201210021340 10trg0

explained decrypted filler

3DES(name+title) ECB, 47 GUIDs, seed 377

Metadata

Post ID: 10trg0
Title: 201210021340 → 2012-10-02 13:40 on A858's clock
Posted (UTC): 2012-10-02 17:40:23
Timezone: UTC−4 · title 13:40 against posted 17:40 UTC
Author: [deleted]
Account: A858DE45F56D9BC9 main account
Subreddit: r/A858DE45F56D9BC9 the main subreddit
Category: F3 filler: 3DES(name/title) → GUID list, seed known
Size: 3,024 hex characters · 1,512 bytes
Cipher: 3DES-EDE2 (two-key Triple DES), ECB, PKCS7
Key: MD5(A858DE45F56D9BC9201210021340) = ddbb86320d233f636f7e12c7a56194fb (name+title)
New here: Missing from the community archive; decrypted here for the first time. (new results)
GUIDs: 47
Filler GUID seed: new Random(377).Next(9) ✓ verified
Run: Run 35 (seed 854,622,578) (seed)
Draw: 29 · predicted N = 47 ✓
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: 1 · 0
Tags: automated (decryptable)2012Encrypted masked GUID listarctic-onlykey: name+titlerun: seed

From the post to its content

As posted (encrypted)

4963CA8A0F31DB29 2F95D04A3D57886A D2C04A3275516EBA A592CB316824F889 165488C2B7972DB3 4F6E5A39692BFEE9 B9EEF3A49A2DEB2A 920AB5A4C9C83F90 42FC98A9162D8D7C C16AF2D1DCB89D4A 7FB18812521731EB 21A871F140F70DF6 489F4AE85D83A46B 7743E6882B92F234 55F533B71B95A08F 925553DD8DC5CE46 248EAC98EA351511 7214E6B012F91CB9 919C3CFED67B9024 1882551AF76C68FD 2D86154A328FEA2A 6663C4CC5D32D485 324C68FF8C0C9261 6A3C66DD68194CB4 415116B0A34AF1B8 CA1F6A74C23D1C64 4273005EFDB0FD9C 0B97A5D6EB8B8748 C5CEA75397713E3B 608A837A93120F4C A647832F6A259A39 8D85D4BCEFC47C40 035C430CF5F628AB 141A670E340D9C9C C9D8BC71ACADF93D CAE88079CB0BDAD0 C400DDFB22CDE235 068F34D6E97AFA78 1D0E2DD36D73DE24 62929B04073C117F 54FC460E81FCD90F 840BE71983B35A8A 3E49B2CBB1218EAA FDD59E23D8ED66E8 39BD0260B70D3FF3 AEB4D1E7F18099E0 D6492FFD323CDDEB 4279207FF1CAFF80 780C527BF3F26764 F3D8199EA2272988 BD4A7E8B1D8510BF A04512231EF8FFB2 854E28024028F8C9 9E9F301360813561 949DE68CDBE5C2F5 010FADE18F89C041 9B49EDBBB85DD3A4 2FD0CB036EE9ED5B B4E79664CF9E01BA 8F688B2FDD2D9323 D8C397D1FE7F4317 6898DF5DA5A3C924 EE45AB1526C8A135 99EC611ABC82F887 2F05158C155DF992 5731909C20D0B4EC AA15A69A5D89DCAF 329FB2675B24EEB8 B253B1C16597B5DA ACE3BBEF789511BF BB962BCED22797D7 20D666D89906CD90 1A2E785636E7D42D 6E5DB62642CC46A3 F9FE6B1C1B25901B A3E35AE39E27D62D 7CAA474D836843F2 B3819A59688BE50A 764F68151F954F0E 7BD7571C3C72E8DD FF4E55A819DEFC37 E67290DF921D6D36 81886C8A7AF953F0 F45DB7EB6C4110D9 E57E530BA6F037EC 7B2EA8017F02D455 97BFD84CE5F9EBAE 87F36FE3154D18B4 E9A0118AFCD053C2 19468E3E500DFC19 CEA1324D5C8DBECF A0B4B1C3F443AA90 A8D40CE93D72C21B 8CCAD4E57641B411 35496C7F3B2FDA1B 454D233622624458 5F1D36899B6EAB50 55074F523939BDB4 CB1755EE90BFA9B2 59B2F4D3DCD9E258 D35439DE560F7CBD F925F7BC4328E99B 33EA410AD342529C 00EAB7E0EFB6147C C4D5CCE35FF09DA2 CB94140B8E1B5393 35AF121EAEF03390 B6F4FE03CC15040F 8BB05E616C118B0A 65E298CBDA72CAD1 4D745E5925325668 0417C56145091ECC B4C7C21E8B0177A9 BD3D20DF4E8608C0 AD6C7B91D8A35FF1 D0F9BF3A9AA741DB FD58815BE60A4F7F 22FDCB47B7A38549 78BFD28D54F6FCCE 0E62EDF4E2C16842 F92DB6FD741DE923 2D4E2C12806767F5 E1E223D2F8B6652B E8CA26F7849195B4 5CED4CABEC4589AD BE771BC90D822025 ADA1B1397A9C6454 7D8908522082CBB0 A490C211C9C70073 898902A951AC1C69 6DA8C9CB8131C86C FB3063DEE3D09B6B 95933156F7F7A4DA F8886A08147BE254 DFC1D65D1E983C81 71BA74F9E902C104 41576337555D1242 2CC0579D1572207C 1F7F72CA6016B732 D1C25D7C116AB67D 84680A1FE1DA8D8D 33C5890FD6CF9212 D6EE046F24E31AB5 9399264BEBABDC62 5218AD70B8E440AC 32A9A630C24AA501 A8894DDDB5683FD7 37F33B6A94262304 47404ABB5AC56B4D 1CCDB943D4CDC5AA 2F28942765EFE62D F96ABE770B0AE498 E88D61AD7B7892B8 45A837C2303215A3 D072B23C878A52B2 69293933DC7981C6 97401C20D679295B EFE84FFA4C2B3F68 AA977C0F90AC09A3 A68BABD817866D9E 7DAA237AB36FD880 230E9DC90C961FB4 28F7813EC37866D6 5C2022B2FA887BDF 5100CD429025D6F8 C660CCB04F129F20 598CB40CEFE13A6A C0B8709AE47A2E92 B09C76284B3F187F 743D0B1786EE40F6 CB705811755F8ACE 6124FC3D27AF6AD9 527D17F91082335B 0A9BE4D81422E7DE 809D842BBB0A6D7C 2193F34CFEA4297F 3EFA9537E272CB13 8AB9A30A2D948C60 BBBB5A54391B7936 458077C755F29F7F 147871D5762EC7C6 CFF13D8F72599D96 603B42A9C37FCFBC F14E32E9ED6457AD B6BC7B963CBB062B 7BF121620EFFB89C 318AC8BBB58C77FA 88A0E6CCBD13FAD0 D67F474433F20823

