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81"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.hmacSha256Hook = exports.hmacSha512Hook = exports.aes256CtrDecryptHook = exports.aes256CtrEncryptHook = exports.aes256CbcDecryptHook = exports.aes256CbcEncryptHook = exports.signRsaSha256Hook = exports.makeHmacHook = exports.sha256Hook = exports.randomHook = exports.makeAES256Hook = void 0;
const crypto = require("crypto");
function makeAES256Hook(method, mode) {
return function (key, iv, input, output) {
let result;
try {
const cipher = crypto[method](mode, key, iv);
cipher.setAutoPadding(false);
result = cipher.update(input);
const final = cipher.final();
if (final.length > 0) {
result = Buffer.concat([result, final]);
}
}
catch (e) {
return e;
}
result.copy(output);
return result.length;
};
}
exports.makeAES256Hook = makeAES256Hook;
function randomHook(buffer, count) {
try {
crypto.randomFillSync(buffer, 0, count);
}
catch (e) {
return e;
}
return count;
}
exports.randomHook = randomHook;
function sha256Hook(input, output) {
let result;
try {
result = crypto.createHash('sha256').update(input).digest();
}
catch (e) {
return e;
}
result.copy(output);
return result.length;
}
exports.sha256Hook = sha256Hook;
function makeHmacHook(algorithm) {
return (key, input, output) => {
let result;
try {
result = crypto.createHmac(algorithm, key).update(input).digest();
}
catch (e) {
return e;
}
result.copy(output);
return result.length;
};
}
exports.makeHmacHook = makeHmacHook;
function signRsaSha256Hook(key, input, output) {
let result;
try {
const signer = crypto.createSign('sha256WithRSAEncryption');
const privateKey = Buffer.from(`-----BEGIN PRIVATE KEY-----\n${key.toString('base64')}\n-----END PRIVATE KEY-----\n`);
result = signer.update(input).end().sign(privateKey);
}
catch (e) {
return e;
}
result.copy(output);
return result.length;
}
exports.signRsaSha256Hook = signRsaSha256Hook;
exports.aes256CbcEncryptHook = makeAES256Hook('createCipheriv', 'aes-256-cbc');
exports.aes256CbcDecryptHook = makeAES256Hook('createDecipheriv', 'aes-256-cbc');
exports.aes256CtrEncryptHook = makeAES256Hook('createCipheriv', 'aes-256-ctr');
exports.aes256CtrDecryptHook = makeAES256Hook('createDecipheriv', 'aes-256-ctr');
exports.hmacSha512Hook = makeHmacHook('sha512');
exports.hmacSha256Hook = makeHmacHook('sha256');
//# sourceMappingURL=crypto_callbacks.js.map