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openssl_pkcs7_encrypt

openssl_pkcs7_encrypt

(PHP 4 >= 4.0.6, PHP 5)

openssl_pkcs7_encryptEncrypt an S/MIME message

说明

bool openssl_pkcs7_encrypt ( string $infile , string $outfile , mixed $recipcerts , array $headers [, int $flags = 0 [, int $cipherid = OPENSSL_CIPHER_RC2_40 ]] )

openssl_pkcs7_encrypt() takes the contents of the file named infile and encrypts them using an RC2 40-bit cipher so that they can only be read by the intended recipients specified by recipcerts.

参数

infile

outfile

recipcerts

Either a lone X.509 certificate, or an array of X.509 certificates.

headers

headers is an array of headers that will be prepended to the data after it has been encrypted.

headers can be either an associative array keyed by header name, or an indexed array, where each element contains a single header line.

flags

flags can be used to specify options that affect the encoding process - see PKCS7 constants.

cipherid

One of cipher constants.

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
5.0.0 The cipherid parameter was added.

范例

Example #1 openssl_pkcs7_encrypt() example

<?php
// the message you want to encrypt and send to your secret agent
// in the field, known as nighthawk.  You have his certificate
// in the file nighthawk.pem
$data = <<<EOD
Nighthawk,

Top secret, for your eyes only!

The enemy is closing in! Meet me at the cafe at 8.30am
to collect your forged passport!

HQ
EOD;

// load key
$key file_get_contents("nighthawk.pem");

// save message to file
$fp fopen("msg.txt""w");
fwrite($fp$data);
fclose($fp);

// encrypt it
if (openssl_pkcs7_encrypt("msg.txt""enc.txt"$key,
    array(
"To" => "nighthawk@example.com"// keyed syntax
          
"From: HQ <hq@example.com>"// indexed syntax
          
"Subject" => "Eyes only"))) {
    
// message encrypted - send it!
    
exec(ini_get("sendmail_path") . " < enc.txt");
}
?>


  • openssl_cipher_iv_length
  • openssl_csr_export
  • openssl_csr_export_to_file
  • openssl_csr_get_public_key
  • openssl_csr_get_subject
  • openssl_csr_new
  • openssl_csr_sign
  • openssl_decrypt
  • openssl_dh_compute_key
  • openssl_digest
  • openssl_encrypt
  • openssl_error_string
  • openssl_free_key
  • openssl_get_cipher_methods
  • openssl_get_md_methods
  • openssl_get_privatekey
  • openssl_get_publickey
  • openssl_open
  • openssl_pkcs12_export
  • openssl_pkcs12_export_to_file
  • openssl_pkcs12_read
  • openssl_pkcs7_decrypt
  • openssl_pkcs7_encrypt
  • openssl_pkcs7_sign
  • openssl_pkcs7_verify
  • openssl_pkey_export
  • openssl_pkey_export_to_file
  • openssl_pkey_free
  • openssl_pkey_get_details
  • openssl_pkey_get_private
  • openssl_pkey_get_public
  • openssl_pkey_new
  • openssl_private_decrypt
  • openssl_private_encrypt
  • openssl_public_decrypt
  • openssl_public_encrypt
  • openssl_random_pseudo_bytes
  • openssl_seal
  • openssl_sign
  • openssl_verify
  • openssl_x509_checkpurpose
  • openssl_x509_check_private_key
  • openssl_x509_export
  • openssl_x509_export_to_file
  • openssl_x509_free
  • openssl_x509_parse
  • openssl_x509_read
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