我知道这是一个很具体的问题,但我想PHP和使用基于2个库,似乎声音的椭圆曲线Diffie-Hellman算法(ECDH)的客户端之间交换密钥:
https://github.com/mdanter/phpecc为PHP的一部分,
http://www-cs-students.stanford.edu/~tjw/jsbn/ecdh.html为JS部分。
看来,参数(如可以在第二个演示中可以看出),只是不适合在:(1)马蒂亚斯Danter库!
我的尝试:
一个。 产生在PHP爱丽丝公钥
湾 取x和从(一)y值,并把在JS演示页斯坦福到位爱丽丝领域
C。 从第(二)Bob的公共点和私有密钥产生
d。 重新运行PHP中的(一),但现在重新Alice的属性以前的运行(我不得不在马蒂亚斯Danter类添加一些setter方法),然后使用Bob的公共价值和秘密密钥给Bob重置为JavaScript的价值观
即 导入密钥和比较
但是PHP捕获了一个错误:
Fatal error: Uncaught exception 'ErrorException' with message 'Curve CurveFp Object
( [a:protected] => -3 [b:protected] =>
2455155546008943817740293915197451784769108058161191238065 [prime:protected] =>
6277101735386680763835789423207666416083908700390324961279 ) does not contain point
( 1328803036204499271979785126753219480492435117174 ,
-228023147101697490181439300085858154675358736333 )' in
/var/www/users/test/php/tests/ext/phpecc-master/classes/Point.php:53
搜索我的代码,我发现是什么原因造成的错误:它是由Alice的公用密钥的计算过程:
public function calculateKey() {
$this->agreed_key = Point::mul($this->secret, $this->receivedPubPoint)->getX();
}
(从JavaScript)Bob的公共密钥存储在EcDH::receivedPubPoint
并生成错误!
下面是一些identation(ECDH类)对象爱丽丝:
Alice:
EcDH Object
(
[generator:EcDH:private] => Point Object
(
[curve] => CurveFp Object
(
[a:protected] => -3
[b:protected] => 2455155546008943817740293915197451784769108058161191238065
[prime:protected] => 6277101735386680763835789423207666416083908700390324961279
)
[x] => 602046282375688656758213480587526111916698976636884684818
[y] => 174050332293622031404857552280219410364023488927386650641
[order] => 6277101735386680763835789423176059013767194773182842284081
)
[pubPoint:EcDH:private] => Point Object
(
[curve] => CurveFp Object
(
[a:protected] => -3
[b:protected] => 2455155546008943817740293915197451784769108058161191238065
[prime:protected] => 6277101735386680763835789423207666416083908700390324961279
)
[x] => 1230571492519579244570075682716266141492045436832711426918
[y] => 925696034592317781055362853857916815608433923236519324844
[order] =>
)
[receivedPubPoint:EcDH:private] =>
[secret:EcDH:private] => 14506874945990177925841757912817895350330843517362
[agreed_key:EcDH:private] =>
)
我的看法是,JavaScript的公共价值是不正确的,由于在“椭圆曲线参数”在执行方式领域http://www-cs-students.stanford.edu/~tjw/jsbn/ecdh.html 。
通过搜索我越发现,这个js与PHP版本相比,斯坦福大学的代码块是有问题的:
// ECCurveFp
// constructor
function ECCurveFp(q,a,b) {
this.q = q;
this.a = this.fromBigInteger(a);
this.b = this.fromBigInteger(b);
this.infinity = new ECPointFp(this, null, null);
}
// ----------------
// SECNamedCurves
function secp192k1() {
// p = 2^192 - 2^32 - 2^12 - 2^8 - 2^7 - 2^6 - 2^3 - 1
var p = fromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFEE37");
var a = BigInteger.ZERO;
var b = fromHex("3");
//byte[] S = null;
var n = fromHex("FFFFFFFFFFFFFFFFFFFFFFFE26F2FC170F69466A74DEFD8D");
var h = BigInteger.ONE;
var curve = new ECCurveFp(p, a, b);
var G = curve.decodePointHex("04"
+ "DB4FF10EC057E9AE26B07D0280B7F4341DA5D1B1EAE06C7D"
+ "9B2F2F6D9C5628A7844163D015BE86344082AA88D95E2F9D");
return new X9ECParameters(curve, G, n, h);
}
有没有什么建议?
谢谢。