4K (UHD - AACS 2.0) cracked!

Discussion in 'Application Software' started by CHEF-KOCH, Nov 21, 2017.

  1. CHEF-KOCH

    CHEF-KOCH MDL Addicted

    Jan 7, 2008
    952
    912
    30
    #1 CHEF-KOCH, Nov 21, 2017
    Last edited: Nov 22, 2017
  2. Joe C

    Joe C MDL Guru

    Jan 12, 2012
    2,672
    1,488
    90
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  3. Threat

    Threat Lord of the Files

    Feb 23, 2014
    1,064
    836
    60
    Old news

    But AnyDVD doesn't do UHD 4k (AACS 2.0)

    I suspect DeHUD developers have some source (hack in player or insider source in industry) that can get the relevant keys to decrypt them. If they are getting from an insider source then I would not call it cracked. Cut that source off and you back to square one.

    After the keys have been obtained (by insider or some hack) then it's just a standard implementation of the decrypt. The real question would be how they got the keys.
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  4. Joe C

    Joe C MDL Guru

    Jan 12, 2012
    2,672
    1,488
    90
    You are correct.
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  5. CHEF-KOCH

    CHEF-KOCH MDL Addicted

    Jan 7, 2008
    952
    912
    30
    #6 CHEF-KOCH, Nov 22, 2017
    Last edited: Nov 22, 2017
    (OP)
    No he is not correct since there is more than one key, there is also the volume ID and the title encryption (similar like sha1) so it's not easy. I added in OP some sources to free open source programs the the specifications and a link which explains how the decryption process really works. However the real reason is to make a small tutorial for AnyDVD HD users to decrypt the Blu-Ray Discs.

    Example:

    Code:
    Processing key:               09F911029D74E35BD84156C5635688C0
    Encrypted C-value:            6D02CAC67B1A7E95C216EFD4C92809CF
    Corresponding uv:             00000001
    
    Decrypted C-value:            074E1FC88FB9B780A225CAA23BC3DB57
    Media key:                    074E1FC88FB9B780A225CAA23BC3DB56
    
    Encrypted verification data:  87B8A2B7C10B9FADF8C4361E238659E5
    Decr verif data should be:    0123456789ABCDEF
    Decrypted verification data:  0123456789ABCDEF0A9BE086140F5A60
    
    AGID:                         00
    
    Host certificate from:        Power DVD 7.1
    Host certificate (Hcert):     0200005CFFFF0000000C00006E3DEB679B9A16AD
                                  FAA8E30878767BA6EB2A9B415385AD1181B4446C
                                  31E9A5DD2AB808B364FF15885BAC490964318C9B
                                  F8029FCF76F688A54FBDA03F6D9332EF04E5A613
                                  12DA85880A4D9CBB79D8602E
    Host Private Key (Hpriv):     4737676058D7029452514F0AB186DC4CCA8C578F
    Host Nonce (Hn):              2923BE84E16CD6AE529049F1F1BBE9EBB3A6DB3C
    
    Drive certificate (Dcert):    ########################################
                                  ########################################
                                  ########################################
                                  ########################################
                                  ########################
    Drive Nonce (Dn):             ########################################
    
    Drive key point (Dv):         ########################################
                                  ########################################
    Drive key signature (Dsig):   ########################################
                                  ########################################
    
    Host key (Hk):                0000000000000000000000000000000000000000
    Host key point (Hv):          8E9B0E3CF41FA7DA3A829F604122EA4ED5261AA4
                                  7570CE0BB9061A66FAF92C4A7D98ACC171CBF19B
    Host key signature (Hsig):    ########################################
                                  ########################################
    
    Bus key (BK):                 ################################
    
    Volume ID:                    40000918200608410020202020200000
    Voluem ID MAC:                ################################
    
    Volume Unique Key:            802F78B1B20D1183638D84E1A96D6EDD
    Title Key File MAC:           399FE6A364D623541418E3805D1ED790
    
    Encrypted Title Key 1:        30F8DC87B137A1607C7F2A731FF7B6BC
    Encrypted Title Key 2:        B5183BDC3335A1EBC8E517B6611A1CBA
    Encrypted Title Key 3:        A625BDC656E9D5EDE040A07B9FB8D7B1
    Encrypted Title Key 4:        F5ACB8900A639E85B4133933E74A92E7
    Encrypted Title Key 5:        635B440099BFAB97911ABBBC4B1F25A7
    Encrypted Title Key 6:        9EB5C32E0AFB0B3A4A906CB360CE57A0
    Encrypted Title Key 7:        21258E976BECFF0090E371058DDDE695
    Encrypted Title Key 8:        E49D4100A52DB01F7F605768DB4000F2
    
    Decrypted Title Key 1:        7D743D3C92652CC16B66D9CB87F6D132
    Decrypted Title Key 2:        70B71C6E767E213AEB7456985BAAD8A4
    Decrypted Title Key 3:        4BC362995030035312A5B6030D76C817
    Decrypted Title Key 4:        A019B5101E904A700A44F056B7EB3579
    Decrypted Title Key 5:        896AB02D3D77554EABCE3CCE931DA39D
    Decrypted Title Key 6:        BEC07637E9C4EFA1F70FED6891DB277B
    Decrypted Title Key 7:        1DC0D276F2C5B9FCFDE1414C5002BAAB
    Decrypted Title Key 8:        BC7EB577D1936818AEB9241F024DE681
     
  6. Threat

    Threat Lord of the Files

    Feb 23, 2014
    1,064
    836
    60
    I never said there was just one key .... I said keys

    And that applied to blue-ray, not UHD with AACS 2.0. This will be multiple keys also but the algo's will likely be more secure having learned from the mistakes they made.
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  7. CHEF-KOCH

    CHEF-KOCH MDL Addicted

    Jan 7, 2008
    952
    912
    30
    That's what you said and what is wrong.

    The ID is not a key, it's more like (as said) sha1 sum to check against the tsmp.
     
  8. Threat

    Threat Lord of the Files

    Feb 23, 2014
    1,064
    836
    60
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  9. CHEF-KOCH

    CHEF-KOCH MDL Addicted

    Jan 7, 2008
    952
    912
    30
    It was definitly cracked otherwise there would be no BD+ (coming soon), the keys you always talk about doesn't matter there more than only the keys which are necessary, like I said it's also an ID (no the term here is not key it's really an ID). Maybe read the specifications. Cracking Bluray and UHD-BD is not a one-time crack like DVD css. These formats allow for evolving encryption methods - key revocation, new AACS versions, new security measures etc. Basically they are designed to resist cracking attempts or in the very least make it an ongoing effort.

    State from the Terminal group (known cracker group):

    Basically they dumped it via vbindiffand other tools and created a fake 'input' to optain the data. That's not an exploit.