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Extracting cert from ARIS TM822AG
eltremendo Offline
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#1
Extracting cert from ARIS TM822AG
Hello, 
   i have an ARIS TM822AG Virgen.
I have done a full back up. and i would like to get the certs from the .bin dump.

So far in linux i did a "binwalk -e fullflash.bin" and got a folder called "squashfs-root" with some other stufs.
i found two certs named "mfg_cert.cery el [b]root_pub_key.bin" in [/b]\squashfs-root\etc\docsis\security. 
However i did not find the private key and i did not find the fw certs . My question is , do i have to connect the modem then perform the flash back up or my binwalk is not properly installed ?
21-09-2018, 10:13 PM
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ricktendo Offline
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#2
RE: Extracting cert from ARIS TM822AG
squashfs-root is the Operating System, you want the NVRAM jffs2-root\fs_1\1\security\download
(This post was last modified: 21-09-2018, 10:52 PM by ricktendo.)
21-09-2018, 10:51 PM
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eltremendo Offline
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#3
RE: Extracting cert from ARIS TM822AG
(21-09-2018, 10:51 PM)ricktendo Wrote: squashfs-root is the Operating System, you want the NVRAM jffs2-root\fs_1\1\security\download

Thank you for the quick reply. however on the extractions i did not find the "jffs2-root" folder  \fs_1\1\security\download
.
does bin walk give you that "jffs2-root" or i need the jefferson installed, because i see couple of dimmies files .jffs

http://prntscr.com/kx8h5o

and here the nvram has 0 files in it
http://prntscr.com/kx8hjj
21-09-2018, 11:19 PM
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eltremendo Offline
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#4
RE: Extracting cert from ARIS TM822AG
(21-09-2018, 10:51 PM)ricktendo Wrote: squashfs-root is the Operating System, you want the NVRAM jffs2-root\fs_1\1\security\download

oh i got it thanks , the jefferson was not installed.
21-09-2018, 11:44 PM
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