openssl_cms_sign

(PHP 8)

openssl_cms_sign — Sign a file

说明

openssl_cms_sign(
    string $input_filename,
    string $output_filename,
    OpenSSLCertificate|string $certificate,
    OpenSSLAsymmetricKey|OpenSSLCertificate|array|string $private_key,
    ?array $headers,
    int $flags = 0,
    int $encoding = OPENSSL_ENCODING_SMIME,
    ?string $untrusted_certificates_filename = null
): bool

This function signs a file with an X.509 certificate and key.

参数

input_filename

The name of the file to be signed.

output_filename

The name of the file to deposit the results.

certificate

The signing certificate. See Key/Certificate parameters for a list of valid values.

private_key

The key associated with certificate. See Key/Certificate parameters for a list of valid values.

headers

An array of headers to be included in S/MIME output.

flags

Flags to be passed to cms_sign().

encoding

The encoding of the output file. One of OPENSSL_CMS_SMIME, OPENSLL_CMS_DER or OPENSSL_CMS_PEM.

untrusted_certificates_filename

Intermediate certificates to be included in the signature.

返回值

成功时返回 true， 或者在失败时返回 false。

范例

示例 #1 openssl_cms_sign() example

<?php

openssl_cms_sign('input.txt', 'output.txt', 'file://cert.pem', 'file://privkey.pem', null, OPENSSL_CMS_BINARY, OPENSSL_ENCODING_DER, 'chain.pem');
?>