Verify a CMS signature

说明

openssl_cms_verify ( string $input_filename , int $flags = 0 , string|null $certificates = null , array $ca_info = [] , string|null $untrusted_certificates_filename = null , string|null $content = null , string|null $pk7 = null , string|null $sigfile = null , int $encoding = OPENSSL_ENCODING_SMIME ) : bool

This function verifies a CMS signature, either attached or detached, with the specified encoding.

参数

input_filename: The input file.
flags: Flags to pass to cms_verify().
certificates: A file with the signer certificate and optionally intermediate certificates.
ca_info: An array containing self-signed certificate authority certificates.
untrusted_certificates_filename: A file containing additional intermediate certificates.
content: A file pointing to the content when signatures are detached.
pk7
sigfile: A file to save the signature to.
encoding: The encoding of the input file. One of OPENSSL_CMS_SMIME, OPENSLL_CMS_DER or OPENSSL_CMS_PEM.

返回值

成功时返回 true，或者在失败时返回 false。