openssl_cms_encrypt
(PHP 8)
openssl_cms_encrypt — Encrypt a CMS message
Description
string
$input_filename,string
$output_filename,OpenSSLCertificate|array|string
$certificate,?array
$headers,int
$flags = 0,int
$encoding = OPENSSL_ENCODING_SMIME,int
$cipher_algo = OPENSSL_CIPHER_AES_128_CBC): bool
This function encrypts content to one or more recipients, based on the certificates that are passed to it.
Parameters
-
input_filename -
The file to be encrypted.
-
output_filename -
The output file.
-
certificate -
Recipients to encrypt to.
-
headers -
Headers to include when S/MIME is used.
-
flags -
Flags to be passed to CMS_sign.
-
encoding -
An encoding to output. One of
OPENSSL_ENCODING_SMIME,OPENSSL_ENCODING_DERorOPENSSL_ENCODING_PEM. -
cipher_algo -
A cypher to use.
Return Values
Returns true on success or false on failure.
Changelog
| Version | Description |
|---|---|
| 8.1.0 |
The default cipher algorithm (cipher_algo) is now
AES-128-CBC (OPENSSL_CIPHER_AES_128_CBC). Previously,
PKCS7/CMS was used (OPENSSL_CIPHER_RC2_40).
|

