02-12-2018, 06:20 PM
(This post was last modified: 02-12-2018, 10:48 PM by philsmd.
Edit Reason: do not post hashes
)
Hello,
I have a pdf file with the following hash:
$pdf$2*3*128*-4*1*16*<hash removed by philsmd>
So i can determine that -m = 10500. But a question 1 is about the key.
Do i understand right that if the key has 128 bit, I need to use the mask for 16 bytes: ?b..?b[16]?
And question 2: i saw examples about cracking pdfs, some of them are using mask ?a..a? and some ?b...?. If we are looking not a password but key (which is in bytes) atacking bytes (?b) seems right and (?a) - not?
I have a pdf file with the following hash:
$pdf$2*3*128*-4*1*16*<hash removed by philsmd>
So i can determine that -m = 10500. But a question 1 is about the key.
Do i understand right that if the key has 128 bit, I need to use the mask for 16 bytes: ?b..?b[16]?
And question 2: i saw examples about cracking pdfs, some of them are using mask ?a..a? and some ?b...?. If we are looking not a password but key (which is in bytes) atacking bytes (?b) seems right and (?a) - not?