A858DE45F56D9BC9 archive

201212281600 15l9oa

explained decrypted filler

seed 614

Metadata

Post ID
15l9oa
Title
201212281600 → 2012-12-28 16:00 on A858's clock
Posted (UTC)
2012-12-28 21:00:03
Timezone
UTC−5 · title 16:00 against posted 21:00 UTC
Author
[deleted]
Account
A858DE45F56D9BC9 main account
Subreddit
r/A858DE45F56D9BC9 the main subreddit
Category
F3 filler: 3DES(name/title) → GUID list, seed known
Size
4,112 hex characters · 2,056 bytes
Cipher
3DES-EDE2 (two-key Triple DES), ECB, PKCS7
Key
MD5(A858DE45F56D9BC9201212281600) = 719231b025f8e871996e5957b91db96b (name+title)
GUIDs
64
Filler GUID seed
new Random(614).Next(9) ✓ verified
Run
Fixed N=64 (Dec 2012 - Jan 2013) (fixed)
Draw
Sources
community-archive, arctic-shift · body from community-archive
Links
Reddit · Arctic Shift · JSON
Score · comments
2 · 1
Tags
automated (decryptable)2012Encrypted masked GUID listkey: name+titlerun: fixed

From the post to its content

As posted (encrypted)

B6DF89257D353405 4632432E7EA25489 DEC30CB047DB6A44 7CE96210BD0254BF B9D7EF8CECF5F976 0E9E320AFFBFD71C CAABCD3AE8832373 224D518E2E74FC7A 834F6A09EB703701 063174FB0771DC38 2AE898088AE4CE90 0FEBE150603FC4F2 D56B6D49E74046B4 6557E11943FE1037 D578EFC197161FF9 3CA206BB93100420 344392065A4C6A65 0334B246626B7218 06800468072B6060 C578F107C18F84A8 2FC3446DEFC26F48 93B47198570D9FC3 55F8179E64CA8DCE 967796CD46327502 6B2CC205EF0526D7 684FF5A05412B232 53CBA883577435BE 9654FC3ACD8614E6 A62DFE3C5035B1DD 14C2C4095EBC4CEB 20B169304019C804 137B17530BB67504 0E6DB905D880AE40 09392E076B65B3DB E491AE430AF9BE45 938302895DD61E05 296F3D1C4FFF4B74 8F537E5A01537E76 67EE38007469CD00 5D3FEF60423AD626 0823A014EF319B80 D7DA423C3D51308B 7D508218A5A2FC93 72AAC4CD227BA6E2 2F8F44744C5D7F6F EB2D23E737C5D590 E26CDDC58FFD4FFB 04C086ADD1CA9819 69B7074E184BD724 7BCE2FACFF9477DE 26CAB9B9A434F7B6 3E06AFAD8C314A7F BC15D0BE391EDD60 5BE167437CC4454C A965A1567D5EDA6E AB5A067D55CD6479 FD3BE50BCF35AF46 CB746F2CAB591429 99317FC3F83B2677 C39983E7F57EF6FE 1F57B83A384CB981 0D2EDB5ACDDE7E83 03EE180368082C5E 7E22E9F531DC97FD C06272A8F368AC89 7C83572018075E86 CEF1684ED62C028B 2544FB1A56DDB34A 4ABA0CC449CFF24F 430B174E6DA4EB68 9B344487C39D7EBA 8C6318D16C8596C6 3D26CA66CB0EC35B 03BC7783AB15363E 05F488462B04F1D0 91D16650B07DD534 B632FF669C05F99B 42A19678ABFAC692 13D75855ECE4D60E E261079F40C1557F 9482D6CBB235ECBD 43FD0A5858D3CE49 259DAC9E93C6B1CB 0D381F3878D6027D 6109F65B103E793B E109277FC257F14A 93F060D723B45925 690327A4474CAB3B 5E103077E905E23F 971EFABBF6B598EB AC9B2331C35DC0AB 20968CB829727AA3 7C140877191CB10A F76355D28A9B4F03 DEA07BBF3A6CB5DB F18DCF7CF70E5814 0186EA558670EFB6 6A89234BD85BD174 05BB3B00D5E76999 41EB2DAC4F4F0B96 191193F73B4A3015 561055AC33BDD084 3EB8325DBA016D1D ED30E1EE10E24995 E71E2B72B66F9E53 5582D31558E1913C 2846A027D8D5DED4 C3378D2FA1D93EDE 77043B2F4CF7A648 0261109D751FB1C5 C993C7D39A298C41 