201209241303 10dl2y

explained decrypted filler

3DES(name+title) ECB, 53 GUIDs, seed 953

Metadata

Post ID: 10dl2y
Title: 201209241303 → 2012-09-24 13:03 on A858's clock
Posted (UTC): 2012-09-24 04:03:50
Timezone: UTC+9 · title 13:03 against posted 04:03 UTC
Author: [deleted]
Account: A858DE45F56D9BC9 main account
Subreddit: r/A858DE45F56D9BC9 the main subreddit
Category: F3 filler: 3DES(name/title) → GUID list, seed known
Size: 3,408 hex characters · 1,704 bytes
Cipher: 3DES-EDE2 (two-key Triple DES), ECB, PKCS7
Key: MD5(A858DE45F56D9BC9201209241303) = 32c42067491d271c314ff37a7b318118 (name+title)
New here: Missing from the community archive; decrypted here for the first time. (new results)
GUIDs: 53
Filler GUID seed: new Random(953).Next(9) ✓ verified
Run: Run 34 (seed 83,105,000) (seed)
Draw: 199 · predicted N = 53 ✓
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)

F52B2AEDD4D67F8B C482AE29A1CBC113 1DCDB79D4FE33764 585092B919A183CE 2414F830474C5C9D 16E3953CE8F2C821 A0CF846D090A6B3B 801C098DA2AED81F 1442043176AE931A 23B3F2BEB7BB0105 FC2183071ADDDB2B DDA15405878056B4 C90DD2FB49DBE598 D8ACF142F90F92C3 3122CAA464E044CA 9AA76E3C508EBAF5 CB04CD5CECBBEEF7 0FA33540F0A5601E 74E3BCF43326E313 5FB298738C38D65B E95471C81D0C70FC BD08248F536BDE3D 7EA11807C8934C19 45BDB68AEE7698A8 FA983B08EDA57AF3 5132DA9CF693D786 CFDC457672F48A71 C36AC752BB0FC0D5 0FD80C66A6A6B35E C26E1635360676BE C0334948362EADCB 3D34305B1F92BE37 E2D7CF6E6ABD68B9 0A3177A7CC1567D3 F9ED33B46762EDA6 FF880F5A9C65A730 971C1316B396E46B 9E62B6B9341A56BF 6D25A4D2F87E4F00 556873FED80EC95F 2AB5D81FCBA81903 60D721E54A1E6731 E6F4A94DC4DCF7DC 59492D0FD2061C99 30F30140E9B22355 54C0D45C4C1455B2 FB7C7410E0EC5437 7E9869FDF0A2935B 36D3F0EF474C09E8 F0138F7443FB126B 4F66E58CBAED9D2D A24D8205E474A78D 9097AEF4E63D8154 6C3FD119AFDF4FB7 BEB1A5745B8C6923 35CA50739851DE60 A347716A3A25B448 FA237D44C2401005 5D600FD012F467D5 052E5552D72FFC0C 543E824E383AC978 565BCFFB376E25D0 BF8F2B81026B5452 9F7FCB754DA75CC8 BB0BC1B07F5DC22D D50DA3AD494FC0A1 2DAEEA98A09157A6 27121F189E89E270 DC5BA1E21F312740 3FC28978C86C4493 6DF01D1CE6B07176 0603E17AC1E16E46 7740E480898D9239 DB65929E8548B258 8F47A172ACD0DC7E 521D0568E0518AEE DFF537AD78C6C40E A886881049D30AE6 BBFAFEA7168589E4 58AA79C1275A02DC E06D9DE2A604ACD3 3644F1DC7208FC79 3751C43256B0706E B345DB810DC14541 FA6185C13F39216B E91A5E2303E11263 C1744F229894F5C6 58118C066D2CE813 0395BA517A614302 D90B003AF763A427 7D457222A12C3F8C 