A858DE45F56D9BC9 archive

201210072105 114421

explained decrypted filler

seed 186

Metadata

Post ID
114421
Title
201210072105 → 2012-10-07 21:05 on A858's clock
Posted (UTC)
2012-10-08 01:05:33
Timezone
UTC−4 · title 21:05 against posted 01:05 UTC
Author
[deleted]
Account
A858DE45F56D9BC9 main account
Subreddit
r/A858DE45F56D9BC9 the main subreddit
Category
F3 filler: 3DES(name/title) → GUID list, seed known
Size
3,792 hex characters · 1,896 bytes
Cipher
3DES-EDE2 (two-key Triple DES), ECB, PKCS7
Key
MD5(A858DE45F56D9BC9201210072105) = f5d961c8d1928c58a03550266a5684ec (name+title)
GUIDs
59
Filler GUID seed
new Random(186).Next(9) ✓ verified
Run
Run 35 (seed 854,622,578) (seed)
Draw
411 · predicted N = 59 ✓
Machine boot
2012-09-22 10:16–10:36 (seed = uptime at app start)
Sources
community-archive, arctic-shift · body from community-archive
Links
Reddit · Arctic Shift · JSON
Score · comments
2 · 0
Tags
automated (decryptable)2012Encrypted masked GUID listkey: name+titlerun: seed

From the post to its content

As posted (encrypted)

