f6fac6c4bc
Fix bin/publish: use correct .env path for rspade_system Fix bin/publish script: prevent grep exit code 1 from terminating script 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
39 lines
1.1 KiB
JavaScript
Executable File
39 lines
1.1 KiB
JavaScript
Executable File
'use strict';
|
|
|
|
var BN = require('bn.js');
|
|
var randomBytes = require('randombytes');
|
|
var Buffer = require('safe-buffer').Buffer;
|
|
|
|
function getr(priv) {
|
|
var len = priv.modulus.byteLength();
|
|
var r;
|
|
do {
|
|
r = new BN(randomBytes(len));
|
|
} while (r.cmp(priv.modulus) >= 0 || !r.umod(priv.prime1) || !r.umod(priv.prime2));
|
|
return r;
|
|
}
|
|
|
|
function blind(priv) {
|
|
var r = getr(priv);
|
|
var blinder = r.toRed(BN.mont(priv.modulus)).redPow(new BN(priv.publicExponent)).fromRed();
|
|
return { blinder: blinder, unblinder: r.invm(priv.modulus) };
|
|
}
|
|
|
|
function crt(msg, priv) {
|
|
var blinds = blind(priv);
|
|
var len = priv.modulus.byteLength();
|
|
var blinded = new BN(msg).mul(blinds.blinder).umod(priv.modulus);
|
|
var c1 = blinded.toRed(BN.mont(priv.prime1));
|
|
var c2 = blinded.toRed(BN.mont(priv.prime2));
|
|
var qinv = priv.coefficient;
|
|
var p = priv.prime1;
|
|
var q = priv.prime2;
|
|
var m1 = c1.redPow(priv.exponent1).fromRed();
|
|
var m2 = c2.redPow(priv.exponent2).fromRed();
|
|
var h = m1.isub(m2).imul(qinv).umod(p).imul(q);
|
|
return m2.iadd(h).imul(blinds.unblinder).umod(priv.modulus).toArrayLike(Buffer, 'be', len);
|
|
}
|
|
crt.getr = getr;
|
|
|
|
module.exports = crt;
|