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readme, benchmarks, fix verification

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This commit is contained in:
jude
2023-04-15 14:28:13 +01:00
parent 35dbf321e9
commit ad26788927
8 changed files with 575 additions and 33 deletions
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45
static/js/modules/crypto/paillier.js
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@ -4,6 +4,25 @@ import { gcd, mod_exp } from "./math.js";
const PAILLIER = 0;
const JURIK = 1;
function RSTransform(g, a, p) {
let plainText = p.toString(16);
if (plainText.length % 2 !== 0) {
plainText = "0" + plainText;
}
let aStr = a.toString(16);
if (aStr.length % 2 !== 0) {
aStr = "0" + aStr;
}
let hasher = new jsSHA("SHAKE256", "HEX");
hasher.update(g.toString(16));
hasher.update(plainText);
hasher.update(aStr);
return BigInt("0x" + hasher.getHash("HEX", { outputLen: 2048 }));
}
class Ciphertext {
constructor(key, plainText, r, set) {
if (set !== undefined) {
@ -93,28 +112,12 @@ class Ciphertext {
}
let a = mod_exp(rp, this.pubKey.n, this.pubKey.n2);
let hasher = new jsSHA("SHAKE256", "HEX");
let plainText = this.plainText.toString(16);
if (plainText.length % 2 !== 0) {
plainText = "0" + plainText;
}
let aStr = a.toString(16);
if (aStr.length % 2 !== 0) {
aStr = "0" + aStr;
}
hasher.update(this.pubKey.g.toString(16));
hasher.update(plainText);
hasher.update(aStr);
let challenge = BigInt("0x" + hasher.getHash("HEX", { outputLen: 2048 }));
let challenge = RSTransform(this.pubKey.g, a, this.plainText);
return {
plainText: "0x" + this.plainText.toString(16),
a: "0x" + a.toString(16),
challenge: "0x" + challenge.toString(16),
proof:
"0x" +
(
@ -195,11 +198,17 @@ export class ReadOnlyCiphertext {
}
verifyNI(statement) {
let challenge = RSTransform(
this.pubKey.g,
BigInt(statement.a),
BigInt(statement.plainText)
);
let verifier = new ValueProofSessionVerifier(
this,
BigInt(statement.plainText),
BigInt(statement.a),
BigInt(statement.challenge)
challenge
);
if (verifier.verify(BigInt(statement.proof))) {

2
static/js/modules/crypto/random_primes.js
View File

@ -1,6 +1,6 @@
import { mod_exp } from "./math.js";
export const KEY_SIZE = 512;
export const KEY_SIZE = 2048;
export function cryptoRandom(bits) {
if (bits === undefined) {