paillier-js recovery "r"

temp.js

function fixedMod(a, b) {
    let r = a.mod(b);
    if(r.isNegative())
        r = b.plus(r);
    return r;
}

//simplevariant
    decrypt(c) {
        //let phi = this._p.subtract(1).multiply(this._q.subtract(1));
        let P = L(bigInt(c).modPow(this.lambda, this.publicKey._n2), this.publicKey.n).multiply(this.mu).mod(this.publicKey.n);
        let cp = fixedMod(c.multiply(bigInt(1).subtract(this._p.multiply(this.publicKey.n))), this.publicKey._n2);
        let bn = this.publicKey.n.modInv(this.lambda);
        let r = cp.modPow(bn, this.publicKey.n);
        console.log("dec r = ", r.toString(16));
        return P;
    }

//both
decrypt(c) {
        let phi = this.mu.modInv(this.publicKey.n);
        let P = L(bigInt(c).modPow(this.lambda, this.publicKey._n2), this.publicKey.n).multiply(this.mu).mod(this.publicKey.n);
        let cp = fixedMod(c.multiply(bigInt(1).subtract(this._p.multiply(this.publicKey.n))), this.publicKey._n2);
        let bn = this.publicKey.n.modInv(phi);
        let r = cp.modPow(bn, this.publicKey.n);
        console.log("dec r = ", r.toString(16));
        return P;
    }