Top 10 Examples of "bigi in functional component" in JavaScript
Dive into secure and efficient coding practices with our curated list of the top 10 examples showcasing 'bigi' 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.
var QP = master.keyPair.Q
var serQP = master.keyPair.getPublicKeyBuffer()
var d1 = child.keyPair.d
var d2
var data = new Buffer(37)
serQP.copy(data, 0)
// search index space until we find it
for (var i = 0; i < ark.HDNode.HIGHEST_BIT; ++i) {
data.writeUInt32BE(i, 33)
// calculate I
var I = crypto.createHmac('sha512', master.chainCode).update(data).digest()
var IL = I.slice(0, 32)
var pIL = bigi.fromBuffer(IL)
// See hdnode.js:273 to understand
d2 = d1.subtract(pIL).mod(curve.n)
var Qp = new ark.ECPair(d2).Q
if (Qp.equals(QP)) break
}
var node = new ark.HDNode(new ark.ECPair(d2), master.chainCode, master.network)
node.depth = master.depth
node.index = master.index
node.masterFingerprint = master.masterFingerprint
return node
}Signature.signHash = function(dataSha256, privateKey, encoding = 'hex') {
if(typeof dataSha256 === 'string') {
dataSha256 = Buffer.from(dataSha256, encoding)
}
if( dataSha256.length !== 32 || ! Buffer.isBuffer(dataSha256) )
throw new Error("dataSha256: 32 byte buffer requred")
privateKey = PrivateKey(privateKey)
assert(privateKey, 'privateKey required')
var der, e, ecsignature, i, lenR, lenS, nonce;
i = null;
nonce = 0;
e = BigInteger.fromBuffer(dataSha256);
while (true) {
ecsignature = ecdsa.sign(curve, dataSha256, privateKey.d, nonce++);
der = ecsignature.toDER();
lenR = der[3];
lenS = der[5 + lenR];
if (lenR === 32 && lenS === 32) {
i = ecdsa.calcPubKeyRecoveryParam(curve, e, ecsignature, privateKey.toPublic().Q);
i += 4; // compressed
i += 27; // compact // 24 or 27 :( forcing odd-y 2nd key candidate)
break;
}
if (nonce % 10 === 0) {
console.log("WARN: " + nonce + " attempts to find canonical signature");
}
}
return Signature(ecsignature.r, ecsignature.s, i);PrivateKey.fromBuffer = function(buf) {
if (!Buffer.isBuffer(buf)) {
throw new Error("Expecting parameter to be a Buffer type");
}
if(buf.length === 33 && buf[32] === 1) {
// remove compression flag
buf = buf.slice(0, -1)
}
if (32 !== buf.length) {
throw new Error(`Expecting 32 bytes, instead got ${buf.length}`);
}
return PrivateKey(BigInteger.fromBuffer(buf));
}function verify(curve, hash, signature, Q) {
// 1.4.2 H = Hash(M), already done by the user
// 1.4.3 e = H
var e = BigInteger.fromBuffer(hash)
return verifyRaw(curve, e, signature, Q)
}function verify(curve, hash, signature, Q) {
// 1.4.2 H = Hash(M), already done by the user
// 1.4.3 e = H
var e = BigInteger.fromBuffer(hash)
return verifyRaw(curve, e, signature, Q)
}function verify(curve, hash, signature, Q) {
// 1.4.2 H = Hash(M), already done by the user
// 1.4.3 e = H
var e = BigInteger.fromBuffer(hash)
return verifyRaw(curve, e, signature, Q)
}function verify(curve, hash, signature, Q) {
// 1.4.2 H = Hash(M), already done by the user
// 1.4.3 e = H
var e = BigInteger.fromBuffer(hash)
return verifyRaw(curve, e, signature, Q)
}function recoverHash(dataSha256, encoding = 'hex') {
if(typeof dataSha256 === 'string') {
dataSha256 = Buffer.from(dataSha256, encoding)
}
if(dataSha256.length !== 32 || !Buffer.isBuffer(dataSha256)) {
throw new Error("dataSha256: 32 byte String or buffer requred")
}
const e = BigInteger.fromBuffer(dataSha256);
let i2 = i
i2 -= 27;
i2 = i2 & 3;
const Q = ecdsa.recoverPubKey(curve, e, {r, s, i}, i2);
return PublicKey.fromPoint(Q);
};static fromBuffer(buf) {
var i, r, s;
assert.equal(buf.length, 65, 'Invalid signature length');
i = buf.readUInt8(0);
assert.equal(i - 27, i - 27 & 7, 'Invalid signature parameter');
r = BigInteger.fromBuffer(buf.slice(1, 33));
s = BigInteger.fromBuffer(buf.slice(33));
return new Signature(r, s, i);
};static fromBuffer(buf) {
var i, r, s;
assert.equal(buf.length, 65, 'Invalid signature length');
i = buf.readUInt8(0);
assert.equal(i - 27, i - 27 & 7, 'Invalid signature parameter');
r = BigInteger.fromBuffer(buf.slice(1, 33));
s = BigInteger.fromBuffer(buf.slice(33));
return new Signature(r, s, i);
};