PHP Manual: Decrypt a CMS message

Description

bool openssl_cms_decrypt(
    string $input_filename,
    string $output_filename,
    #[\SensitiveParameter]OpenSSLCertificatestring $certificate,
    #[\SensitiveParameter]OpenSSLAsymmetricKeyOpenSSLCertificatearraystringnull $private_key = null,
    int $encoding = OPENSSL_ENCODING_SMIME
)

Decrypts a CMS message.

Parameters

input_filename: The name of a file containing encrypted content.
output_filename: The name of the file to deposit the decrypted content.
certificate: The name of the file containing a certificate of the recipient.
private_key: The name of the file containing a PKCS#8 key.
encoding: The encoding of the input file. One of OPENSSL_ENCODING_SMIME, OPENSSL_ENCODING_DER or OPENSSL_ENCODING_PEM.

Return Values

Returns true on success or false on failure.