201302250608 196qve

explained decrypted filler

seed 257

Metadata

Post ID: 196qve
Title: 201302250608 → 2013-02-25 06:08 on A858's clock
Posted (UTC): 2013-02-25 11:08:59
Timezone: UTC−5 · title 06:08 against posted 11:08 UTC
Author: [deleted]
Account: A858DE45F56D9BC9 main account
Subreddit: r/A858DE45F56D9BC9 the main subreddit
Category: F3 filler: 3DES(name/title) → GUID list, seed known
Size: 3,856 hex characters · 1,928 bytes
Cipher: 3DES-EDE2 (two-key Triple DES), ECB, PKCS7
Key: MD5(A858DE45F56D9BC9201302250608) = 4e818f4a15cc7413d6353b1bc2b8bd64 (name+title)
GUIDs: 60
Filler GUID seed: new Random(257).Next(9) ✓ verified
Run: Run 42 (seed 983,934,859) (seed)
Draw: 14 · predicted N = 60 ✓
Machine boot: 2013-02-13 10:26–11:32 (seed = uptime at app start)
Sources: community-archive, arctic-shift · body from community-archive
Links: Reddit · Arctic Shift · JSON
Score · comments: 5 · 1
Tags: automated (decryptable)2013Encrypted masked GUID listkey: name+titlerun: seed

From the post to its content

As posted (encrypted)

