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openssl_cms_verify

(PHP 8)

openssl_cms_verify — Verify a CMS signature

Description

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

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

Parameters

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_ENCODING_SMIME, OPENSSL_ENCODING_DER or OPENSSL_ENCODING_PEM.

Return Values

Returns true on success or false on failure.

© 1997–2025 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/function.openssl-cms-verify.php