Read the ciphertext. Strip whitespace: 3,024 hex characters = 1,512 bytes = 189 8-byte 3DES blocks.
Derive the key. Password = A858DE45F56D9BC9201210021340 (name+title). Key = MD5(password) = ddbb86320d233f636f7e12c7a56194fb, used as a two-key 3DES key.
Decrypt. 3DES-EDE2 in ECB mode, then strip the PKCS7 padding. The plaintext is 47 GUIDs as hex (shown below).

Decrypted: GUID list

  1 e536db10-7732-6308-bc93-4f6830366edd
  2 3020c745-6ad3-306d-b55b-1d1c75692883
  3 8d0c7d25-1aaf-26a4-a05b-2cdad04e87e4
  4 21fd757d-81af-0c31-8fdd-c2a1fea16a91
  5 726a31ad-82cc-3956-8bcf-dfd591e611be
  6 14517fff-e6bc-0fa8-a297-cd8a0dc98657
  7 54b071f9-c6c1-7450-8059-286148ac7ffc
  8 cb2eb258-4d4d-5248-a0ac-fd1f0f826765
  9 e6a7538a-55b8-55c3-ac37-65e065f63ade
 10 2d0bcc9f-51b6-247d-9c29-c764a6826d8f
 11 cf041ce1-3430-0264-89c2-18f4f8b47d4a
 12 3e049664-3eef-72e9-a2ce-c7c78729c863
 13 9e613a4a-0e3a-7c74-9468-1e00fcd1af9e
 14 d921075a-f994-5d57-a2ad-9c276215d46e
 15 514e48b8-0735-7e47-af51-e9223c9c6b15
 16 4ff7ff60-6487-463c-9e49-eec1b1e576e6
 17 f86ecf2c-f577-3698-bc43-30cf0fec808c
 18 05952e9c-737f-6ab1-ba02-8825f834a20e
 19 2ac61548-4215-7a92-ba9b-6e71dffd6046
 20 e0c2ad1b-14b0-2cb8-9e84-db32bb4465ed
 21 0ea0cc2f-d9cf-8049-90d6-3f093f1bc4ec
 22 76563b52-0afe-3c37-9792-17167f3647c9
 23 f6faa78a-f350-697a-aff2-fb94076ee089
 24 7ec3b71e-eb9a-6ec1-8e6e-cc1b514d8b25
 25 ac3a16f7-9748-505e-ae1b-35ba67fb3689
 26 a27bb709-b6ce-0c34-85db-3603ee20c1fb
 27 5885453f-ad88-01fc-bed6-988e28bdfc6f
 28 dd445b7b-7e57-26c9-8a1f-6669d0db15d1
 29 7d1527e1-b6f3-692c-9c98-b0ef6ae4c4cd
 30 c4f91cfd-3b0c-63ba-b420-a4b6d3585692
 31 288c3ab7-3e75-3a35-986f-7ce1e900bcd7
 32 48c055df-80a8-6db4-8fee-fe03fe7c36ed
 33 f6a5b1cf-a32b-8974-a99d-522269eddddd
 34 e1e46df4-ea6f-39fa-b510-bbbe0063d081
 35 7e75c8a2-cc0b-2dd7-9d73-64b1a688ed30
 36 01e8fb5e-e6b0-0ef0-b212-581b5ddc22f8
 37 d0ba8bf5-f6d4-25e8-9b10-dc8db3b18466
 38 01bfbf62-072b-2e32-bb17-797019614885
 39 ace42b9c-dbe2-83b9-bcb5-a39e4b03a58c
 40 819efe76-8808-07dc-a9ff-01f3e51ebd96
 41 dba2b48a-a7c2-8169-86c1-ebdbef974e70
 42 2a8c3fac-3db9-4793-be73-8f6f881f9e61
 43 f4860f7d-0a2a-76f2-b193-8c16a4bd61d1
 44 a1b93d1b-a7d2-84da-84fd-32ae479fe7fe
 45 3eee100e-d791-6cfd-ac6c-fae673633f1a
 46 2f717377-78b4-7528-a46b-16028cb79bb5
 47 a0fb525f-3c28-54ac-8f43-d42a152ae882

Explanation

Explain the mask digits. The version nibble (13th hex digit) of each GUID, read in order, gives 63203075520775743672836650026636832022808478675. Exactly this sequence comes out of new Random(377).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 29 of Run 35 (seed 854,622,578): new Random(854622578), Next(8,64) per post. The RNG predicts N = 47; the post has N = 47 ✓. 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

Related