201209241211 10di0x

explained decrypted filler

3DES(name+title) ECB, 58 GUIDs, seed 810

Metadata

Post ID: 10di0x
Title: 201209241211 → 2012-09-24 12:11 on A858's clock
Posted (UTC): 2012-09-24 03:11:12
Timezone: UTC+9 · title 12:11 against posted 03:11 UTC
Author: [deleted]
Account: A858DE45F56D9BC9 main account
Subreddit: r/A858DE45F56D9BC9 the main subreddit
Category: F3 filler: 3DES(name/title) → GUID list, seed known
Size: 3,728 hex characters · 1,864 bytes
Cipher: 3DES-EDE2 (two-key Triple DES), ECB, PKCS7
Key: MD5(A858DE45F56D9BC9201209241211) = ca7e664dc9c86cb8c006a02e8d9693b1 (name+title)
New here: Missing from the community archive; decrypted here for the first time. (new results)
GUIDs: 58
Filler GUID seed: new Random(810).Next(9) ✓ verified
Run: Run 34 (seed 83,105,000) (seed)
Draw: 147 · predicted N = 58 ✓
Machine boot: 2012-09-22 10:23–10:24 (seed = uptime at app start)
Sources: arctic-shift · body from arctic-shift
Links: Reddit · Arctic Shift · JSON
Score · comments: 1 · 0
Tags: automated (decryptable)2012Encrypted masked GUID listarctic-onlykey: name+titlerun: seed

From the post to its content

As posted (encrypted)

