There is a hidden sixth argument: string pointing to a file
where the contents of the signed message should be saved.
It is very important for verifying signed and encrypted
messages from MS Outlook which uses opaque signing. After
decrypting of message you will get another MIME envelope
like this:
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
MIIM/QYJ...
Even if you use base64_decode() you will not get decrypted
message but PKCS #7 object.
BTW: How to create opaque signed message like from MS
Outlook? Switch off PKCS7_DETACHED flag (the last 0 does
it):
openssl_pkcs7_sign(
"full_path_to_message_file",
"full_path_where_to_store_signed_message_file",
"file://full_path_to_my_public_certificate.pem",
array("file://full_path_to_my_private_key.pem",
"password"),
array(),
0
);
----
Server IP: 64.246.30.37
Probable Submitter: 84.242.95.6
----
Manual Page -- http://www.php.net/manual/en/function.openssl-pkcs
7-verify.php
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