A858DE45F56D9BC9 archive

201212290500 15mbnb

explained decrypted filler

seed 606

Metadata

Post ID
15mbnb
Title
201212290500 → 2012-12-29 05:00 on A858's clock
Posted (UTC)
2012-12-29 10:00:13
Timezone
UTC−5 · title 05:00 against posted 10:00 UTC
Author
[deleted]
Account
A858DE45F56D9BC9 main account
Subreddit
r/A858DE45F56D9BC9 the main subreddit
Category
F3 filler: 3DES(name/title) → GUID list, seed known
Size
4,112 hex characters · 2,056 bytes
Cipher
3DES-EDE2 (two-key Triple DES), ECB, PKCS7
Key
MD5(A858DE45F56D9BC9201212290500) = bb0bdc9e9e83f49c64a2d66b32bc1274 (name+title)
GUIDs
64
Filler GUID seed
new Random(606).Next(9) ✓ verified
Run
Fixed N=64 (Dec 2012 - Jan 2013) (fixed)
Draw
Sources
community-archive, arctic-shift · body from community-archive
Links
Reddit · Arctic Shift · JSON
Score · comments
2 · 0
Tags
automated (decryptable)2012Encrypted masked GUID listkey: name+titlerun: fixed

From the post to its content

As posted (encrypted)