F0102DB53684DE73 2B299D71C7F64A46 7CD14EB60BA3E278 D5DFE97835C244A8 430BBD86F7413B95 420C1B4AE2F9C066 59FCFD3AA5CED5FF B6F681F9FB3F40DD 786CD6055A120506 7BB09EF60C94DE66 7791DCC6B094B29D 99011FDA59445019 9F44652C9F70AE48 84B58D94E74288AA 96C674F9FEA5B514 16978332A3CAB4A9 DA4C98E910AACD0E 89FC5070C5A3AF5A 109CF274F28A3407 476F07E103D40B5F B3B2E70809FB65FC 62D18212D267A5D8 CF2F7825E1501600 FAC894BD320B9B99 77634F725CE58C8F 056E31F28E666B18 4CEC7A31B2C32FA2 E3F6215F6C824912 1B2A6F961360EC0E 6C489096B85BAF54 245D615BAB105888 CA52F55C783D1A4A 060EC08E757E970A 95E12A0E6C6079F5 E5C4BC157D4681FD 9B7904DC9B70F829 B39E6BD4C911AB58 B86D312216157D51 9CDC23A44BD2C515 38A038669D63EEC1 095E660034884D77 77E88CFFB09A352C 62839ED99FB8DE88 E82937476EF86021 F9EAD72A43797739 3E2819E96D9EFA31 C48415FF2EB9887B 15E7BEABA66FF715 D88EB12766BACD8C 14EF709662CC2E9D 15BB477CC8B1C9AE 8B6C09D1F554A425 946941B241B64E30 BA813C34E4B7E187 4F1FA9AE1539133F A72127D41C5A0A5C 11EA742E4D0C4851 BB4C283D908280AC E9EF2DFEB07021D6 A410E5B6F8749FC1 73FF92235EC51B2D D96B6B10BC8C137F 1385EA667986F107 89DCD7330D17C319 9DA9BE9922742330 A9FF4B0CA5595B19 7F2DBD0F5C8A3729 B713F497751E3552 DC3F1416BEEB476F FD1860659332EDDD E5AA168E30D35F86 1E6A1D9E3626DAEB D610E80D251063F2 DA11DE68383EDE37 753039A63E403B9A 91E68D805B50B36A 12630B0844B4B771 628CD23AC83DE601 0E1D9FA41239D0CC B7F748D7B8DA2FD9 E8E150C30AD47A04 C96996F7F6DD2744 F8387E1381F38736 26959BEA3BEE9890 F88BB02224B11078 C21C33E0FB1AC838 DA038FB0055BF73C 86B05ABA205DB628 199D2B6EDD2333E6 9E0B3EC4491026B8 37D468F32FBAEB59 4DC14126102FDE30 72F1C9F5041BF2BA 2DE7E8CB4752F356 C343B549908A5F1A A164821F3B715D2C F593BC72BA79E664 650FE92E0D75A7C4 5E15A90AE0291B37 5D24BA9D3E8A4A44 7916C0542C1ACDE1 6825F3C26DF70FE3 FA5A63BCFC72DD42 F71A7B006FB7C381 71E103E4D35758C3 E508637585087BF3 9B0C2653648D4909 625B503BB1CD9DA9 756877EF89C9D3B2 40C6FB261DD6C0B3 DB660E8EE26A6F34 E7A2D46508B551CE C0FBFA36BB8D8291 EE6E4B4B82B6C9E9 7ED51100E00D09E5 8416E3BDA7DF3B57 411C95DF49E9BA38 FD369559D6523A96 925C46AFC20B6583 1B84CDBBCFDE9ACA D2EC8D3EBC179434 2E4EE89B4D36BDD7 5FD139F7CAAB0869 2E09B86186372201 6EF4EE64F53B9D42 7844E37CF0606722 F2BD5EADBDE93C5E A45A61777435E6D6 BF2452F5FAC688A8 AA18CFB735F6A1A2 DA2AE4E1697D7B9C 23BCD075671287EF 22B81C48BB696806 4F84F667164F0B1D 800076B3A917A19A 592689C43A3EA0C8 B4DDC1681E783272 EFDEDAF4023AB51C 52C3EA090A2DBD31 8EC6BC742D702533 6E89A08999A8C9C3 3BA6628935B74403 8F55EF16BC845FB4 A32DD766CA00876C 053DE9A656BC3730 1AC6D254B86E13A8
  • Read the ciphertext. Strip whitespace: 4,112 hex characters = 2,056 bytes = 257 8-byte 3DES blocks.
  • Derive the key. Password = A858DE45F56D9BC9201212281600 (name+title). Key = MD5(password) = 719231b025f8e871996e5957b91db96b, used as a two-key 3DES key.
  • Decrypt. 3DES-EDE2 in ECB mode, then strip the PKCS7 padding. The plaintext is 64 GUIDs as hex (shown below).

