201301112359 16f8uv

explained decrypted filler

seed 974

Metadata

Post ID: 16f8uv
Title: 201301112359 → 2013-01-11 23:59 on A858's clock
Posted (UTC): 2013-01-12 04:59:57
Timezone: UTC−5 · title 23:59 against posted 04:59 UTC
Author: [deleted]
Account: A858DE45F56D9BC9 main account
Subreddit: r/A858DE45F56D9BC9 the main subreddit
Category: F3 filler: 3DES(name/title) → GUID list, seed known
Size: 3,088 hex characters · 1,544 bytes
Cipher: 3DES-EDE2 (two-key Triple DES), ECB, PKCS7
Key: MD5(A858DE45F56D9BC9) = 34a14a42e98ff96095af56604e290cae (name)
GUIDs: 48
Filler GUID seed: new Random(974).Next(9) ✓ verified
Run: jan2013-A2 (short)
Draw: 4 (assumed: numbered from the first post)
Sources: community-archive, arctic-shift · body from community-archive
Links: Reddit · Arctic Shift · JSON
Score · comments: 0 · 0
Tags: automated (decryptable)2013Encrypted masked GUID listkey: namerun: short

From the post to its content

As posted (encrypted)

63960C698922D354 49C77326DEC3C4FF CEFFFEDD3732A52E 4AD0FD041B940FC6 46165C342F0F8A74 7C94FB56EDDD3CEC 89888A96C6B04229 43D081C981333837 0313AB1D18D6F0F4 9B19311EBC9DA7A8 337A879E17E9A1C8 0F7654F02BCD415F 2EF98D62E999D55A 5B97713AA31D5562 000061852B9A1931 B4AD5108B38BAC31 B1E33496A4B154E2 BCD647834E78F736 D04DE964B367F1E6 C9C7261F37DE704D 58403EFE812F01DA 77F8CDC9C9271380 56951C31A15195F2 B5D73E3792AF9F7A 31304AFDE1F00A52 941C1F781AD9D6E5 413AAE69374875B4 60D43C9F4C334C00 6B59C706EAE3C03B 4E2BB60927121365 EF33E27BF9AE0B52 57016E599F1C8F3B 0EC5BA846B802E29 BEC9AF9F863E0055 A6105346901D81F1 7DC5A99C2470CE23 2B3C6C31DD910CEC 7DA9B9A79A3E610F 3E0AC5CD2E51D40C F8BF717A8D69B57E C155985DF2E6DF56 2F13C4226E485C8B 42141406E086EF3D 79470EB523F4B560 E15C45D87230A6D0 1880575469988B5B 0DBBD42C3AFC2E81 CCBC1CB5675BB599 E32B49459FD68ED5 1C25DFCEDC3BC958 238CC7E85C6A66FD C34AEFB144A3A224 22DABFB11535F237 91F869DC07BAAC7F 866720681EC5BF68 AEBF980453B5EBE3 DE44B64D1939B481 47E1D8EE1BC1C53D 23B5512740C5AF6A 30C7AFAF72AF2440 E238DE4B1AEBA48D 3C47FFE36BE7327B 416D67C0AD0291B3 62372398F22FF70A 7A41A55A7DB80885 CBA8B510AE750E2F 88B2EA11FA55C513 49047784F621F0D1 912A7AFD3BEC7957 14A112661EFB4973 B260737EC75A872C EEF1D4F653B6A4F7 A96D69A55F9EE1B3 115107174265BF80 4A8FE454BD4EB9A5 EA917D0436DF18E9 BD6F11B19A4B20E9 EEBCD0B30583BEFA D915D2A44299A73F 604F3677866A1D51 F1AC001EE010A760 C98A95ABC0A56FC7 E2218DE1F5C07F63 559290FD6F30983E 83ACF811C84BDA88 23906B46D5BD9368 DFB30731BD9151CC 39564C224E858590 D092F950ABEFA8CA B460F5B77ABC9330 100C2075349A6BC3 CB601021033D8020 205F241C540A9A8A D58CED89E01A4111 2679BD62BAE377F1 8ECCEB18D69258A5 8A0818EBD78AE68E 37BB92FD6AE2ACF7 EBA73A3E95F41AEF CB4548DDC4273CB9 6AA9F1C0333EA48A 6E9B448950C2D3BE 3402752FDF5AEBAB 413854BA8D340024 69D57E080243EA4D 240F1B81B7DD1076 BA8D4D202285B7EE 62800C8C067324A5 F104475AD8E33E35 7BA227F246344F73 19155BC19E7F0A1B 30EB3C7870980BEC BA25D6FB2681ED74 8DCD1120E35E2AFF F50E73AE59C0C7DD 058E68FD5F4C1EAF 0CD28B92A33AF87B 4718D28BA55D670F 46CA94E1A6898218 F7F28D68D2DFA6E6 FE9A640C8084C007 83094D97E7204032 C5E12F9470B3F931 2E7CCBF6D53666F7 BE7DAABB203B9E67 C627797A0C567ADD 2475D29CBC40D9C3 A4435064D38F0783 1D64534E12EFE997 47C368B0EAE0F6E5 B6C5A81A267EB490 E33B85A1E4BEA0B5 477B92EE9588DB76 B47F38E4A6E7A787 AA1D09A8F07C67C4 C33883B8D2155175 AE37B2F8C865FA2B 66AD285EC27C03C7 D2F73067FBA6328D 902B311A88F03BAE 78E588816E29F811 28AE95F25BEFDADD 7BD3F06E8BB8AC1A 0D39B85484BCC7B4 3CFB02629DDA2CA3 66DBAAEB39C630D9 055109289B818252 60B2F3639C62C7F6 0C327A205E865DBA AB741EA3F252117B 949CB5A275BB12A4 A43753966CF4431F 206F82E9CA712F3F 389722E57DE1EBD8 8DBC6494FF6161D6 403746B5D59EE92D 08E76BC414F7445B 901C8F42B897D7F8 2E8E88C9405F4640 46432C4966C99DF9 3E496B66A78B739D D438539C99ABFD6A 58DCF2E2F2B2DC5E 68938E58A5E64B4B 764911B0E223B2AE DF94F85E36BFA8E4 3A047C210F96EBA0 3CFBBF481ED9FC42 9818AC4E3E0E133B 28FBA302CC4753FE 7616C38A33646139 87855EAF679B8520 E1CCA778976A6689 8ABC8B9D7447C235 443DFF0BBFAFDF76 71046A516204245F B890394520D0DF37 E04B4F7C9F47EC4C EAB6CC3BCD480CE7 E103D439D5D1EF34 EA1A147C7E290BC5 953313E8FD31C17A 7DBBFC7F9F2A8ABA 5BEAD3663E106E3B 961E11E39DEF9C92 51D00242646BF5D5 5DEF86F1C05F8BD1 89EA284154BEBC40 A9D5F014B0DC71A2 6E1E1946600589F5 BC36DFBEC42440AF 383D6BBE9A6E2657 5DACFFBA8FF64DBD

