t^m + t^a + 1, Pentanomial: f(t) = t^m + t^a + t^b + t^c + 1 4. support NIST-recommended elliptic curves. not support: Curve over GF(2^m) with ONB (Optimal Normal Basis). [to do] write help file. [history] v1.04 2008-08-29 ! fix a minor bug in kangaroo message display, when np is prime * improve GUI v1.03 2008-08-09 * improve ecc encrypt ! fix a minor bug in find poly v1.02 2008-07-02 + add NIST-curves cfg file + add load/save cfg + add sign.privkey recovery ! fix a minor bug in computing np v1.01 2008-05-30 fisrt public version. + add trap ecdlp v1.00 2008-03-08 # create project, not public. [CHINESE INFO] ECCTOOL v1.01 椭圆曲线类工具比较少见，因此写了这个ECCTOOL。 支持GF(P)和GF(2^m)椭圆曲线， GF(2^m)支持三项式和五项式。 包含了椭圆曲线加密最常见的两种签名算法：ECDSA和ECNR。 以及一些常用功能。