openssl_cms_verify

Verify a CMS signature.

openssl_cms_verify Function synopsis

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

Parameters

$input_filename

Typestring

The input file.

$flags

OptionalTypeintDefault value0

Flags to pass to cms_verify.

$certificates

OptionalType?stringDefault valuenull

A file with the signer certificate and optionally intermediate certificates.

$ca_info

OptionalTypearrayDefault value[]

An array containing self-signed certificate authority certificates.

$untrusted_certificates_filename

OptionalType?stringDefault valuenull

A file containing additional intermediate certificates.

$content

OptionalType?stringDefault valuenull

A file pointing to the content when signatures are detached.

$pk7

OptionalType?stringDefault valuenull

$sigfile

OptionalType?stringDefault valuenull

A file to save the signature to.

$encoding

OptionalTypeintDefault valueOPENSSL_ENCODING_SMIME

The encoding of the input file. One of OPENSSL_ENCODING_SMIME, OPENSSL_ENCODING_DER or OPENSSL_ENCODING_PEM.

Return value

Typebool

Returns true on success, false on failure