Decrypted: GUID list

  1 b55527ef-c510-4d4d-b738-4aae28510873
  2 cdd50da8-2a88-8d28-9184-d83401a24492
  3 e93227d2-f7f4-83af-8d52-3d1064032ddd
  4 83beee29-16e9-51be-8cc9-edd2bc46bedc
  5 17fa0c0d-5bae-3b5e-b395-7e9c5ef41f09
  6 0930f830-4877-10e9-bbcf-6816cac69e51
  7 ff515c2d-610f-0adf-967e-e79b2e72050b
  8 76d0d9e8-ec04-4efd-9c5e-683739b508b3
  9 6f150b8b-1492-838e-9424-c1e928a0dba6
 10 640d19b3-d2e8-648b-8f8f-271fde152a30
 11 b0fc9ed4-ba92-5f30-b128-6512180ca933
 12 dfd564ec-4d56-738b-8ec0-94aa38ddf632
 13 d4630ded-99f6-608c-b5b2-bbb47f2bee2c
 14 84e85c8a-1c03-8046-9b59-3c910aec4dab
 15 b5894592-9594-6b1b-9659-55e805575ef7
 16 a198464a-8ff6-4c32-b189-fd4a971788cf
 17 e952616a-5a24-89db-b967-2eb59a1dc59a
 18 ad67196e-2efe-69cf-bf9e-a14e13ca303c
 19 d6a2b4ba-d92d-2d6a-ae90-ea330efd276e
 20 0866ee44-0a97-0250-ac89-cc74c02bf647
 21 16525509-052e-3212-a03b-073cff00e0b0
 22 0da40668-0e65-4490-81b0-059e5df760e2
 23 ed319497-994f-6649-a352-ae96c2a60c08
 24 93356cfe-ea66-4354-b300-9f5329384fac
 25 2770d0e7-68f9-7fa9-a95c-1f137cf14e9f
 26 494e3c0f-9b7c-395a-a61f-161fe8bbfe87
 27 9f4d2a26-b690-7926-94e7-57e42d29a6a8
 28 67cd07b4-300f-1a75-bf63-07f0795eda6d
 29 e4581bbe-4965-11cc-b120-2082351405b2
 30 51333097-b6c6-57a5-b230-71242b88e62f
 31 32dc07d6-53ac-7926-bace-6b021b37a901
 32 b777145b-ee88-1ce4-8264-0173a0c0d32e
 33 af919d86-04e2-13fe-adc9-7c33fb5f432a
 34 52d93070-2a9f-396d-91ae-d52eb22275d3
 35 538294ea-ab96-0952-aa7f-db35b2774031
 36 85f6a62c-2463-39ee-93eb-c6a66a65dbb1
 37 b2961fca-0d7b-5d3d-acd8-e481b634a0bd
 38 7782c8b0-2dbb-71a9-93c3-0620642f10f6
 39 9dbc337b-e85c-4be6-ad7d-413a77703402
 40 b61600a0-f2f2-5211-9f5d-15cdbbc50fce
 41 829c7adf-ce14-7c51-a011-f2148a165e59
 42 eb3d7fca-a40a-2af3-9641-c02e6a2034ff
 43 0f76ff53-e2db-312b-8172-bcec3776029f
 44 96cb9ccf-31ae-69ce-8ba6-c95fe641adcb
 45 087edc4d-4fb5-5ac4-bb24-360afa05095f
 46 cb7bb15c-48ea-493c-af66-27edcba82d91
 47 11118dd9-ce6a-20ee-b663-1d20806c4760
 48 194f4be9-70da-04a5-9c1c-c936a925e1a0
 49 85e7ffda-8ef2-1837-a1d1-8b256c5cd762
 50 0e3d06a0-f718-3f63-a3eb-0525d7e6a35b
 51 54494d48-df32-60d8-943f-880b269b0d5a
 52 796f8211-5d65-405f-afc1-13fe47375b7c
 53 5533353d-053f-78bf-ab92-d1a51d0a5649
 54 f04c6637-9205-5be2-8887-6eb52c399a40
 55 ac66cdc4-f10f-154b-aeaf-e203f0cc0023
 56 bf4c786a-99fd-072a-bb05-2644ef1d4670
 57 2c33272e-66b7-1c51-b445-d1b72c1f5f4e
 58 61620ec8-0282-3a24-8be6-1b18086d624a
 59 e0e6fec6-d0b0-6bf5-bebf-a2d650718e85
 60 fba1d3d3-a28e-8822-ab11-b48efccda0f0
 61 809d1024-9a25-2a00-97de-300b54261d62
 62 878e8aed-6062-7e4e-a4d7-fb6608d5228f
 63 88327cae-c735-3416-ab2c-a8917dae2efe
 64 3105005e-2feb-3003-b717-5d963c1ad8ab

Explanation

  1. Explain the mask digits. The version nibble (13th hex digit) of each GUID, read in order, gives 4885310486576864862034647371157113035745723654201364751013682733. Exactly this sequence comes out of new Random(614).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.
  2. Explain the count. Part of Fixed N=64 (Dec 2012 - Jan 2013): an app start that posted N = 64 every time.
  3. Conclusion. Filler. The content is fully explained by the two RNGs.

Related

Findings: Mask digit · Count RNG & runs