E59BF874A4CFDF69 41C19605A9DBA9F7 D270A01BCF984601 F92A9CA7CEED294C B37C32FADA612236 8F9523CC69F28BF2 681F485A5B09CF74 7F49737D244009C8 314C2E3697650C2D 9B28E33CD405E6ED D35AE20C12363FC9 FAECAA27FFFD7286 626888CA22434347 76335688D478726A BBD315FD84831581 27DC1F5AEA77A067 ED368DF5A95F8253 BADD7B392BE91679 5ED361864847BEA1 71487F7DD6EC8F7D 4F96FE033CAA6584 48DDF084C64270AB 2C4AE74CD6D814CF 36AC282A8538EEA1 8800F0BD075AE756 5F1EA9D4A6FD2990 733350CD96720E51 6B7F89C6C569903B 9856FC6E5DAE1669 F9BED232E772C7D3 02AF6D136EA5FCAE 60FB658CD6F288AC 6DDB53383A249C53 43C697B72FB98B7C D8BF5582FC0DCD87 43E3BF6914BC8FDB FE22ED3900D09825 58B3502F704B69D0 A2E0E3073F62A91F 0DA04DE99120B53F E3B8ADE375AFA0E4 78F22EC4C88A5C75 7E595E0CE7E7DCDC FB9B5335763A78D0 EE9865C7670CDDE7 97BAEEA3B7DE6C63 7D6263DD3A0449C4 AA81C34991C177DA B3EAC5E50A358E6E 9C093651DA9D4BDE 6480DB1267BCB99A 149DA66484610B73 89470780E7B97CB5 12F94EC3F9522CA3 520AF4CAA314F458 5858389703ED4DAA 45A6B8A2B47FAE5D 1DE31EA53E959923 4A6150AD0FDCC040 EAFB4B09C0A45A3A CD354FCAAB769F3B 0D851E38E2FC0CCB 5CF9AFCF626ED909 6332694718939030 E20562E3EB1A6B2D 43EC2B48DB41B587 1323775A2283529B E9231A771AC69246 2E5CCE424FB56473 C6D8CD2A9A7126AF 885746873816D3F9 4D68CEF262DE29C7 41CB233469BADAF1 A6493B9AE2F96E34 3F240BB745BDA26F EA3F49A63E3DBB67 B0C27F69150ADAD7 688B7D3881653008 E5BC10560FB00E14 5C7547A65361CC97 1DB436E2D077DD67 499968029A0C2B63 A9B44E56E585A6C4 CCD6FB79DD040C24 333513236DAADC1B 06BD73ECF3B1B798 9918EE6375C7BF4E 706CABD37B4AD1BA 39A4FFDA2B536E42 773F0798A63DC696 E09081A0F26AEAF7 0B4CA2F9A70185D7 81A009559127A038 24DA2077F8579A4C B9100F02D0DB78AE 82B367F6D37254FE 258154BF28D841B6 AD3B1194A0DB5EB1 065E635555026D55 6A8BD384B6070CD0 E61176A967613E5A C2DF7C016AD09AC6 D8E6FFEB39DA032A A1302D33B5724183 1AFCFF858B470917 1E64C170F3B7F57D 8928A7702CD26FE4 7B56C1DE88721C72 5D84B6D8786AF65F B2711E3D2FC8AFC5 2EECEEB1B6F1A8B1 AC5783883C32EDFA 958DDF285B2C1A73 2E2162994744C211 BA9BE2FF83F74D9F 09F4EE474A8C5F79 81570AE669554A95 7481827C7FC4E9F6 A8696DE2F0E9E60D 287E6199886296E1 FB1947CE4152BF60 8FF213BC7CD6FEEC A8A27D8E931732B1 11E526CA8F58EF36 484B4B1903D3F569 6F35702D01FDBC18 58D4F0936E771816 1DC06689743ED6EF 015065308A93CA3A 7BEA1775E4725565 E83FD376868909D9 787AC31C46E95A67 947E164E8E3F1F75 A265162E09BEC53C 9CBA0A2EA77A9869 785F79DA8D8989E6 1C17BA6D02F7D522 0337AC204CF7C615 E861B1E7001FE9C0 09ED33989DD7E792 E8EE27682710D44F 27BC33EEE6E4FE5F A9B0B784B109B9D3 38BBEFC74121220A 9FCB2288C3CC0DF5 B0CD0A0ADA594982 833BD4B53CC98EE7 79C9B90248146C15 EDAA69F1E9A278D5 30EFA72426B65B01 671ACDE2F6A35A3A 07632478D36AC933 B3B888957FD6CEE6 F3ADC9D7A47A1A3C AD7BAE1A2B9D2A20 D4E3D53C524666A8 90F4526F9AFADF70 307CE7CAB012D468 4F9680BBD47A76B7 28228AC524BDE9BE 9097F61A94272719 4ED7F5C85DCF045D 7494542C670CE992 751CFF23AC9DD600 0CA8904BA15D3C1B F3EDE2A32B758281 888D8C3D007F5994 FC455FE29CBCF376 03587FA99E1EA0F9 1C3C9206690959BA 53EDACF4B2729612 B0B41B6A866653F6 81E500AC655E05F9 C388F16740844411 44A8B4B68BB0CA11 9133BF2AE75644C5 F28A08CA3EC79204 4CD0292767CFBC9D 6344202C75B8072F 0714279FADE00896 57CB937317827F74 FC58C34146D8FE79 2C511AE908148A7F 10AB032120FB74A9 8D9BE0AD1A2C77EF 9886E31D69729D67 84DC7A53B71B0ECF A10BE16B5C603688 C60ACFEA5DE284C9 272BC9F1867509A1 E0F459A03A111788 BDCF4378BF1E2656 5422422C4C9295AE 5DE4C47A35A5E611 E8B2C3106396CE94 3F5A9308407CEC90 A8CFE34F745921A0 BB9CA2CC97E8CCE9 D9C0931DAE64753C 51E21B98015EF438 EC1B6615E400E719 E7E3D9BC40315CD8 F686553EF01921AD CCEDE188ECC04A74 29BCC04F5067D548 B8F58EEF1C3250BD 39CE208354FA9DF0 CEE22AB644F1BC48 12B1324A8526A810 3F179F2A95FBE133 A13286ACD8FC34A2 F509D6006C78160A F00853DEEF2E77A0 389E906AE7609A5A EB87EA3091834540 7DA9D61CDDD4752E 82B4ADD3DF012703 2784476F9232ED57 D49510D2645D94E6 9E8582DE410A9480 EA958D83F814B07B 38868A6383EDD8EC 4EE71ABA24E4F068 6FE64BE5275715C2 144983A646F8BF38 9E1C348569D65092 EC4CB3726F79F6E3 3E71E77063F727F6 A50F3C532B9BB33A CBAB5DCD3707767E A0B1B070F067EBFC DFD73F853C497246 C977476A5C8439E7

Read the ciphertext. Strip whitespace: 3,728 hex characters = 1,864 bytes = 233 8-byte 3DES blocks.
Derive the key. Password = A858DE45F56D9BC9201209241211 (name+title). Key = MD5(password) = ca7e664dc9c86cb8c006a02e8d9693b1, used as a two-key 3DES key.
Decrypt. 3DES-EDE2 in ECB mode, then strip the PKCS7 padding. The plaintext is 58 GUIDs as hex (shown below).

