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Acrobat AES 128 Encryption

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Dharini View Drop Down
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Joined: 31 Jan 2012
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    Posted: 17 Feb 2012 at 5:34am
Hi all,

I have a question related to Acrobat AES 128 Encryption. After we encrypt any pdf using AES 128 encryption in Acrobat(7 onwards), all strings and streams that are encrypted must be of length(in bytes) which is a multiple of 16(bytes), since the block size being used by the algorithm is 16bytes. Please let me know your opinion about whether assuming the length to be always a multiple of 16 is logical or not.

Thanks in advance.
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