openssl_pkcs7_verify()
openssl_pkcs7_verify - Verifies the signature of an S/MIME signed message
Syntax
mixed openssl_pkcs7_verify (
string $filename,
int $flags,
string $outfilename,
array $cainfo,
string $extracerts,
string $content)
Arguments
- filename - Path to the message.
- flags - flags can be used to affect how the signature is verified - see PKCS7 constantsfor more information.
- outfilename - If the outfilename 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.
- cainfo - If the cainfo is specified, it should hold information about the trusted CA certificates to use in the verification process - see certificate verificationfor more information about this parameter.
- extracerts - If the extracerts 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.
Description
openssl_pkcs7_verify() reads the S/MIME message contained in the given file and examines the digital signature.
Version
PHP 4.0.6, 5
Return value
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.
