openssl_pkcs7_verify
(PHP 4 >= 4.0.6, PHP 5, PHP 7)
openssl_pkcs7_verify — Verifies the signature of an S/MIME signed message
Description
openssl_pkcs7_verify ( string $filename , int $flags [, string $outfilename [, array $cainfo [, string $extracerts [, string $content [, string $p7bfilename ]]]]] ) : mixed
openssl_pkcs7_verify() reads the S/MIME message contained in the given file and examines the digital signature.
Parameters
-
filename -
Path to the message.
-
flags -
flagscan be used to affect how the signature is verified - see PKCS7 constants for more information. -
outfilename -
If the
outfilenameis 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. -
cainfo -
If the
cainfois 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. -
extracerts -
If the
extracertsis 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
contentthat will be filled with the verified data, but with the signature information stripped. -
p7bfilename
Return Values
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.
Changelog
| Version | Description |
|---|---|
| 7.2.0 | The p7bfilename parameter was added. |
Notes
Note: As specified in RFC 2045, lines may not be longer than 76 characters in the
filenameparameter.
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Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/function.openssl-pkcs7-verify.php