108A917E41207AD3 9D0C4B1B686427EA 16C3609C8E668394 2D96C14A0D1D5E00 79108B65D70106D3 B27BD34F237506A1 4442FEB674E53525 E7863EA9EE5DB54A 7E0D67E2A3258A03 AD98EF93B5B36A81 DCD3A8AF105F49FB 5E3EE6B146894540 577895EE53825729 D7BA8D7DC994B51E DA7897C7C879D37C C865ABE89887D323 A00A383DB922CAC7 64B9748F3025D426 48D3EC854C9DDF87 94859D051122732B C715E592FE6BFE61 91F433B72853D2E3 5BAE1127BD841DE5 730B2CD57BE15E57 3C1B7F5D3F20BCC2 D29C6F503CE29202 72167257402C2CCC 3EC5037DD2DA297F ECE260409539C7E2 01A7B06D2BE1EED5 01A2D962EDCCBB6B 2E0E98A83EEC0BE1 C4E8EAF9C243E1B6 BC6DC6A4E5B0670B 0A3CF3723B7CCBAD 1DFFCABA4D90B13D 41507D8CD2F0568B A4174C37386DBE20 0A969741542018D9 8638BFE1AA5CE435 5EB9260CA935CA44 1A6EA9A94834CD7A 8409D4775C1DB726 D9E32D0D83FFF22A 948292C3D53AD7C9 316F17E5C0E8ECE7 F7C63CF6A10A62FD 5F1A1C7907789CE9 6BFFB518CA89055D 9BE09FE621714EC3 22856F5001430A7C 5E030D3DD9143784 BB8B24256960CFA6 8DCF3D0FDBFDF9DA 0EC9F15D35DA79EF 0A3520E6BAA2AB4F 15B2A87CE782F4F1 23DFD3ACB32F28FC B9801850C894CF49 8E2F8D268B806FA3 0B0A672D86504EB1 CEF3B3494CC59B2B 73B4360A0A421C86 CC57D26C4FAD3188 3735D76B3B77ADE4 5E81FA5B7C54AA9A 0B78C3567497713C D3C0E2407CE0558C 7D9D3294F3489181 FB0FFD078DDF2DF7 88C45C05A7488E4D B5AC9DE0ABE56C56 C79E8601E8C58983 066957514654867E D42E347A5767276C 6676D2636ADC5AC7 0166DBBC06E19F8D 7030D5AD93A4FF79 B43346B79114FE99 33F73084051F9D37 910FCED7B86440A0 8353487682F450D6 C1B154F53E3138D3 9633CF6383194451 F1F19F9E281B56AD E884009A243590B1 610F685D01462E68 99A69DE091448A63 9FB15C2F56CE8EB4 D40635FF6D7B394D B3764FC46B55AAF1 98FC0D0839FE0FEA 3F687FFF42CDE5F4 350675D0EAF6F0E5 CB89A9FE8EC82D5B 0A751EB4C517940B AA7B05A41D3A3078 B6D86C65099CC712 9E76296A778ED64B E9213D69A2F1A529 2AFC42160058AF74 8CA9CABA45D6D2B6 C814E381B8ABFDC0 DDA7A239DAD07C02 22F80D548B032929 36951E7A7A522CD5 72092C9EF830BC73 9E2AD7F5DA701F07 B0D62F28B4946265 44BC76AC68C9FA4C 334E767E80BDB9E1 5786AC294A49198B 5AEF020B2641BD00 9FD177FCEF5C2D5B 1087A8B1B272CE48 C43963E7FD549261 77F56D816B4C69EA 82C7E8F1AFA114F8 52E49120170DD201 44C3269C56109051 F796B97CAC67989E 0718B2A2BD8F1A0E 691AB501C065DEDE C71F0A2006152712 0392A75C91E0B9AC 5E5DB798E6CED5E9 1215CDDEBFCCF79E 7744F327156B1009 88DD2FCB2CB802EF E4FC090AAD269916 7BEB15DDE356A084 7ECDF540FC25B4B0 5413E6B495CEABBA D749004FA5C2B5FE 1FD563619E43DDF6 97AD002060C56E48 19C28348570FD42D 83B4A71D9AF9DEF0 6D489DD0B89E2343 ED86C524F0732E11 74FE5F3B5FA10E33 D556841EEFEB9E5A D8E92F75C5370412 B33CC36E2A2F2396 963C7176B21B8A9C A57C4AAFF56E6B69 E50A29CFE4B4E5D9 AA4E7E635C9CAF92 441AF47FDB4F45D1 4DBAC264D5C47B96 064DEF2624B6AA93 CB444D65370A9FB3 88D57936072E0D11 6AD91D4EA4D9F72A ECEE71A109EE1198 6BECCF2CC29F2CF8 C70EE00FAE0CE269 48C4584A4D105E5A 62AE7F62982B5595 1A43FB2DD2711A40 C3BFFB270A344459 DED67175353A64E1 D3404FB1333ED240 9E08227F6730B71F 4844B90AC86B9A0D E8908732D91C84AE 9C54E792FB73A5D7 DE8593C0AC9314BD 4ED39C7E32CC1621 1BE041CD38631CCB 1C736199C3C5830F 697BD80A38A14CB5 5AFF38611018841F 6734C7ADE30C4D8F FE10C9C26BF82F97 DE0ADCF2A6D1974F 8A54231DFCE71CC4 FD8F9B1C69FE8209 C9A6165E8A44B381 152B7E73E4CB26D1 C3EF4C92853A0194 725EE9D249198878 6DD8894148DB4C54 62964CDABCA7C4A1 18E998A8E229A004 45335E7F0394F707 18A4E5D1AECB4942 B958F34D65A0956F 66B93C85291DB82F A64D8D6928FC105D FBC195833C071636 FE28C56F1FCB6D07 FF91D1278C31C973 5CDDA0BE0EBC0945 ACF142ABE359E940 CA2A68A8941A6DEC EE8E4AA6B47E5F30 FC6D668E7A1F307F E8FC770E5B4873E0 50B6C9F7E914361B C0102EFC4C5D5B7B 4547B8DCD793FE58 A5E5694733ACA99B AF9124BF1F37BE47 E5C0103ED49E2CC3 2DA942D4E52223F6 CB18AA802EFB7307 A8CFAF8D8350DF02 B92857C3253C59F0 01F7412258F9C137 5711F89D758B6C7F 6D033A29072E11F1 6C424ABF81D02887 1745F3C8FCE48CA4 F35E421E79328567 2663E0D84B321B3C CCD7BD548657883A B612EBFB4DFFA700 A7BA07F48F894020 315972B8CEC5278E 5B95183E137252A8 0C79B80D46AE37CF F115CFA9E2D92BEB B8EC11F40E958EB1 F7BE45FBD8FDB6B8 DF6D6BD9614BDAC1 6F0FD05ACF73A026 F9011A202F155577 77D1B39F153157C8 E7B5DEE5B6EA7AA5 4646B3F9E64578C0 8F934F38367820A0 06AAF66176D6AFAD 2B1D785074134302 12A4E5006887A702 DACDF7628648706B 2EDFD0C229291920 42D263F9F6D1278F C02E5D9D87620153 4A65400C90E5E107 078B62A1393A730E 5BD13882AB3C6E51 A22492450CE025DF 2A97CB6AA389D00D DE3BCCF8E030E6BE F9AFFFD811F1A0CD 1D33C3B132A4FE0C 0DB07BA9EE3C6164 B06944DECDB1756A BF9804A2C5073C83 B3B8E3F49560B3D9 7E808048FBB8B3C3 18FD81F7A72F1999 238D3556D4024108 A24A010ED10D41BE A2FC8E680DC15ACA F627F15568C559C1
  • Read the ciphertext. Strip whitespace: 4,112 hex characters = 2,056 bytes = 257 8-byte 3DES blocks.
  • Derive the key. Password = A858DE45F56D9BC9201212290500 (name+title). Key = MD5(password) = bb0bdc9e9e83f49c64a2d66b32bc1274, used as a two-key 3DES key.
  • Decrypt. 3DES-EDE2 in ECB mode, then strip the PKCS7 padding. The plaintext is 64 GUIDs as hex (shown below).

