147610 - signature validation fails with "large" attachments

Status: VERIFIED DUPLICATE of bug 139561

(MailNews Core :: Attachments, defect)

Description

[John Wittkoski]

This is with 1.0.0 RC3 on Mac OS X (have not tested on other platforms)

I filed this under "Attachments", it might really be a "Security" thing,
depending where the problem is.

When receiving a signed email with an attachment, the signature is listed as
invalid if the attachment is too large. Not sure on the exact size trigger here,
but an 8K attachment shows as valid, and a 48K attachment shows as invalid.

When checking the signature I see:
"The message includes a digital signature, but the signature is invalid. There
are unknown problems with this digital signature. You should not trust the
validity of this message until you verify its contents with the sender. (1039)"

The signature is being generated correctly. It is only the validation that is
failing.

NOTE: This bug is NOT 1.0.0 RC2. When reverting to RC2 ALL the message
signatures correctly show as valid.

This may or may not be related to the fact that when you try to View->Message
Source, the message is truncated. Saving the attachment to disk seems to save
the entire attachment intact, however.

Comment 1

[Scott MacGregor]

dup'ing...

*** This bug has been marked as a duplicate of 139561 ***

Comment 2

[Trix Supremo]

verified dupe