Dive into secure and efficient coding practices with our curated list of the top 10 examples showcasing 'blakejs' in functional components in JavaScript. Our advanced machine learning engine meticulously scans each line of code, cross-referencing millions of open source libraries to ensure your implementation is not just functional, but also robust and secure. Elevate your React applications to new heights by mastering the art of handling side effects, API calls, and asynchronous operations with confidence and precision.
export async function getContractStorage(
api: ApiPromise,
contractAddress: Address,
storageKey: Uint8Array
): Promise {
const contractInfo = await api.query.contracts.contractInfoOf(
contractAddress
);
// Return the value of the contracts storage
const storageKeyBlake2b = blake.blake2bHex(storageKey, null, 32);
return await api.rpc.state.getChildStorage(
(contractInfo as Option).unwrap().asAlive.trieId,
'0x' + storageKeyBlake2b
);
}
_generatePair(seed, accountIndex = 0) {
if (!this._isValidSeed(seed)) {
alert("This is not a valid SEED!");
return null;
}
if(!this._isValidIndexAccount(accountIndex)) {
alert("Invalid account index!");
return null;
}
let index = hex_uint8(dec2hex(accountIndex, 4)); // 00000000 - FFFFFFFF
let context = blake.blake2bInit(32);
blake.blake2bUpdate(context, hex_uint8(seed));
blake.blake2bUpdate(context, index);
let key = blake.blake2bFinal(context);
return {
public_key: accountFromHexKey(uint8_hex(nacl.sign.keyPair.fromSecretKey(key).publicKey)),
private_key: uint8_hex(key),
}
}
_generatePair(seed, accountIndex = 0) {
if (!this._isValidSeed(seed)) {
alert("This is not a valid SEED!");
return null;
}
if(!this._isValidIndexAccount(accountIndex)) {
alert("Invalid account index!");
return null;
}
let index = hex_uint8(dec2hex(accountIndex, 4)); // 00000000 - FFFFFFFF
let context = blake.blake2bInit(32);
blake.blake2bUpdate(context, hex_uint8(seed));
blake.blake2bUpdate(context, index);
let key = blake.blake2bFinal(context);
return {
public_key: accountFromHexKey(uint8_hex(nacl.sign.keyPair.fromSecretKey(key).publicKey)),
private_key: uint8_hex(key),
}
}
_generatePair(seed, accountIndex = 0) {
if (!this._isValidSeed(seed)) {
alert("This is not a valid SEED!");
return null;
}
if(!this._isValidIndexAccount(accountIndex)) {
alert("Invalid account index!");
return null;
}
let index = hex_uint8(dec2hex(accountIndex, 4)); // 00000000 - FFFFFFFF
let context = blake.blake2bInit(32);
blake.blake2bUpdate(context, hex_uint8(seed));
blake.blake2bUpdate(context, index);
let key = blake.blake2bFinal(context);
return {
public_key: accountFromHexKey(uint8_hex(nacl.sign.keyPair.fromSecretKey(key).publicKey)),
private_key: uint8_hex(key),
}
}
label: key.label,
color: key.color,
secretKey: uint8_hex(key.priv),
});
break;
default: throw "Unsupported key type"
}
}
pack = JSON.stringify(pack);
pack = stringToHex(pack);
pack = new Buffer(pack, 'hex');
var context = blake.blake2bInit(32);
blake.blake2bUpdate(context, pack);
var checksum = blake.blake2bFinal(context);
var salt = new Buffer(nacl.randomBytes(16));
var key = pbkdf2.pbkdf2Sync(passPhrase, salt, iterations, 32, 'sha1');
var options = { mode: AES.CBC, padding: Iso10126 };
var encryptedBytes = AES.encrypt(pack, key, salt, options);
var payload = Buffer.concat([new Buffer(checksum), salt, encryptedBytes]);
// decrypt to check if wallet was corrupted during ecryption somehow
