201210070244 112v41

explained decrypted filler

3DES(name+title) ECB, 56 GUIDs, seed 752

Metadata

Post ID: 112v41
Title: 201210070244 → 2012-10-07 02:44 on A858's clock
Posted (UTC): 2012-10-07 06:44:51
Timezone: UTC−4 · title 02:44 against posted 06:44 UTC
Author: [deleted]
Account: A858DE45F56D9BC9 main account
Subreddit: r/A858DE45F56D9BC9 the main subreddit
Category: F3 filler: 3DES(name/title) → GUID list, seed known
Size: 3,600 hex characters · 1,800 bytes
Cipher: 3DES-EDE2 (two-key Triple DES), ECB, PKCS7
Key: MD5(A858DE45F56D9BC9201210070244) = 70791cbe383e9846818f46f831412494 (name+title)
New here: Missing from the community archive; decrypted here for the first time. (new results)
GUIDs: 56
Filler GUID seed: new Random(752).Next(9) ✓ verified
Run: Run 35 (seed 854,622,578) (seed)
Draw: 356 · predicted N = 56 ✓
Machine boot: 2012-09-22 10:16–10:36 (seed = uptime at app start)
Sources: arctic-shift · body from arctic-shift
Links: Reddit · Arctic Shift · JSON
Score · comments: 12 · 3
Tags: automated (decryptable)2012Encrypted masked GUID listarctic-onlykey: name+titlerun: seed

From the post to its content

As posted (encrypted)