Decrypted: GUID list

  1 06828e81-073c-84ce-90a1-aa6790d14c8b
  2 b7b1caad-af5d-4658-b537-9017eae4dce2
  3 d024c44b-a1b0-89df-b23f-14958716e07a
  4 252755ac-9415-4714-bf0f-35efd6a033ed
  5 639bcd0e-6986-853c-8b9f-b39a031db959
  6 6c635b2a-1bdf-3ee2-8ffc-76472211ea53
  7 72957eb9-560f-757a-8543-f2822405cdad
  8 ef846a5a-4800-7726-89a0-5e3c888f20c6
  9 3fcd8ea3-0e27-1644-a322-c7db7ac4d4b8
 10 4b6b78f9-f34c-8172-89f6-33e7e725ce16
 11 476086f6-b630-0c3a-81f1-47ab6e853a3d
 12 ed1d8926-8670-7344-b7f7-8dd8f8c9fffe
 13 4be7db69-e13c-4014-838c-770dca52ce07
 14 ed6becb7-9490-7b0c-8939-181a3afcda16
 15 9e78932c-3359-8087-a9da-ad0d8e0a1032
 16 977b0432-9cd0-87fc-ade1-ccad47934cd8
 17 8973838a-9422-30da-ba93-dbec7bc6c062
 18 a2dc0682-caed-1e4f-923a-d5cb7410441a
 19 47eeb642-d739-513b-a445-af29c3458549
 20 819bfc6d-6df9-809f-84bf-996dda7d4065
 21 03b1df5c-139a-3b72-a950-8cbc6186f39c
 22 6cabc109-ae28-5065-b701-c4db168a1680
 23 84a161e3-09f8-76ae-81eb-a60ee66e9ed5
 24 a892648d-1722-00b8-a339-0cd5fd9684c0
 25 848329eb-8f94-00c7-a5b1-f29b9070d6fe
 26 4b63a966-58e5-44b9-9fc4-4dbdb1025482
 27 29aa81c7-adcb-3251-b105-e8d34d2c4b4a
 28 96e9bab2-9037-5ba8-81f1-3de3ebc0f9ad
 29 8c85432e-1141-2a02-a2fd-cd62b5bcf18c
 30 a3bf042c-56dd-3312-93d2-e8f0a6db3d3c
 31 0f796b49-8313-169e-acdd-6ca27a9a621f
 32 84d77717-1ad2-7d44-a590-ef88cb7c1a1c
 33 9b510467-d1cf-0442-9916-b0751036d851
 34 2b95b7f1-a47d-2264-baae-e4490d659a6f
 35 16c84d31-c603-4275-b17a-5df124b4d483
 36 82974b68-68c3-751b-ae58-b14a849ac824
 37 29284712-8aa2-85b3-b4c7-098aa8c4994d
 38 246c5077-1556-3b04-a324-65847991d325
 39 03c09197-4c50-00da-9128-306d1a02093a
 40 99b28199-abbf-7c6b-85ab-d08981ff6c1d
 41 4b4eac4d-ca74-3e9f-b32f-6218914df735
 42 0ad7e49b-6e73-6a19-a642-323730a8c710
 43 5f30ffb7-68ef-5420-bc9f-b85c609d735d
 44 e0a19b95-a591-89fa-8049-2a8623e78463
 45 487df1f5-78b2-8040-b8b0-174d08fd8975
 46 c687dfb3-1afb-10f5-b34f-fd29096a0c58
 47 001a9ccb-410a-87ca-a527-991c7ba0653b
 48 a50a6e7e-a36a-1656-92ce-b872ad17149c
 49 0d9a8422-511c-2962-9f2e-716e07d994c3
 50 16d44170-1e88-2f3b-99d9-69ec95dbaca6
 51 1e0cbbcf-3b64-46f2-916a-91d5075a8877
 52 f5338d86-cfbf-7018-8ad0-970715c21687
 53 67b88a3f-c20c-2548-a3dd-4dff25bb95cd
 54 224681f5-856a-49d2-8038-21b8a06bbff3
 55 7d32b6cb-51d2-34bc-996a-9506e4f90d9f
 56 98624a08-7153-27f4-9d85-e4ac3c474b82
 57 f982d49f-4f6c-5fe7-9dfc-cdbe7cba7125
 58 b0500d1c-66b9-8476-86c5-57d8cbcc372e

Explanation

Explain the mask digits. The version nibble (13th hex digit) of each GUID, read in order, gives 8484837718074788315835700435231702478307365881812247243258. Exactly this sequence comes out of new Random(810).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.
Explain the count. This post is draw 147 of Run 34 (seed 83,105,000): new Random(83105000), Next(8,64) per post. The RNG predicts N = 58; the post has N = 58 ✓. The seed is the machine's uptime in ms when the app started (boot 2012-09-22 10:23–10:24).
Conclusion. Filler. The content is fully explained by the two RNGs.

Metadata

From the post to its content

As posted (encrypted)

Decrypted: GUID list

Explanation

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