Decrypted: GUID list

  1 7a882b17-a77c-2b52-a551-c1163f65dfa8
  2 b32e16c7-d063-5c1f-aa30-af7cd322d5ed
  3 7e1aeacc-971c-382d-8e01-dd33037e268f
  4 2a2cea3a-5f30-85b5-94b8-96c0ae2835bd
  5 12d5fed9-db5e-7904-9945-ca5afc1d9098
  6 9278f179-c483-1b4d-8a34-8708870896e4
  7 771ae23e-4e5e-3536-83df-bed5c4c67ad2
  8 a535d88a-0b3a-4b31-aa51-a6112203cba7
  9 4a09ab01-8906-88f2-81ba-5161a9b4f801
 10 4122c3d5-a772-671a-8589-12fba85fbb45
 11 499b5173-b10b-6ec6-b078-42fae0c66aa8
 12 cc0e0726-a32d-5d27-b2a1-0fcc02c8cdd7
 13 d7f15fc1-cd71-2a7d-b4cd-bb84934fc096
 14 0aa86004-6512-6e10-87a6-52d1c8429335
 15 67c5ae2c-3beb-1366-a826-f4c38656f776
 16 41b1d90f-f367-40a5-8bcc-37131c24a658
 17 a921e354-5647-5871-ab04-17c177b22487
 18 2f338223-017d-6ff7-85a1-252eed8769f1
 19 5b7a1d91-f851-0c44-81a5-273450f2a34a
 20 340852b9-a1a3-8ad8-b59d-8b17f5da4184
 21 dbc9a4ab-ac3d-395a-9fb7-5fda220db248
 22 26ef5501-738d-45fd-bc80-719b5c8110c4
 23 ab11c7c7-26ba-3b66-9064-3d2b41261a73
 24 5e10efb2-20e1-67e0-9c02-d557d0936043
 25 8090964e-8379-04db-b594-3ca7018e4458
 26 bba1a3a1-abf6-2471-923f-20c13d46acda
 27 4507c193-7a8c-86ff-8672-1275149e6a4b
 28 8536230a-1912-1e6f-800b-f55514ef4b39
 29 6a5a0c38-9cff-83ee-89ad-46b92c45b7be
 30 3090f162-2c0f-1a57-935a-27bbb36658cc
 31 9123c8e4-276b-8013-99b4-d0ccaa0f4a4d
 32 d4e0a70f-35f6-0461-ab57-5e64f949b9f0
 33 03359da2-bdb6-879b-a2ec-a5992eda444a
 34 897bb482-23f4-136a-bc51-a1de71f4b06d
 35 64d8c8c9-30a3-27f5-b5df-491cb56240fa
 36 ad21415f-86a8-0f7b-aae1-e159c880dc8c
 37 6532b1fe-2b7d-0aeb-9112-1fc248710aa8
 38 13cce921-45ec-3da0-9fcd-96fbb8029bb7
 39 5860a700-83ff-1ed9-89b2-537375745efd
 40 a360cae7-f5fa-0931-b5d5-4df6b60df4a3
 41 a662dfec-bb5e-6968-b478-6032e7231c5d
 42 8bd98106-c168-0043-ac3f-1e34e90fada3
 43 fbd55616-5bfa-7568-86aa-7d00f38ee770
 44 62376b41-336a-7945-b732-ac090b0c5a2d
 45 ea8e1246-e6f0-35c8-97d6-072d791b6e74
 46 8efa34a4-730e-4c8b-889e-274ace8f1a02
 47 bac66631-d07f-4ccf-b62d-8e8fce057bf8
 48 10d44984-098b-8f08-a6b5-18642799b8be
 49 5eed39d1-bc0f-3b7c-8445-bee7151add56
 50 d5891309-ba62-2bfe-bfbc-ca913bbe6e04
 51 67c0499f-8dc1-7bdd-aca7-7378878a36ef
 52 4a3fb132-5877-7d69-8ad0-5d8828754370
 53 f70ab622-2d38-0cdf-a5d9-8e067ed49e82
 54 2c763bc9-3487-86a1-9484-fb896f915d5e
 55 7bc643e2-f149-4735-9bf4-a886b42e9e49
 56 34aea723-299e-73df-ba1d-404d2421083e
 57 90343112-a61d-1db7-b866-8ac349fd1a0b
 58 e0398b09-b434-500d-a69f-caf7a9431bf1
 59 5debf615-079d-7169-b124-4e8f9be326fa
 60 958b6100-381b-4ba5-b538-e1819f12b84f
 61 7c16fe85-e83d-18e0-a2aa-3f752a3b8e05
 62 89697d8f-25a6-22f6-a36e-bb10361d54dc
 63 d3d904e3-0184-4faf-a0cf-d322256a34e8
 64 83bf520b-c8b5-7788-a491-cc8c307167a8

Explanation

  1. Explain the mask digits. The version nibble (13th hex digit) of each GUID, read in order, gives 2538713486652614560834360281818081200310607734483277084715741247. Exactly this sequence comes out of new Random(606).Next(9): the per-post millisecond seed of the mask generator. The other 30 hex digits of each GUID are Guid.NewGuid() output and carry no message.
  2. Explain the count. Part of Fixed N=64 (Dec 2012 - Jan 2013): an app start that posted N = 64 every time.
  3. Conclusion. Filler. The content is fully explained by the two RNGs.

Related

Findings: Mask digit · Count RNG & runs