CF9F9CF5EEC0CBFE 33BA5538080F1E9D B7BDD44A740753F6 DA9762A092373AAD 3953BE93E601CE54 C170FFD2E6BA3B31 9E81CA829D4B0EB0 0D8B1156EF4CF3A5 0DC0464E52486DC7 D8594359F3EC5B86 34676CA255830F4F B489659A4E1AC540 5395AD6723B7FE55 3B9F4238D084CC9B 41818509EA5334A1 BF7EC9902F200357 B17292CDF87D0B7A 41F5C7230955BCA1 F00761FF2613DE62 F0B7293E4033C00B C4678B8A0B23A2C6 448A0218407D1341 EDB02D388F531BC1 A488A1A3B9308DFA F7221B95F7EC1E38 CD4928FAE8F669B8 20D6AC86FAF5BFA3 8B0DF9268DB2383A 9C54B31C2FF2F5DB 39EF731B14BF14A2 3B44EC8DB6DA6916 D502568EC93E1243 A03B0672656DDD0E 14A850F1FD0B2F36 5F3AE5263DF121DB 9E1B28DD39EAA508 0785ECBC77EF9F46 4BCADF342802F3D1 46770F2F736AC7C6 F5E0FBBC7094B071 E723A27C12B3DE18 7ECFA87978B30B7D 7FD082ECBAD46A97 7306AF1AD2D3C160 1DD8F9CE77B9EA64 FCDD94214CDCD5E8 13C3E6CFFCB1FEA6 AF58145EAC52F885 32026B479C0687FE B12F68A2D42EFC38 22BEB89F6B00CB40 8910C2479E6C4480 FD341FE79C7F91BD 3342B1B8C5FC9EFB 5A5C1C861281B123 8A798C5BA60D881A DB167317D180E658 E90647CDB70F0CE4 B6C79593DB842B06 02F22038028A1F8D 24DC7F1EC6D2F2A1 42B780D29F54FEAD ADC6B80A2252B314 46F07342F716C9A6 FE98EBFC82A92203 9D203C0D5A58897A 40F4361C843F0A5D EE16EF24725691D0 E0E704F93942991D E69B325E11669216 F047E8A02EDC2F0E 06CBE183086A70AE 32573CE922B59542 4A170AE16E4236B2 DE5A6EE96E29B640 BAF7C93A87160A19 36A428CA2CADF764 0E52C63F2D74D6CD C7ED348407EC2003 A86CA586273368A8 7E5B13DB7B8D5D43 D5DA8FA2C157E22F 771B9B3CE65CB7B7 9BE5DCFE038220A1 C39894805B551C53 9A3A6A38E967C0C6 CEEC1C1A5BECD12F 9621F74054034096 8E15E108B5AAA2C6 4055781CDA7D72F5 16452D84BDB8EFA0 5E5C8C9B596443E5 C29D8A18DDC141FE 47296461DE602A22 A0FD150C1C75ED53 6F479003A829F92A 85ABC9DE6B277280 F1000210A7102AE2 C3BFD858FF13C1F5 19B46EE50D0CC6E5 D4A0A88F71E9D747 F2868EB2571A8DC0 F65FF289796185A7 ECAEE02744C17291 3C51164D9FC42FBD 6489783694AFECCA 62006532E3311CEF E836C654E66FA748 EC76E7971B8D5669 432325373AAFBA3E 309EB88EFFC3C23B 65E8823356219D59 06F4CBF72012FC12 D703277CE2692EA2 AA69C71B5943E17E 95EB1FEAB0C1693E BE52C9D779F6CF93 EFAB600308A39513 A4E162A318C041EE AD9D73368BDC02CF E3AF741BEC910ACD 5076B68B16524F94 8713C8EE6347CA02 B13E78A6DCBAE078 BB1379B52FD5F934 E4F42B3E9DCF6B64 8EDBD45EAF3CA6A2 F79CA51F2A65DDBD 4B923EF5E42E4164 A3014AC7A7D18D29 8FE946E277EBE0C6 D636AAD762A04BC4 3D643F8A7CD2B7DD 44EB4314AF7BEAD8 C3200CE73748A737 999A5C1C3B382765 3E6BEB6B0574996F 1CC2BD7FE67CA5D4 FB42D349CA230164 24CF9B1B7738F99F 44D198D19F7D05B7 BBF5F336737519C7 5AB65CB771517C87 D86318B718EDAC0D D426F7257E71F851 A87A20859033E6D4 71421E229DFABB9A 999622BFAC0DDE87 47244C164CD77387 A0374660DD17A90D 11DB7988A8BFAA3E 72C7E7D064BC8C71 0BD70EE7CFF8F40B 80F8B868C73BCB15 4982435E8BF5A4BC F43CB6FE231B25EB E6A52C7179F5700B 82111D79D3F2A634 BC5B9887437EAE8B EB6845C435890385 A1E026A5266A16D6 96F8D3D9B08DE728 6FAA927D5E3FC602 4508067F8792AE85 49DE4BD34C4E85BC A52E737BE2DD154B 9F8465262EF78B47 B1980F7BE6CD10B6 168D06EFCDFDF983 472E4C04EAE089A4 324624B9163FBC01 16CE5BCF23BB3FBB 1357610A7EDE6095 7561D2CDA7C11FDB 3C9F8B2536F81852 830EC95653CEB9AE 8EFDE9D0C3A689B2 F060CBAA121A5FE3 1B930EBBB6261A95 CA0B9A820DB86C0C E3684A7B748EF985 1610979F16A3B7EC 71B922EBCFF3A246 3DB18FECE4EE965E 93BC3C8548CCE643 FEFEAAD2C852C74A FBE24083DFFFBC15 AA829215C431D1FE C032C9068D345A14 8F8B67DAD503B36D E4CAE5E709F5E05E 477A148290EAAAE5 89E29FC80F9CB65B 22E797D77E5E76CA 543E05A2331C9ED8 89FE7696AEA81B87 838D7554359EE955 460A50020669AB13 B943EE32A8BB8D9A 1B785FE3A96EA277 AD3A2940A1DE55F4 CCD41EF0ABCF6740 163934E56745FABC B8F3E0F5AE0F911A 04F8B55D3EC54569 45BA34543A41EA84 20432C4AA640D7AC 0FE2D852C7537D57 B4B9AF4972DEDA8F 10518ABAF5B216E8 B31D2A874953227C A2ED3F94A52E8C8D D383A4F8DFFE5620 9BA5BFA97824FE99 800EB2F7C24058A8 C7EFF24B33B4EBE9 A2251CAC25772EA0 FEA15533CAE7229D 86C59A077282FF44 5364BE7A2735F0A0 9430AE2C107AFF0C 6F7CC822BC9A052F 298B297418746B9C 262B04A3771B0917 EC0EFE84195076CD

Read the ciphertext. Strip whitespace: 3,600 hex characters = 1,800 bytes = 225 8-byte 3DES blocks.
Derive the key. Password = A858DE45F56D9BC9201210070244 (name+title). Key = MD5(password) = 70791cbe383e9846818f46f831412494, used as a two-key 3DES key.
Decrypt. 3DES-EDE2 in ECB mode, then strip the PKCS7 padding. The plaintext is 56 GUIDs as hex (shown below).

