Verifies the signature.
If istream is a clearsigned stream, you should pass null as the sigstream
parameter and may wish to provide an ostream argument for GMime to output the original plaintext into. Otherwise
sigstream is assumed to be the signature stream and is used to verify the integirity of the istream.
| this | |
| flags | |
| istream |
input stream |
| sigstream |
detached-signature stream |
| ostream |
output stream for use with encapsulated signature input streams |
|
a SignatureList object containing the status of each signature or null on error. |