Read the ciphertext. Strip whitespace: 3,088 hex characters = 1,544 bytes = 193 8-byte 3DES blocks.
Derive the key. Password = A858DE45F56D9BC9 (name). Key = MD5(password) = 34a14a42e98ff96095af56604e290cae, used as a two-key 3DES key.
Decrypt. 3DES-EDE2 in ECB mode, then strip the PKCS7 padding. The plaintext is 48 GUIDs as hex (shown below).

Decrypted: GUID list

  1 3dd663c3-6d62-5b7c-9c69-5fa60175e9f3
  2 43b0b0dc-33c0-5187-a7b5-b635732c5a98
  3 20eeedbf-def9-5558-943b-2673dd72715b
  4 cf118eb4-5e96-4f2d-a823-67b78e5741d3
  5 147ad8a2-32da-8fc5-b72d-7a5471a99025
  6 e2e7a5a2-98bd-62a3-9175-823976115670
  7 b0968fc5-a487-2fca-b496-de84b438679a
  8 e5ae2170-6ede-068f-94eb-54b34788f36a
  9 9bc47220-51a5-4a24-a326-ead7c1fde764
 10 020aba51-2900-337d-9cdf-fe4878579ca7
 11 2f0b24bc-5a79-709e-b6eb-1dccbc4aa0f3
 12 6cf7125e-67b5-780f-ba86-d08168a56521
 13 880966af-6f91-1de4-9585-b401adf6c358
 14 24e5dcc2-7908-1ede-9a90-9a730df11ec8
 15 fdc0b030-10aa-60bb-93b8-0af2958f6044
 16 d8c3466d-198a-2dca-95f2-c201ab5c6407
 17 2bacb88d-c048-27e0-951c-b8ffb771532d
 18 09d71351-3c7d-7c05-ab3f-34e0d40e4f8c
 19 82b20dd6-0e5f-00fe-a050-c2d256789adb
 20 e4379bfe-dfed-4d06-9779-41eb1c551d38
 21 afcd199d-3d5f-2d0d-aa7e-cffcf25b4bea
 22 cba969ad-fc65-7d78-b08c-02fa774258ae
 23 0849e269-006e-5ad0-9bff-e74b54cbe52e
 24 f3f96a33-aa80-2fcb-82a5-7d64cbac4830
 25 de13cba3-46a0-1d7b-b8bb-ae0293d437d0
 26 9e91c265-adca-8dad-88c6-40802245577a
 27 6eac4645-a033-3b81-a6a6-e9d5be24e494
 28 20ad27c8-ef4f-12af-9502-4db00e7ef82a
 29 6b1af185-9974-53cf-b46f-d280aae055ef
 30 d532ba78-524f-46fc-b197-6a6630c292ec
 31 a24ed486-ef2f-67cc-adda-9be2fdefb46e
 32 850acb89-238e-016d-8c18-631a35908297
 33 a0560ce7-bcf6-8032-863f-2c3dcfba67b1
 34 266dabca-8462-376c-a677-fcbdc56f9d8c
 35 37295b53-9a65-644f-925f-4a73c39d8d77
 36 ca733a70-8543-824f-b293-eb7b23a28ddc
 37 ecdb317f-7d7f-71ad-a246-9b1d4ca2b8fc
 38 395298e7-9268-1e58-b785-a0767ed6dd63
 39 d57fe882-6dcc-1649-8c40-efc2214de3fe
 40 7e7e1d0a-67e7-8746-b403-e45c895f3c74
 41 aa818ae4-8f01-2e53-9d5f-0be45e9c850e
 42 fd668da0-805f-25f2-ac2e-5a1156891b43
 43 cca9633b-111e-33e2-9eb9-ae6b11da8da2
 44 18efa0d4-b616-4d17-aae4-2ed0cd8f8d25
 45 efe41782-b8b7-3bc4-a73e-0bcbf8d6050d
 46 4e992104-95e8-44fd-be19-f462807bf3bb
 47 871fa549-7725-69dc-aa76-c73412d1790a
 48 06ccf1d6-d8e3-68e7-b64f-09f0ba468c3e

Explanation

Explain the mask digits. The version nibble (13th hex digit) of each GUID, read in order, gives 555486204377116227042752183154608368711822343466. Exactly this sequence comes out of new Random(974).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. Grouped in jan2013-A2: piece A (second instance from Jan 9, daily, zone -5), 7 posts at range 8: undecidable, all boot hypotheses chance-level
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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