5CAF270BC1E97D3B 1A02C46140F57593 EA9E4039A1223224 534E69242F12AB46 1B35C0EAE39C95D8 52849B0A5937A4B5 19ABD5EB0284D8DE 2500A19A636DCE80 36C61BAFA228D227 FC91161956D423B6 9B33769696D631A5 8AA58EB792DF78AE 9E2775455BFE9AF0 BF5B9D65F7E4BF95 547A2481FA324344 7569B00F4E6BDE23 2EF0265EF802201D ECA70616A12A7CCA 4330AC0E455075AB 4C21528F8FDA9E26 46ECD5C58E074B10 7D3C01981D984F55 458B7DD9EE1CADE1 3D877E52F3B67365 AF5F78618B296A2E CC143D880010DE33 0F0F4348AC65C7A1 E546704FF33FDB1C 698E8FE7051611D1 8516776A4E8A3CC3 5432DB96DEBCEA86 3E5A464943CC1236 10534D1854FB1F69 F8C44BA8F176427A 024769CA32A4D520 762E333535A87005 15F95DE18CE1AB52 2D6EE5D3846A4ABB CF62E7638D970D3B 4DF163D427D11947 FB41220B7B46CFDF 427FBB7DF5A00085 D825C5DBDF05BE52 6527376F6CC732D1 553D314CE22C7DE2 21CF37CE53890A83 1A0538828161A466 5E20BE7A17B580F4 1489BD8E0F9D5858 62A1B1648312D7AE 957CDB876EA429D7 53F9B274C51F7045 17DB8ACA4CC1A507 66F739340D8117F8 1A9C6EF729A92284 CE8AE3AFBA884BD9 6F21E5A5EC6D6F42 1EB9E243AE04CDDA A0C3B4CD7931790A DBCB228C9AD91E53 9A5498E7659D4B86 6CD6DDA88AE4A9E1 F2CF2A1BBA79C750 E70E428A0015AA84 86E42E835C5197B5 625E57011AB3B4DB 7751948824FE74E4 26C9F9E90E25AACD 87ACDA3B58AE6C80 97B4BD8D39D5DECE 885F3711D57DD28D 8635F6CB8474C294 DB626543FA34F1E1 C96E3CE8F0902EA8 5E5A4781A2F2D491 8A59C1A0CD153A25 A33088D80E12FE09 80B6CEA2A2EEAB41 5C0436FDC7998624 3C222B1A4271BE69 1ED1C36A6C616ACE F2AB444DA001B983 0ECDE521DCBF1CDE 38B3488777C65446 47223F0E8793B423 FD55BC5BA9A88ED3 801B81904213330A FE981BB43F6C6FD6 7EB47185F576CAAA B9E062EE6C983BD4 30FA6E4039C4E9DA D8FD25202BA1E3DC CB4CF78CAF46787C 3F23F3199742C60E 6D5FBBE6665723F6 D91D675A61CE283D 38B9EB25D4D75CBE C11433A34F3EDF99 AD1A9EAD5043A646 0633E226B3B99E0A 28CB90CCC48E1419 825B2DC504926D9B 8693F66F8639A976 99A806FB93BCFB27 50AC12AC0065DF22 A2FFCECBD06D8F4F 7F9D1A377C90447F 5B18D82C3932BE5D 2E476FD437B2C5CA 2653C1BDDBEB3D48 1C1E4B13B7B5707C 7BC6CC1E6F47E178 0CF022C894B36065 7C8D453420A75A13 CE3116A0A6A6337A 7144DDAF7756C214 1191FCA9D14959E6 AB07E27506362DFA FB8F5C873B254E6B 4907503A3AA883BC 737C15D47D5285A1 E797FA6932783663

Read the ciphertext. Strip whitespace: 3,408 hex characters = 1,704 bytes = 213 8-byte 3DES blocks.
Derive the key. Password = A858DE45F56D9BC9201209241303 (name+title). Key = MD5(password) = 32c42067491d271c314ff37a7b318118, used as a two-key 3DES key.
Decrypt. 3DES-EDE2 in ECB mode, then strip the PKCS7 padding. The plaintext is 53 GUIDs as hex (shown below).

