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ed-compat.js

module.exports = {
	Verifier: Verifier,
	Signer: Signer
};

var nacl;
var stream = require('stream');
var util = require('util');
var assert = require('assert-plus');
var Buffer = require('safer-buffer').Buffer;
var Signature = require('./signature');

function Verifier(key, hashAlgo) {
	if (nacl === undefined)
		nacl = require('tweetnacl');

if (hashAlgo.toLowerCase() !== 'sha512')
		throw (new Error('ED25519 only supports the use of ' +
		    'SHA-512 hashes'));

this.key = key;
	this.chunks = [];

stream.Writable.call(this, {});
}
util.inherits(Verifier, stream.Writable);

Verifier.prototype._write = function (chunk, enc, cb) {
	this.chunks.push(chunk);
	cb();
};

Verifier.prototype.update = function (chunk) {
	if (typeof (chunk) === 'string')
		chunk = Buffer.from(chunk, 'binary');
	this.chunks.push(chunk);
};

Verifier.prototype.verify = function (signature, fmt) {
	var sig;
	if (Signature.isSignature(signature, [2, 0])) {
		if (signature.type !== 'ed25519')
			return (false);
		sig = signature.toBuffer('raw');

} else if (typeof (signature) === 'string') {
		sig = Buffer.from(signature, 'base64');

} else if (Signature.isSignature(signature, [1, 0])) {
		throw (new Error('signature was created by too old ' +
		    'a version of sshpk and cannot be verified'));
	}

assert.buffer(sig);
	return (nacl.sign.detached.verify(
	    new Uint8Array(Buffer.concat(this.chunks)),
	    new Uint8Array(sig),
	    new Uint8Array(this.key.part.A.data)));
};

function Signer(key, hashAlgo) {
	if (nacl === undefined)
		nacl = require('tweetnacl');

if (hashAlgo.toLowerCase() !== 'sha512')
		throw (new Error('ED25519 only supports the use of ' +
		    'SHA-512 hashes'));

this.key = key;
	this.chunks = [];

stream.Writable.call(this, {});
}
util.inherits(Signer, stream.Writable);

Signer.prototype._write = function (chunk, enc, cb) {
	this.chunks.push(chunk);
	cb();
};

Signer.prototype.update = function (chunk) {
	if (typeof (chunk) === 'string')
		chunk = Buffer.from(chunk, 'binary');
	this.chunks.push(chunk);
};

Signer.prototype.sign = function () {
	var sig = nacl.sign.detached(
	    new Uint8Array(Buffer.concat(this.chunks)),
	    new Uint8Array(Buffer.concat([
		this.key.part.k.data, this.key.part.A.data])));
	var sigBuf = Buffer.from(sig);
	var sigObj = Signature.parse(sigBuf, 'ed25519', 'raw');
	sigObj.hashAlgorithm = 'sha512';
	return (sigObj);
};

System Information
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File : BlackDragon /simple/function.php

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	root/root	0755	2024-03-03 10:41:56
..	dir	-	root/root	0755	2024-03-03 10:41:56
formats	dir	-	root/root	0755	2024-03-03 10:41:56
algs.js	text/plain	4.75 KB	root/root	0644	2021-09-28 10:29:46
certificate.js	text/plain	10.51 KB	root/root	0644	2021-09-28 10:29:46
dhe.js	text/plain	10.72 KB	root/root	0644	2021-09-28 10:29:46
ed-compat.js	text/plain	2.37 KB	root/root	0644	2021-09-28 10:29:46
errors.js	text/plain	2.71 KB	root/root	0644	2021-09-28 10:29:46
fingerprint.js	text/plain	3.9 KB	root/root	0644	2021-09-28 10:29:46
identity.js	text/plain	7.65 KB	root/root	0644	2021-09-28 10:29:46
index.js	text/plain	1.21 KB	root/root	0644	2021-09-28 10:29:46
key.js	text/plain	7.41 KB	root/root	0644	2021-09-28 10:29:46
private-key.js	text/plain	6.57 KB	root/root	0644	2021-09-28 10:29:46
signature.js	text/plain	7.8 KB	root/root	0644	2021-09-28 10:29:46
ssh-buffer.js	text/plain	3.79 KB	root/root	0644	2021-09-28 10:29:46
utils.js	text/plain	9.38 KB	root/root	0644	2021-09-28 10:29:46