85F08F78EE3700E3 9E742DBFBAEA20C8 8BF2D940E3E59D3F F759E18E693FBB49 506B6916FAC996F6 F426A8CB0FADE810 BFEB1A3330E802AB 8F19D28D98956173 F7C4289745516068 DA42722B75249A46 02863DBE25B8ABF2 D155DF254952E5A8 8B67A36E3265B818 C66091B58BBE58DB 8D2B854BD8CE23FD 78565D25BACBCF2A E20B44EA0BA949EE DCD3384407D035D2 E315CAEF9ABE3E2C 3F153A40226DA602 3B66C98BACAE58C2 45B83159BB30F49D 2DC38274D01F58FC B05E8792F890FE7A 62BE38BF6EF176DE 12B2F9EACED585B5 9D6D5C4BA039F37F 1288E0A0F0222305 FA5EE5711841789B C4F92F918B2B6D61 1D2478FC63A7EA68 E9A8FA1601963DDF 2CFDD23A4179FC40 2662E5E50FCB64F0 247F2AE1781306C3 08D124E58694B479 96627FCFE2047A8A 870BB1FFBF3EE01B 2C66C1606513A499 8B4AA66E295938CC 54E01E0FBD86C0CE 4EADA0DCBC9A48D3 90CD09C65E43C2E0 279FCAEC66714D8A E6FD0B4476E51AFE C12D85C410482537 9E64F6E3961238E4 EC520D9E73272AFC 077AC59AED2C7320 DE614279B890410F A79AA0528B165CE1 7498C8F89E9189A5 7BD9699B0A0ED1FA D820F3D31804F662 401A5285B4717DE9 AC6AE105FEFAE0A3 DC274A04D194B2D4 F9A865D3C950D842 5B0D47744A7E9B55 1DE9771E1F7BFBD9 026476BFCE7C457B C60EB6CDF78EADBE 8B54A28FE8CE7823 BAC72E8866175E05 83084AAC201EF9AE 1EB03ECC8CD6288A C560E1515623687D C01F4BC46BC838AC 3123CF127C91F6A0 DA0AAB7934CBF70E EC19463BB9F77E78 BBFAEFDC484FFF4B 55BF7586DE75AADD 551EBB31FDA5B9E5 CCA9F5C40DDE025C 97F40AF89D5BA767 0442D68A021F0A79 55E7F66015253987 C4D2DBC59126AAB4 D651315DDC4242A1 422D7DFFAF456DE9 EB69A551D88940A0 959B2752751B7659 40474529ECBD587A B7DE09C133E304C1 F88D139066DA0C49 37BBE46DD1720785 5C27E76AE18E7244 0EA6AF6605D8E722 BFFA725F54EC9BDB 3846AE469160EAA6 3340F5C6ECACBCBE 2EED28AA15370192 B683E7CCF1E6CF94 2D1E26F9893B33F0 6505E3B255830144 9C404ACC0A4A1599 29A6D30D0A881236 22B8374998B05F50 5AA9B56E0DCEF63C 75E75743D883ACCF 7831BEC40CFBEAB9 1455CEAE0EB78D46 E571CC6B91F581AC 339347E0D6A0115B EC75A1CEEF28D839 B8C1E8DF4BF50B27 C18387C749986A09 F57D801A66B8B68C CA4A3CB1B5981D56 D7008EEEBD383F01 1F529F7AA2CE0BA2 1988082B5736E215 062D6EBED6D7A137 E7A5D6DAC6C5EB8C 68EC1D0E9A3B7CF6 216D4FC6104CE5D5 973F054A09C305E5 F7969DE2EE5434DB 61477A765ED11E54 1189B1756F02FCD0 2618C8FCE02AAC76 718EDD57142EA70C 3B726BC297DE0710 951FCB0B6458D59D 2DFAD010548AA068 95727A5B69C15A5C 092E978B4B3074C7 0BFCDAE4F7978F9B E1CE0CCBF26AAF21 7BB2A38B90C733EE 34AC01CA4C0F512F 144CB532DB121FE9 C28DA52821EFC4AF 9261DAD22A9AE84B 0B88D655A1049CD5 81AC81AF34FF521D F79C63C3369748B1 CC8136A9D8384DDB 457B5A75B933DE37 07F36F59571F6904 BA25FE2339217483 220BD1991AF8ACBA 4659CFE3A235DBB1 326F752764C489A8 9A17C3D092ED637C 3EA8C272761BF712 689C60C4C0CDB6D7 25BA6A646CF529B3 FD07B3660497D720 8C7F127C171F83FA D1B330F36BCA455A 76CECD5491EBDB94 0052D24333B3CE7B 183B4CD7F432BBCD 9D924C11AE6D5041 1CDBAF207A6BF19A 0D3C04F2A1D563F1 A136BAFBD2C59C0A A7B8D0A43E19B772 BE3E2A28B8FC8E3E 79C8A2DCBA02FF70 33C07D717A9254D6 DF5A2ACA163A69EB 046CE3EC97656119 829BDD5B1956E734 CBE6EE1337CBA9B4 BD3D6EE007D3735E 1BEDF2027A698209 172692151E8A47FD 6D299A82AF6E12C5 A0CF0D1B19BC7D59 E3ACC8B4AC168354 05809704B67152BE B87395438CB24BA3 2CEF80D9B0ADAF17 D540CF0EB71FE918 5E9EFBC7DADAE73E DA852D932F7F82EE D84342A66AF7A1F5 D9C1E2188D50B6FE BD62103F95E8F5B6 A9B056BB2278CD62 4391A3DBDA2584D5 AAC1FB63B826AAA1 1427079AA58F0F82 315DBC719E7017DB 126D59F0FCCC6964 230258548AE0A9A8 E887B6DF62B44895 A8BFCE870B6D945E 41D0F5A7D3699E22 A11E5E4D2D07C957 EA4D824867863DCB 7CADB02A2491DF6C 73E31175EA36FD41 67DDB4AAD2FF355F E8618EE020219D16 8B9A386A1FDEC711 8C18D8C6C801C215 0D4F849925C750A1 2646809ECDBF4E8A 610237B65AED9B77 8A2AAB3658CCEB14 F03FEEBDC9DBDE07 739B40E9983A9C1C E912BCE2D023B654 D2DE4E555D23C477 CBBBDA9317A6CE46 D9EEA5500A43468C ACCA106437E4C3A9 0925143C787CEEA4 4B241653C9BB656F 63225554B1648071 99A452B4AC42D30B 92BB5D161C446A0A A72B9FA797B3A8D9 522F80E3F72F3898 1100E77FF2852100 AE184B783AFB5C62 173FCFDCA8E26E2D CC50F45B705DA117 6F8E436056D1F13A F5363B453101D058 5371405B20145598 E367E8DD8919BDFF 2F21082EFB39E215 86AEE94B874E0F7E F13BE425BB00B87B CB49D9EC058BE6A2 0C9C1F068E316D7E F1627CAECA8391FA 889DC4C3D3F27851 AA5F0EE153EC8284 4206C2D5B71C667F D3A97C42C60DD32D 1033A984B4266029
  • Read the ciphertext. Strip whitespace: 3,792 hex characters = 1,896 bytes = 237 8-byte 3DES blocks.
  • Derive the key. Password = A858DE45F56D9BC9201210072105 (name+title). Key = MD5(password) = f5d961c8d1928c58a03550266a5684ec, used as a two-key 3DES key.
  • Decrypt. 3DES-EDE2 in ECB mode, then strip the PKCS7 padding. The plaintext is 59 GUIDs as hex (shown below).

