openssl_pkcs7_decrypt

(PHP 4 >= 4.0.6, PHP 5, PHP 7, PHP 8)

openssl_pkcs7_decrypt — 解密一个 S/MIME 加密的消息

说明

openssl_pkcs7_decrypt(
    string $input_filename,
    string $output_filename,
    #[\SensitiveParameter] OpenSSLCertificate|string $certificate,
    #[\SensitiveParameter] OpenSSLAsymmetricKey|OpenSSLCertificate|array|string|null $private_key = null
): bool

使用由 certificate 和 private_key 指定的证书和与之关联的私钥解密 input_filename 文件中包含的 S/MIME 加密消息。

参数

input_filename

output_filename

解密的消息将被存入的文件中，以 output_filename 命名。

certificate

private_key

返回值

成功时返回 true， 或者在失败时返回 false。

更新日志

版本 说明
8.0.0 private_key 现在接受 OpenSSLAsymmetricKey 或 OpenSSLCertificate 实例；之前接受类型 OpenSSL key 或 OpenSSL X.509 CSR 的 resource。

示例

示例 #1 openssl_pkcs7_decrypt() 示例

<?php
// $cert and $key are assumed to contain your personal certificate and private
// key pair, and that you are the recipient of an S/MIME message
$infilename = "encrypted.msg"; // this file holds your encrypted message
$outfilename = "decrypted.msg"; // make sure you can write to this file

if (openssl_pkcs7_decrypt($infilename, $outfilename, $cert, $key)) {
echo "decrypted!";
} else {
echo "failed to decrypt!";
}
?>

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oliver at anonsphere dot com
13 years ago
If you want to decrypt a received email, keep in mind that you need the full encrypted message including the mime header.

<?php

// Get the full message
$encrypted = imap_fetchmime($stream, $msg_number, "1", FT_UID);
$encrypted .= imap_fetchbody($stream, $msg_number, "1", FT_UID);

// Write the needed temporary files
$infile = tempnam("", "enc");
file_put_contents($infile, $encrypted);
$outfile = tempnam("", "dec");

// The certification stuff
$public = file_get_contents("/path/to/your/cert.pem");
$private = array(file_get_contents("/path/to/your/cert.pem"), "password");

// Ready? Go!
if(openssl_pkcs7_decrypt($infile, $outfile, $public, $private))
{
// Decryption successful
echo file_get_contents($outfile);
}
else
{
// Decryption failed
echo "Oh oh! Decryption failed!";
}

// Remove the temp files
@unlink($infile);
@unlink($outfile);

?>
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备份地址：http://www.lvesu.com/blog/php/function.openssl-pkcs7-decrypt.php