DE42F96D6EA085A8 598DC2DFF229707B 2A2DA4A05E15A207 312DB8E7C25977AE B94B2FD0F466B90F 123AE8A202DFF576 0BD22408F8F01880 CE80CAA35D21B69A 23E3A51A6761D8D4 F8F84A77AD780FBC A67D9B6F32FBC366 C03F063D32F62795 584785E06845EC94 9D7D5667A159F0F6 2CF753FADEBE52EC 1C0D506F014E9944 221D289C9361273A F676603A95DC6849 8363A47D1BDDF241 E8B7B7E95D0F7A01 A5FB3EF4E1F6D9B6 2A81B136A6AB4D4A 91221482379999F1 6A0CD95E586F5935 F681C1A69423F54C 7977C26EE7D8D37A 1BD3E4283AA673A2 488136953D15B1A8 3F738B1157DECBE7 D2E7A63B80556740 44A22357DF29D9FA 34C00D7249C572EA 8AC959854CCB075B F26CB927E03713D8 959BD00656F15926 A7D6EE490954ED9F CF7D0DBBE7C12355 45460B4BCC15FD22 4F4F94614309DDCD 6216DD52819ACC31 F91BA207299DFAE8 A0373E23A458828B C72625BAED227222 1007CD4F08F74799 584067FD71E01879 4EA885BBFE73E6AD 4A8B66F22EDE5DE8 F5B48429E7D06923 CE7C3112280A7B68 DC8A3F6B6F63FDB7 2A27FC95E79BB541 D593770604F25029 DD6D8BDAA62B916B EE1EA8F8DCA531C0 C5EDE8F90E2A2133 C22DA5FF8F3788B8 368965AF4BDE250E C2DF0AEBB75F2A43 D09DA66C5AB003B5 787779AF2CA687AB 10FC348379D28F1F 28D331F9A6F57902 0F495A1C41CEA4A3 C7088FE0B1381231 AA59A389F3AE295E 670D4F1F9B8C80CB 2D581BEABFFD7828 8A67ECBA01ED20C5 62D251736D0426D1 4ACBF95ED99EE2D4 9B2DAFF0D7D09220 AFC3BF6BFF8544EE 74428F4A3A92B797 ECF5EA04AC54CDDB CC54DB536427B3D3 E602992AEC71973F 59CD82353F3F01C8 F42C43C8351E2834 F784DADBE72EB908 35D8C54E5C9D7C71 C62AD4B07F210E20 C5AC3B6191CE3C5B 3B961699E6D2ACD6 82F66AFD0C5DC9DC 1AD44EAB010861E9 0902BBDBA428DA13 75DCAC38BE1F1659 048C21EA5399C7B0 81F532AA330905CE D44B259B69A6CC13 67630AC599E17398 34FB4C48F7BC92F3 D80DDD5A6182746D CDBE961922F1CC1F FF79436FFE85DFEC 56F1E5FB803017E2 52200D87D4C3A2BD 00AAC2FC64357863 7A3446C201744ABC 760459020C23E784 302C671BC0F3AFC0 6668B07B1CE90D03 64CD74695984B481 15390177F243F89C 59901812512CEA56 F9B77BD3FB025581 D0B9EFAB6DC944C8 408CA68BF591F7AB FDBEB52CD9955E37 131F964FA4128862 9C3A63DBE77171B1 E6C0A8DDE9143E56 49B4CB29CE476806 A842F05B1802AAEF A7581F3188A50EEC 3669205824A64D21 C6E3A36259DD0880 4BACFFAD0EAC1E8C 7C929C3773B6B224 2DD274A5C93F44F3 4A219BB5DDF9B363 DCC91C16500B7B2E 34CDEB78EAF2B455 3E57769A00CFF147 B1B4AC4C16649D92 71744F9AA0AD508A AAB2C5ED5E4B1744 C255D04903E3B625 AE11722B2C3D8913 D589E84A94DA9F53 3F4D0BED69333379 EB7D2AA80574B27C CEECFF508F1C44F6 36CD1A1757DF610C A3D7F31CF526353F 955EE42DE43F163A C0FFB06A1E1E3F35 722C4A001071D3E4 9190DF5550984B7C 440D1B97E3EABC00 DC7BB11C1AF4D33E 830C4970518B484C 6FCFF72876E59737 DD41B4773E723126 A10801DC16B02189 F9C209CB92547623 5B89EB74E8ED3756 D12DAFB774956DB9 2EDEC1570B067C31 891B1A81A425D438 62F1A98E1200772E 2B5BE34D1FD2EC07 60F9E4681C1F8124 97428A434ADE9C1B 56CD23F7016CD0F4 6CFB21AC61E85C88 05205D8412053182 77A214D3DC6C6BA5 62273C14EB3DEFA2 BCE81AB6EE05CB42 580F4C355B013379 86452B681213D644 EB868AD6948E7C78 7B500BA22F3A17D5 1ACDFB64AFD6A890 BDEB37AEEB05A326 179EC981CE6076C0 5D2E9B269DCF234E 770CE2A42D4E6C73 BF31A15B402BCE57 8F3C14209869D737 5BB1BA820B49E9DA 939D51F2A2F691CD 072936EFD3E49CBA C41001FC4EFC3D59 81CFE66CC240462C 1D4259EB288137C9 39913F1D2A0CC01F 275FB693261E6B9D A9AD3F41989AA65E 20AA87EC50A49B07 59871FB93A384D4A E8853BA971B88687 5548DA1A3C51893F B16D95B5106DA543 9393C56147BF4540 202572B2A3CEC45C 91E8B1E042DD26CE 3F87B78E41517301 D31C3359B1CEBAC2 DEE3016DDCB85B2A 7A2D99DB1715F00D EAEA3B606FCF5221 5E7A511679A3288F DD3D27C6ED77E9EC 66617A951D7A52A1 62B4A51851C7727C 1393A4D7770A5DBE CFA82F8B8D03D7DF 91075B9B35119752 1D19901AD368BEBA 730BB2DA8C95DB2F 2044581F58652DB9 4C67663DFBE20685 BF7A540E68E0B196 B97680DB33DF8931 DC57BA2A9FF509A7 DABA34924F00AE51 D66406EEBB4C6F3C AC43544F35EA1CE5 E999833D6CFAF041 0198DEA01BD4ACD4 B7A7060A80E31AE3 5C9B6D596FE632B6 7052477A59ED7F8A 5513B0CEBB85DF08 2FEF8D93C1F83EF5 A987C9AA08EF3ECB A2CA365F68E47C9F 640B0D8167C1DB05 F32F690B4EFEA075 665255A855627C1F 2614880734FEBDA0 2F87C2800BA78580 7BDCF573A8C85E8A F3FA32AC57ED8946 7B4DCC965A501A9A 5638BE473B7FF7F5 8C6A40221EA5CF83 BF264C788E225794 92F3EC39EC537861 03CB261DDCC86F42 568EEC80B341B66C 9A67A630C4A2D99C C9005B14455E67E7 6EDB88C94D561689 C19538E664F2A3DA F7B9BC622FACFAB4 7CB6C64032EF5468 0A9D43F8B51B8CE2 8F825548BD2264C5

Read the ciphertext. Strip whitespace: 3,856 hex characters = 1,928 bytes = 241 8-byte 3DES blocks.
Derive the key. Password = A858DE45F56D9BC9201302250608 (name+title). Key = MD5(password) = 4e818f4a15cc7413d6353b1bc2b8bd64, used as a two-key 3DES key.
Decrypt. 3DES-EDE2 in ECB mode, then strip the PKCS7 padding. The plaintext is 60 GUIDs as hex (shown below).