Decrypted: GUID list

  1 1a3f5d01-a657-8283-b81c-42117a26576f
  2 a6499318-60e7-39f8-b058-616070f56188
  3 80883e87-1980-7072-9bab-8eff2d5c07de
  4 ba36d979-0216-24c2-997e-28f6e5c961d6
  5 efd63b29-f0a1-100a-bc7e-1823fa63ba47
  6 4e2c1bf2-9352-0a4f-91d8-9f7b4430ef30
  7 64bb729e-f888-2208-9af2-f38956a020ba
  8 c7cd82b0-0c8e-60b9-a62a-b3c6a97060e9
  9 8d387f79-b131-8f7d-8c55-730a3f473b85
 10 c9096734-f659-7de3-9342-8f76814ff137
 11 0afb7a63-c580-2c1c-a422-e4ada8617cfd
 12 47ddf82f-90b5-68d5-8a43-477eb7113095
 13 e2516c66-b6b1-4bb2-a3ff-e6e3031bf47b
 14 587e2935-9e51-29cd-808a-c9aa72b22e25
 15 9741cf11-9e80-1573-93d1-c82f335da32a
 16 aa689f70-458b-1d52-8274-c82ebea7672d
 17 d9634ba2-3eaa-0d29-8cbe-50dd38e013ef
 18 af728315-4483-2b30-83f0-91b3e10d4695
 19 c1d310a1-e8e4-6d7c-9321-cd3e2f7e764a
 20 3a01fd69-c670-394d-b717-e687b386f35e
 21 1fdeafde-5900-40a4-afe9-49feb846c318
 22 d790abf7-2144-4160-b78e-1a05b40708d6
 23 a968df57-9597-3a40-867e-57bfccdd41c5
 24 942e83fd-5c68-0fa2-a3e8-ceab3119f3c7
 25 387e4495-0c91-8341-a3e5-856240b31539
 26 41d124f9-4567-1002-ba04-670740eb888a
 27 e0fedc9f-a866-7415-a081-8dd39d3905f2
 28 bd5af9cd-f892-87d8-b675-85feedd91eae
 29 1b7ff684-22cc-8832-88e7-2d7326858bfe
 30 103ca198-d5cc-780c-bb34-d23ab9e5f195
 31 e95c8a91-ad19-7354-bcb9-aace62893294
 32 7ab7882c-d875-4ad1-9237-c68cf0fa0ac5
 33 8318ba2b-d709-059a-b874-04fe19d6182d
 34 4eca16de-1dcb-5e0e-b0f1-8e81dcbe214c
 35 8a5c1977-5cc1-5646-85ee-6fc3fe05eae0
 36 580f5958-a172-70e5-a7a0-6c02d1472f43
 37 a86336d8-d915-003d-bfe9-5295c6af2cad
 38 ff7c7cee-3640-1c97-8ea6-dc3dfcaad077
 39 3c52d7bf-a45b-1b33-bca4-d38f7f4f8e3d
 40 8b833f57-861b-54f4-a517-faa6368568fa
 41 21d8b3ad-4703-2956-b0f0-f8f79caa090f
 42 bc119bb2-7c95-3cec-b0e2-6d35a3eaa584
 43 fb50029a-cb95-4ca1-9cde-629de2756283
 44 75f770af-3bc2-2609-b738-e76c806e41b8
 45 6452ae0a-27d3-8509-a5be-6a3b1c740dfe
 46 f539bf5e-1bf6-5fcc-9404-a62afa368b3b
 47 d9f72f61-a08e-5d3c-be1b-aa92423b17de
 48 f3bbe53e-9c68-3d1b-a06b-f080b31cc157
 49 0e1c53ef-3dd8-2da1-8d26-9c74afe9a861
 50 01377085-095b-7401-8537-d3eb5d0d818b
 51 809ae4c4-35a3-0030-96ce-46cf78cae3ca
 52 70d20439-a345-4353-a0eb-af9757b00951
 53 2cf63591-3822-7473-ab85-995959aca4a7
 54 32a981a1-6dd2-33d5-a001-f96740ce02db
 55 8466b33b-288e-3d84-8010-21216a5b8a01
 56 26d2b2ab-fc1b-3b86-b278-3bb12e7000c5
 57 207309ea-88ea-84f2-a94e-ca23000492f4
 58 c2017ed7-3e29-627f-adf6-14ec0b815f15
 59 d2627b33-ec8f-2572-8061-ef64a5042425

Explanation

  1. Explain the mask digits. The version nibble (13th hex digit) of each GUID, read in order, gives 83721026872642110263443081788774055701152342855327047333862. Exactly this sequence comes out of new Random(186).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. This post is draw 411 of Run 35 (seed 854,622,578): new Random(854622578), Next(8,64) per post. The RNG predicts N = 59; the post has N = 59 ✓. The seed is the machine's uptime in ms when the app started (boot 2012-09-22 10:16–10:36).
  3. Conclusion. Filler. The content is fully explained by the two RNGs.

Related

Findings: Mask digit · Count RNG & runs