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Thread: Noob: DES-OFB key recovery w/known contents
Post: Noob: DES-OFB key recovery w/known contents
| Hi all.
I am new to HashCat and have been trying to figure out how to get Hashcat to recovery the encryption key when I know the original contents and encrypted contents..
Also too the files a ... |
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Davidi74 |
hashcat
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2 |
802 |
04-20-2020, 12:21 AM |
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Thread: Noob: DES-OFB key recovery w/known contents
Post: RE: Noob: DES-OFB key recovery w/known contents
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undeath Wrote: (04-20-2020, 12:50 AM)
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That's not supported.
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Thanks for your reply.
I guess thats why I couldn't figure out how to do it :) |
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Davidi74 |
hashcat
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2 |
802 |
04-20-2020, 09:35 PM |
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Thread: hashcat -b is not seeing my grahpic card
Post: RE: hashcat -b is not seeing my grahpic card
| sudo apt install nvidia-driver-440
This installs version 440, You may choose another
This should install all deps.
Tested with Ubuntu 18.04 running Hashcat like a dream :) |
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Davidi74 |
hashcat
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4 |
889 |
06-16-2020, 11:27 AM |
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Thread: DES-ECB
Post: DES-ECB
| Hi,
I'm trying to test decrypting a DES-ECB hash.
I use a tool to encrypt 0000000000000000 with the key of 000000000000cccc giving the cypher text of 5c3278aafe9127de.
When I run hashcat wit... |
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Davidi74 |
hashcat
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7 |
1,521 |
04-21-2020, 11:35 PM |
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Thread: DES-ECB
Post: RE: DES-ECB
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undeath Wrote: (04-22-2020, 12:10 AM)
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That's because DES operates on 7 bits only. Both keys are valid.
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Thanks heaps for your reply. Thats what I thought, but when I try it with the smaller ke... |
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Davidi74 |
hashcat
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7 |
1,521 |
04-22-2020, 01:25 AM |
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Thread: DES-ECB
Post: RE: DES-ECB
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undeath Wrote: (04-22-2020, 01:29 AM)
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bits != bytes
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Sorry, I don't follow :(
I thought 7 bytes=56 bits for the key |
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Davidi74 |
hashcat
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7 |
1,521 |
04-22-2020, 02:00 AM |
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Thread: DES-ECB
Post: RE: DES-ECB
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hops Wrote: (04-22-2020, 12:03 PM)
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In DES the least significant bit of each key byte is used as parity bit and does not affect the en-/decryption process.
0xcc in binary is 11001100 while 0xcd is... |
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Davidi74 |
hashcat
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7 |
1,521 |
04-22-2020, 09:49 PM |
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Thread: DES with partial plain text
Post: DES with partial plain text
| Hi.
I'm hoping someone can tell me how to "white out" a couple of values that are unknown in the plain text for a brute force attack.
I have been searching all over the forums and have been unab... |
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Davidi74 |
hashcat
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11 |
1,624 |
06-14-2020, 09:32 PM |
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Thread: DES with partial plain text
Post: RE: DES with partial plain text
| Hi and thanks for the replies.
Sorry Royce, I didn't explain myself very well, Philsmd is on the right track on what I'm trying to achieve.
I know the first part of the key and my rig here can ... |
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Davidi74 |
hashcat
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11 |
1,624 |
06-15-2020, 02:45 AM |
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Thread: DES with partial plain text
Post: RE: DES with partial plain text
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philsmd Wrote: (06-15-2020, 09:02 AM)
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now you are confusing ciphertext and plaintext
the format of -m 14000 hashes is
8_bytes_ciphertext_in_hex:8_bytes_plaintext_in_hex
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My bad
Should b... |
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Davidi74 |
hashcat
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11 |
1,624 |
06-15-2020, 09:07 AM |
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Thread: DES with partial plain text
Post: RE: DES with partial plain text
| Thanks for your time to even go as far to provide a script to iterate all of the combinations.
What your describing seems exactly what I was looking for. My only question is wouldn't this be a big ... |
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Davidi74 |
hashcat
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11 |
1,624 |
06-15-2020, 09:30 AM |
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Thread: DES with partial plain text
Post: RE: DES with partial plain text
| Thanks HEAPS for that, You know your stuff :)
I will give it a go and let you know as it might be useful for others that need a partial match with DES.
I am reasonably familiar with Git and the ... |
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Davidi74 |
hashcat
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11 |
1,624 |
06-16-2020, 05:04 AM |
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Thread: DES with partial plain text
Post: RE: DES with partial plain text
| Allow me to illustrate
Say I feed this into hashcat for cracking
xx??xxxx:xxxxxxxx
And I know the first part of the key xx??????
The above is hexadecimal of course.
The question marks a... |
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Davidi74 |
hashcat
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11 |
1,624 |
06-15-2020, 08:58 AM |
