mtlcl410andClaude Opus 5.5 390b2012e4 M1: a document that encrypts only its embedded files opens without a password ...

A crypt filter whose /AuthEvent is /EFOpen needs its password only when
an embedded file is accessed (ISO 32000-2 7.6.6, Table 25). A document
whose strings and streams are in the clear (/StmF, /StrF /Identity) and
whose encrypting filters are all EFOpen ones, /EFF naming one, now opens
without a password in cos and in the renderer (hayro-syntax patch 36).

Without the password there is no file key: the embedded files' data is
held and saved as stored, and Document::embedded_files_locked and
reads_as_stored say so. Asking for such an attachment's bytes is an
error. A full save that would renumber data whose key mixes in the
object number (RC4, AES-128), or change the document's security, is
refused. The password still opens the document and its attachments.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Pq7HyDBXygTf7jcqdsjcfn

2026-11-05 22:49:48 +08:00

..

examples

chore: resolve SonarCloud maintainability issues (#4356)

2026-10-23 23:28:18 -04:00

src

M1: a document that encrypts only its embedded files opens without a password

2026-11-05 22:49:48 +08:00

tests/it

M2: a shrunk image on a turned or mirrored page snaps to whole pixels (#5530) (#5640)

2026-11-01 15:07:29 -05:00

Cargo.toml

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