Details
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Type:
New Feature
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Status: Closed
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Priority:
Major
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Resolution: Fixed
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Affects Version/s: 4.0 - Beta
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Fix Version/s: 4.3
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Component/s: Core/Parsing
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Labels:None
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Environment:any.
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Assignee Priority:P3
Description
Beginning in PDF 1.6 specification the Advanced Encryption Standard (AES) algorithm was added to the general encryption algorithm for standard encryption. AES is a symmetric block cipher. This new encryption algorithm is document in the specification and is supported by the Java Cryptography extension (JCE).
We have no examples of this type of encryption being used without crypt filters, http://jira.icefaces.org/browse/PDF-122 but we need to implement the algorithm before we can successfully implement crypt filters. Adobe acrobat 7.0 and later use AES 128 and 256 encryption algorthms.
We have no examples of this type of encryption being used without crypt filters, http://jira.icefaces.org/browse/PDF-122 but we need to implement the algorithm before we can successfully implement crypt filters. Adobe acrobat 7.0 and later use AES 128 and 256 encryption algorthms.
Issue Links
- blocks
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PDF-122
Crypt Filter Support
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- Closed
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Activity
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Crypt filters AES 256.
Show
Patrick Corless
added a comment - Crypt filters AES 256.
Unfortunately no time to fit into 4.2.
Show
Patrick Corless
added a comment - Unfortunately no time to fit into 4.2.
Another sample file posted here, http://www.icefaces.org/JForum/posts/list/0/19715.page
(menu.pdf)
Show
Patrick Corless
added a comment - Another sample file posted here, http://www.icefaces.org/JForum/posts/list/0/19715.page
(menu.pdf)
I've updated our encryption handler to handles the AESV2 cases. From what I can tell and test with we now support 128-bit and 192-bit AES in CBC mode. However there is still more work to get 256-bit AES working which was introduced in the 9.0 specification.
Show
Patrick Corless
added a comment - I've updated our encryption handler to handles the AESV2 cases. From what I can tell and test with we now support 128-bit and 192-bit AES in CBC mode. However there is still more work to get 256-bit AES working which was introduced in the 9.0 specification.
I've addressed basic AES support which I can test at 128 bit. I'm not sure about 192 bit (no example), for know for sure that 256 bit is not working correctly. I'll will create a new bug for 256 bit aes encryption.
Show
Patrick Corless
added a comment - I've addressed basic AES support which I can test at 128 bit. I'm not sure about 192 bit (no example), for know for sure that 256 bit is not working correctly. I'll will create a new bug for 256 bit aes encryption.
Crypt filters 128Bit AES