Decrypted: GUID list

  1 ab330281-3283-51b3-b561-1c0ceffd4681
  2 4681b843-d9e1-423f-a84b-ceabb3ca602a
  3 208ebceb-9415-3209-aae6-137130f4c254
  4 f32c45a1-7642-0b02-9377-a70393b47be2
  5 ba66fffa-f434-6da2-a009-c10356ac0e6b
  6 2fc37cfb-7135-6092-80e7-a0d02718c1aa
  7 021d456b-9d70-7b73-90d2-959557290884
  8 fe6a7aaa-0944-619f-83e7-6b4e0d6a203f
  9 74a18c72-9cee-07c6-90a6-e695f2052cbf
 10 81d089b2-fd41-5f90-9a7b-d3d095ab17d9
 11 531e8eb6-c352-21d5-81ba-4b9bce106707
 12 4171a3f7-bb6a-5c30-b63e-6502cae7d1ee
 13 9db79943-75b7-50df-92c3-8bcc5763ccb8
 14 60fc5c95-dafa-62dd-924a-703d38e242f7
 15 066630ff-5b43-3ef3-b331-f88b722bd686
 16 bea921f0-c7ec-624c-8dec-6837b8b1d33a
 17 6b56b983-af03-8439-a80c-2650073796cd
 18 d657b849-401f-2f54-95d2-74bb77b2c84e
 19 f7260099-530a-085c-a296-547fb9bd735c
 20 95359034-0729-4076-afc3-f23020aa9eff
 21 7aee0222-d7c1-671e-ab50-1e7c120629a5
 22 18c1daf1-3293-33ff-b5ce-4f0e3a525952
 23 db0ac2e8-070a-0fc8-8f7c-209e977b5c67
 24 11ceff74-1fb7-69ef-8abb-6b96a40539a9
 25 67721f17-6d58-3457-91fb-4e7c0fd5e720
 26 86588bf1-c328-114b-a981-973ef0c929e9
 27 85410b38-3b12-45c3-9fb2-9f4c1ba69f23
 28 2c7c0873-fded-5d10-96b5-43aec57aafa0
 29 f70cb791-c954-20c4-aafb-3b404e624bd2
 30 25352f02-0d4b-6de8-869a-67a0a022df42
 31 5345ce5d-9041-753d-83e1-e2d3d787d89e
 32 7a4606dd-7045-4ff6-9fdf-d9179e713d71
 33 729ea8a7-118a-6a82-aed4-44236c4531d1
 34 ee49a905-265d-74c2-b8cf-ecf0cc0ac2bf
 35 8d917963-852e-21be-8bdf-017b2bda2339
 36 a987f9fe-72e4-3aa0-be95-5509880292fb
 37 19d510c0-0125-8d46-8775-f687f23d5d33
 38 274dc7d3-ba74-748c-a7c3-0a36c8f63c53
 39 3606dec2-1c24-1b93-83bf-bdf11c694384
 40 c8d42ec6-e0a5-8f9e-850c-65ee5e100067
 41 810cc43a-e25b-7410-848f-c3754749a5e8
 42 e2363427-2fbb-58cc-8872-edf70dcee1aa
 43 ea946dfb-86bf-3734-ae3d-941c62820d75
 44 0da5ccaa-0954-39b9-a4b5-9675528bf2a3
 45 9369e0a6-d922-35ad-a795-92c70b7ab7e4
 46 08745edd-083c-01bd-9aab-152f7f1ca34e
 47 27559497-8082-1cff-a1b5-d1c8178200f7
 48 36f26a33-d3a0-2b04-a5fc-519429769e45
 49 8b845548-f420-561d-b400-13023615c669
 50 d852c871-aca5-5533-9a48-39b9a7bfcd5a
 51 86126882-0e04-685d-b00a-108b1c6ca43f
 52 e2bdafe6-5b1d-592f-9b3b-63a55240ba17
 53 afdd8a90-4fc1-1b62-9011-a9f761ed6e20
 54 acb92352-fc9a-6946-82a4-f342ae23cd22
 55 0d34226c-b929-653b-adb0-f297f7108b61
 56 22366789-2758-2803-ab24-fc48b8660f10

Explanation

Explain the mask digits. The version nibble (13th hex digit) of each GUID, read in order, gives 54306676052556368204630631452674672387187533301255651662. Exactly this sequence comes out of new Random(752).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 356 of Run 35 (seed 854,622,578): new Random(854622578), Next(8,64) per post. The RNG predicts N = 56; the post has N = 56 ✓. The seed is the machine's uptime in ms when the app started (boot 2012-09-22 10:16–10:36).
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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