openssl_cms_encrypt
PHP 8
openssl_cms_encrypt - Encrypt a CMS message
Manual
openssl_cms_encrypt(
string$input_filename,
string$output_filename,
OpenSSLCertificate|array|string$certificate,
array|null$headers,
[int$flags = 0],
[int$encoding = OPENSSL_ENCODING_SMIME],
[int$cipher_algo = OPENSSL_CIPHER_AES_128_CBC]
): bool
string$input_filename,
string$output_filename,
OpenSSLCertificate|array|string$certificate,
array|null$headers,
[int$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_DER or OPENSSL_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). |