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openssl_pkcs7_verify

(PHP 4 >= 4.0.6, PHP 5, PHP 7, PHP 8)

openssl_pkcs7_verifyVerifies the signature of an S/MIME signed message

Descrição

openssl_pkcs7_verify(
    string $input_filename,
    int $flags,
    ?string $signers_certificates_filename = null,
    array $ca_info = [],
    ?string $untrusted_certificates_filename = null,
    ?string $content = null,
    ?string $output_filename = null
): bool|int

openssl_pkcs7_verify() reads the S/MIME message contained in the given file and examines the digital signature.

Parâmetros

input_filename

Path to the message.

flags

flags can be used to affect how the signature is verified - see PKCS7 constants for more information.

signers_certificates_filename

If the signers_certificates_filename is specified, it should be a string holding the name of a file into which the certificates of the persons that signed the messages will be stored in PEM format.

ca_info

If the ca_info is specified, it should hold information about the trusted CA certificates to use in the verification process - see certificate verification for more information about this parameter.

untrusted_certificates_filename

If the untrusted_certificates_filename is specified, it is the filename of a file containing a bunch of certificates to use as untrusted CAs.

content

You can specify a filename with content that will be filled with the verified data, but with the signature information stripped.

output_filename

Valor Retornado

Returns true if the signature is verified, false if it is not correct (the message has been tampered with, or the signing certificate is invalid), or -1 on error.

Registro de Alterações

Versão Descrição
8.0.0 signers_certificates_filename, untrusted_certificates_filename, content and output_filename are nullable now.
7.2.0 The output_filename parameter was added.

Notas

Nota: As specified in RFC 2045, lines may not be longer than 76 characters in the input_filename parameter.

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User Contributed Notes 1 note

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11
reg1barclay at REMOVETHIS dot live dot it
5 years ago
To verify a .p7m file with openssl_pkcs7_verify() you must convert it to S/MIME format. For example...
<?php
function der2smime($file)
{
$to=<<<TXT
MIME-Version: 1.0
Content-Disposition: attachment; filename="smime.p7m"
Content-Type: application/x-pkcs7-mime; smime-type=signed-data; name="smime.p7m"
Content-Transfer-Encoding: base64
\n
TXT;
$from=file_get_contents($file);
$to.=chunk_split(base64_encode($from));
return
file_put_contents($file,$to);
}
?>
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