使用 BCMath 时出错 - 调用未定义的方法 PEAR_Error::int2bin()

发布于 2024-12-21 10:06:44 字数 513 浏览 2 评论 0原文

我在使用 BCMath 时遇到此错误 -

致命错误：调用未定义的方法 PEAR_Error::int2bin() login.php 第 23 行

我尝试将 Crypt_RSA 和 BCMath 一起使用。这是我的代码 -

require_once("Crypt/RSA/MathLoader.php");
$wrapper_name = “BCMath”;
$math_obj = &Crypt_RSA_MathLoader::loadWrapper($wrapper_name);

$a = $math_obj->int2bin("6465130539297209249500692895930266194225707667564124686892613724438982507603215802636578141547940687986170708901198917318074984831856438115515743080726101");

原文

I am having this error while using BCMath -

Fatal error: Call to undefined method PEAR_Error::int2bin() in
login.php on line 23

I am trying to use Crypt_RSA and BCMath together. Here is my code -

require_once("Crypt/RSA/MathLoader.php");
$wrapper_name = “BCMath”;
$math_obj = &Crypt_RSA_MathLoader::loadWrapper($wrapper_name);

$a = $math_obj->int2bin("6465130539297209249500692895930266194225707667564124686892613724438982507603215802636578141547940687986170708901198917318074984831856438115515743080726101");

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空城之時有危險 2024-12-28 10:06:44

所以几天前我在 php 中做一些加密时遇到了类似的问题。我需要将十进制数转换为其等价的二进制数。我所做的是将其转换为十六进制，然后将其解压为十六进制编码数据。

<?php 

$a = pack("H*", convBase('6465130539297209249500692895930266194225707667564124686892613724438982507603215802636578141547940687986170708901198917318074984831856438115515743080726101', '0123456789', '0123456789ABCDEF'));

function convBase($numberInput, $fromBaseInput, $toBaseInput)
{
    if ($fromBaseInput==$toBaseInput) return $numberInput;
    $fromBase = str_split($fromBaseInput,1);
    $toBase = str_split($toBaseInput,1);
    $number = str_split($numberInput,1);
    $fromLen=strlen($fromBaseInput);
    $toLen=strlen($toBaseInput);
    $numberLen=strlen($numberInput);
    $retval='';
    if ($toBaseInput == '0123456789')
    {
        $retval=0;
        for ($i = 1;$i <= $numberLen; $i++)
            $retval = bcadd($retval, bcmul(array_search($number[$i-1], $fromBase),bcpow($fromLen,$numberLen-$i)));
        return $retval;
    }
    if ($fromBaseInput != '0123456789')
        $base10=convBase($numberInput, $fromBaseInput, '0123456789');
    else
        $base10 = $numberInput;
    if ($base10<strlen($toBaseInput))
        return $toBase[$base10];
    while($base10 != '0')
    {
        $retval = $toBase[bcmod($base10,$toLen)].$retval;
        $base10 = bcdiv($base10,$toLen,0);
    }
    return $retval;
}
?>

So i ran into a similar issue when I was doing some crypto in php just a few days ago. I needed to convert a decimal number into its binary equivalent. What I did was convert it to hex and then unpack it as hex encoded data.

<?php 

$a = pack("H*", convBase('6465130539297209249500692895930266194225707667564124686892613724438982507603215802636578141547940687986170708901198917318074984831856438115515743080726101', '0123456789', '0123456789ABCDEF'));

function convBase($numberInput, $fromBaseInput, $toBaseInput)
{
    if ($fromBaseInput==$toBaseInput) return $numberInput;
    $fromBase = str_split($fromBaseInput,1);
    $toBase = str_split($toBaseInput,1);
    $number = str_split($numberInput,1);
    $fromLen=strlen($fromBaseInput);
    $toLen=strlen($toBaseInput);
    $numberLen=strlen($numberInput);
    $retval='';
    if ($toBaseInput == '0123456789')
    {
        $retval=0;
        for ($i = 1;$i <= $numberLen; $i++)
            $retval = bcadd($retval, bcmul(array_search($number[$i-1], $fromBase),bcpow($fromLen,$numberLen-$i)));
        return $retval;
    }
    if ($fromBaseInput != '0123456789')
        $base10=convBase($numberInput, $fromBaseInput, '0123456789');
    else
        $base10 = $numberInput;
    if ($base10<strlen($toBaseInput))
        return $toBase[$base10];
    while($base10 != '0')
    {
        $retval = $toBase[bcmod($base10,$toLen)].$retval;
        $base10 = bcdiv($base10,$toLen,0);
    }
    return $retval;
}
?>

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