if(api.decryptAndCheck(payload).toString('hex') === false)
return api.pack(); // try again, shouldnt happen often
return payload.toString('hex');
}
exports.addressHash = function(input) {
const serializedInput = cbor.encode(input)
const firstHash = new Buffer(sha3256(serializedInput), 'hex')
const context = blake2.blake2bInit(28) // blake2b-224
blake2.blake2bUpdate(context, firstHash)
return new Buffer(blake2.blake2bFinal(context)).toString('hex')
}
_generatePair(seed, accountIndex = 0) {
if (!this._isValidSeed(seed)) {
alert("This is not a valid SEED!");
return null;
}
if(!this._isValidIndexAccount(accountIndex)) {
alert("Invalid account index!");
return null;
}
let index = hex_uint8(dec2hex(accountIndex, 4)); // 00000000 - FFFFFFFF
let context = blake.blake2bInit(32);
blake.blake2bUpdate(context, hex_uint8(seed));
blake.blake2bUpdate(context, index);
let key = blake.blake2bFinal(context);
return {
public_key: accountFromHexKey(uint8_hex(nacl.sign.keyPair.fromSecretKey(key).publicKey)),
private_key: uint8_hex(key),
}
}
const { Buffer } = require('buffer')
const blake = require('blakejs')
const minB = 0xb201
const minS = 0xb241
const blake2b = {
init: blake.blake2bInit,
update: blake.blake2bUpdate,
digest: blake.blake2bFinal
}
const blake2s = {
init: blake.blake2sInit,
update: blake.blake2sUpdate,
digest: blake.blake2sFinal
}
// Note that although this function doesn't do any asynchronous work, we mark
// the function as async because it must return a Promise to match the API
// for other functions that do perform asynchronous work (see sha.browser.js)
// eslint-disable-next-line
const makeB2Hash = (size, hf) => async (data) => {
const ctx = hf.init(size, null)
hf.update(ctx, data)
return Buffer.from(hf.digest(ctx))
}
module.exports = (table) => {
for (let i = 0; i < 64; i++) {
table[minB + i] = makeB2Hash(i + 1, blake2b)
}
'use strict'
const { Buffer } = require('buffer')
const blake = require('blakejs')
const minB = 0xb201
const minS = 0xb241
const blake2b = {
init: blake.blake2bInit,
update: blake.blake2bUpdate,
digest: blake.blake2bFinal
}
const blake2s = {
init: blake.blake2sInit,
update: blake.blake2sUpdate,
digest: blake.blake2sFinal
}
// Note that although this function doesn't do any asynchronous work, we mark
// the function as async because it must return a Promise to match the API
// for other functions that do perform asynchronous work (see sha.browser.js)
// eslint-disable-next-line
const makeB2Hash = (size, hf) => async (data) => {
const ctx = hf.init(size, null)
hf.update(ctx, data)
return Buffer.from(hf.digest(ctx))
}
module.exports = (table) => {
for (let i = 0; i < 64; i++) {
const { Buffer } = require('buffer')
const blake = require('blakejs')
const minB = 0xb201
const minS = 0xb241
const blake2b = {
init: blake.blake2bInit,
update: blake.blake2bUpdate,
digest: blake.blake2bFinal
}
const blake2s = {
init: blake.blake2sInit,
update: blake.blake2sUpdate,
digest: blake.blake2sFinal
}
// Note that although this function doesn't do any asynchronous work, we mark
// the function as async because it must return a Promise to match the API
// for other functions that do perform asynchronous work (see sha.browser.js)
// eslint-disable-next-line
const makeB2Hash = (size, hf) => async (data) => {
const ctx = hf.init(size, null)
hf.update(ctx, data)
return Buffer.from(hf.digest(ctx))
}
module.exports = (table) => {
for (let i = 0; i < 64; i++) {
table[minB + i] = makeB2Hash(i + 1, blake2b)