Decrypted: GUID list

  1 8a261103-8e38-862b-bb12-56b497725928
  2 3c001f55-ef3b-2343-8aaf-30c8a44788f6
  3 408a6861-a437-3dd1-9abf-0f601e3990b4
  4 ab855b27-7c8f-363b-8398-66791415c465
  5 dab50ab6-9f37-2bf6-91b7-f1b32ac41514
  6 d5ad5ae8-f633-1742-81ff-3b88a07165bb
  7 352458bf-6929-075b-b534-5141954dbc5d
  8 e9342de5-323a-3725-9464-1c9f60e86179
  9 a76a00cf-6fbd-6d7a-abb0-1489740c347a
 10 3f7c73d0-357f-0acd-ba3d-298d984234e5
 11 688cc7d7-0d24-5f1c-b9d9-e635ea86fab4
 12 610d8b4b-c2d8-0798-973c-a018cfdfdc88
 13 e532beda-886c-2731-8d96-484164474e91
 14 c179553d-d757-1627-ad1f-4599ce8c7e53
 15 7063f2ae-1662-71fc-bba5-50dd5b91ead0
 16 54b8a6b4-e94d-4bea-80d5-f775337dfb92
 17 885623ac-fabd-8192-902e-61aa9ed2d44c
 18 bbd932c2-23b6-371f-bbf7-9b6bad0eb585
 19 1ad04970-2183-5f08-9a1f-2181ef8c7e66
 20 954cf9bf-b0bd-7cc7-bed0-c41e83c3bfb8
 21 30887956-a272-8083-bf4e-143166e610d4
 22 1ed4e0f4-4a4c-8593-a09c-500e5da68b72
 23 a327e441-0807-357e-a8fb-550c31ee16e2
 24 e6bc5648-6d21-72c2-8e35-59ef9ff4cca7
 25 1fb3b4e4-49c0-76e4-ac94-1d0e75046a25
 26 66a8cd41-15ec-77f2-89f5-369078fb9351
 27 8855f695-5925-8e35-8b44-eb183e706b6c
 28 3aa56c74-01b4-8468-88f8-c98cb8fc28cc
 29 6139d986-117a-491c-b199-480eb57da9bd
 30 a803646a-3b72-0398-b765-d284c6ce2c2a
 31 df932e70-8df6-011f-823e-445ed1041197
 32 4264410c-9452-14d1-a97e-78599614d5d2
 33 9283aaca-74e9-5ab4-8bb0-6a6215be274c
 34 23444da9-608f-35cd-9262-41fa6278e419
 35 4654daea-c595-3a6d-9776-7b3a7247bedb
 36 a2148f52-4dbc-8f9c-a7cf-2566a5b9df5c
 37 aa3eae6f-e688-8602-b974-381e09c576ad
 38 6719b7f4-b909-40aa-9eb1-f99bbbf2217e
 39 7c64db69-ba21-3de9-a527-b36576656a30
 40 8d37056b-61f4-7c9d-a2ba-3aa5200471c7
 41 9100d380-0bc8-7c94-80e8-778328603138
 42 97dd2932-67e3-1fcd-ae48-182d6a191d09
 43 b61c8881-86d3-14fa-9291-ecf6b7e924ec
 44 3d1dddaf-ea23-36c0-bd9c-849775031fdc
 45 c821da04-b3b4-327d-b1d2-bbf6a23213e5
 46 55b946b0-a721-1920-98ed-a4e445e1e066
 47 437ad274-a585-61f7-b9d7-18cfd41d456e
 48 edb720d4-2e6e-402e-a3ae-2ef8778d6271
 49 8fbace2a-e8a1-27fa-a502-c081670e5837
 50 b5602e4f-8455-1a11-90f4-e491a793156b
 51 aed56904-aa76-2267-bfb6-aa245d4963a0
 52 b5e49e92-c07d-4652-b70e-0080a1d3aa8f
 53 bb31d964-e80e-371f-8309-aa4b85cb724e
 54 1c4f05bd-4d5b-7d57-a286-b7015e8cfdeb
 55 a839ec67-ead6-5a11-9008-be34dedba75b
 56 25137f0c-a3b7-06c3-b424-222ec0eef43c
 57 f955960b-42fd-7f84-a63d-964cf8e360c6
 58 91f47ebe-66c2-50c3-b90a-b141ae78f07c
 59 a6bb3f7d-829f-4526-80d2-c3a153031c77
 60 bdee8df4-2442-3313-8391-8388982f834e

Explanation

Explain the mask digits. The version nibble (13th hex digit) of each GUID, read in order, gives 823321036050217483578837778840015338843771133164212437507543. Exactly this sequence comes out of new Random(257).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 14 of Run 42 (seed 983,934,859): new Random(983934859), 4·Next(8,16) per post. The RNG predicts N = 60; the post has N = 60 ✓. The seed is the machine's uptime in ms when the app started (boot 2013-02-13 10:26–11:32).
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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