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php - PHP 致命错误：未捕获的错误：找不到类“Elliptic\EC”

问题描述

我想在 PHP 中使用椭圆曲线加密生成私钥/公钥。

我用过这个库：https ://github.com/simplito/elliptic-php

我的代码：

<?php
use Elliptic\EC;

// Create and initialize EC context
// (better do it once and reuse it)
$ec = new EC('secp256k1');

// Generate keys
$key = $ec->genKeyPair();

$publicKey = $key->getPublic('hex');
$privateKey = $key->getPrivate('hex');

// Print the keys to the console

echo "The address1 is {$publicKey}. \r\n";
echo "The address1 is {$privateKey}. \r\n";

但它向我显示了这个错误：

PHP Fatal error:  Uncaught Error: Class 'Elliptic\EC' not found in /home/istabraq/bctest/test1/keygenerator.php:6

我已经安装Composer 1.6.3 了本教程中的作曲家： https ://linuxize.com/post/how-to-install-and-use-composer-on-ubuntu-18-04/

然后安装sudo apt-get install php7.2-gmp 并安装 composer require simplito/elliptic-php，最后安装composer require simplito/bn-php，但最后一个命令行向我显示了这个输出：

Using version ^1.1 for simplito/bn-php
./composer.json has been updated
Loading composer repositories with package information
Updating dependencies (including require-dev)
Nothing to install or update
Writing lock file
Generating autoload files

我错过了什么请帮忙？我搜索问题但没有教程。

标签： phpprivate-keypublic-keyelliptic-curvegenerate

解决方案

尝试包含带有类的文件，或者如果存在vendor/autoload.php包含它，例如：

<?php

include 'path/vendor/autoload.php'; //or 'path/file/EC.php'

use Elliptic\EC;

// Create and initialize EC context
// (better do it once and reuse it)
$ec = new EC('secp256k1');

// Generate keys
$key = $ec->genKeyPair();

$publicKey = $key->getPublic('hex');
$privateKey = $key->getPrivate('hex');

// Print the keys to the console

echo "The address1 is {$publicKey}. \r\n";
echo "The address1 is {$privateKey}. \r\n";

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