openssl_pkcs7_decrypt()

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

解密一个 S/MIME 加密的消息

说明

openssl_pkcs7_decrypt(string $infilename,string $outfilename, mixed $recipcert[,mixed $recipkey]): bool

使用由$recipcert和$recipkey指定的证书和与之关联的私钥解密$infilename文件中包含的 S/MIME 加密消息

参数

$infilename

$outfilename

解密的消息将被存入的文件中，以$outfilename命名。

$recipcert

$recipkey

返回值

成功时返回TRUE，或者在失败时返回FALSE。

范例

openssl_pkcs7_decrypt()范例

<?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!";
}
?>

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);
?>