Decrypted: GUID list

  1 71ce94ba-d43b-5b97-a024-56d3d2e5defd
  2 ce2656c8-3f10-4fc4-af14-0a3d71b93911
  3 f0cd08de-0065-84c0-a020-463a6c59e63d
  4 badf7c22-9c17-850d-9f74-1f524588169f
  5 ff6953eb-bb6f-4d70-bf26-43ba47a35c8f
  6 0608c2ad-219b-3e0c-8889-ea36326d81ef
  7 0314163b-119a-8a9f-beac-032545687bb8
  8 f35de2b0-b78c-4600-9b8a-76b3113bbd7a
  9 b51a6f83-166a-7e9b-b207-2ffcb504742c
 10 dbe92a59-c8e9-6d2b-91a7-6849f847881a
 11 1311acf4-4a83-34c5-afb7-b8d8797c7f83
 12 4e011d18-2f4c-4ff3-a634-9a9a7eba95f5
 13 e3a1124d-d005-60fe-9e77-c34acfbb8158
 14 c5473e0b-1247-25d2-8787-3c5c539f3ba4
 15 6431411d-9a1f-032c-b0f8-71c6b148c240
 16 9d4afc3d-f389-168a-a820-a7e49ac34b94
 17 c6fa72a2-b917-4c28-8053-a43bf4297aa0
 18 855d30d2-036d-7177-afd6-5dc2f39d1b6a
 19 44c9df51-1734-4bb2-9baa-9a73f8a2d017
 20 213c017c-1f9e-22c4-b8ae-823be0183d6f
 21 db928c84-7e2d-3db6-9fe1-ba006ce548fa
 22 8ae9897c-80ff-5db7-824a-789a496f884b
 23 0bd2cdb0-730e-0d56-b8c5-e7ea2e0108bb
 24 7038a6a4-4f30-8732-97b8-bb779fc6c60b
 25 412fb6cc-c70f-08f7-9294-5bf5c82a8ec4
 26 6612f9fb-5129-44d5-9233-ab9c1f33c45d
 27 276ed733-e362-25b3-9003-470cdd75f758
 28 2d36659e-2251-1fbd-88b6-255f0c746675
 29 a5d54023-2b10-7198-ab5b-f6786c287a4a
 30 8a89ab83-b3c5-51ec-9234-4a21e1045577
 31 db59fe19-28ae-0b25-8c81-4d4a0a1cb163
 32 ce056ae8-852a-4cdb-ad62-0b0c507de286
 33 29f054e8-545c-469b-be30-c457505f47ce
 34 aba173f4-19b2-7f2a-a875-dd0aa745f302
 35 b18023ee-269c-319e-926d-9108cf97949b
 36 9bef0b3f-a276-093e-b376-ab72224ce46a
 37 442c83ae-9535-4ca5-9f18-bc1e43bd3daa
 38 fdd3938d-3da7-7959-8f3a-c571b5fc3491
 39 8cb79075-bb30-42da-a9ef-552512b836bf
 40 e1e15e66-430e-0f16-a410-73f773939f45
 41 484f89e8-7bbf-1f8b-84a5-385024a5b6b9
 42 9a7d25ec-fe97-46c1-b359-5d7133a3eaea
 43 044010a3-2b05-3ce3-9231-5ac7568b0464
 44 3a6d669e-978f-169d-b695-ef71784d7eaa
 45 962f0b8b-c90f-3dfe-aef4-e981c6175ff2
 46 8d0f95ce-1e9f-02f6-b1c2-02db05c35200
 47 8d4913fb-22b4-5fee-92c4-70d5c3a64cad
 48 6734aca1-360f-31fa-907b-5d24f6124665
 49 652162f2-ccf3-2dc2-bf72-1f84fcc736b0
 50 e6623fb0-b62a-1ce5-be53-6f06f5da75b0
 51 24fb7772-abca-167b-a450-3445c9cc8952
 52 ded436c5-1a82-28a4-ab8f-22ef81d93c14
 53 12647462-d3f2-1453-bdbe-514d9260ad09

Explanation

Explain the mask digits. The version nibble (13th hex digit) of each GUID, read in order, gives 54884384763462014742350804217504473047401431305321121. Exactly this sequence comes out of new Random(953).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 199 of Run 34 (seed 83,105,000): new Random(83105000), Next(8,64) per post. The RNG predicts N = 53; the post has N = 53 ✓. 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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