201304122317 1c9144

explained decrypted filler

3DES(name+title) ECB, 60 GUIDs, seed 615

Metadata

Post ID: 1c9144
Title: 201304122317 → 2013-04-12 23:17 on A858's clock
Posted (UTC): 2013-04-13 03:17:59
Timezone: UTC−4 · title 23:17 against posted 03:17 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(A858DE45F56D9BC9201304122317) = 856d2527ffb3c1deb0c14bb81bea577c (name+title)
New here: Missing from the community archive; decrypted here for the first time. (new results)
GUIDs: 60
Filler GUID seed: new Random(615).Next(9) ✓ verified
Run: Run 45 (seed 51,450,859) (seed)
Draw: 7 · predicted N = 60 ✓
Machine boot: 2013-04-10 12:46–16:39 (seed = uptime at app start)
Sources: arctic-shift · body from arctic-shift
Links: Reddit · Arctic Shift · JSON
Score · comments: 0 · 0
Tags: automated (decryptable)2013Encrypted masked GUID listarctic-onlykey: name+titlerun: seed

From the post to its content

As posted (encrypted)

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

Read the ciphertext. Strip whitespace: 3,856 hex characters = 1,928 bytes = 241 8-byte 3DES blocks.
Derive the key. Password = A858DE45F56D9BC9201304122317 (name+title). Key = MD5(password) = 856d2527ffb3c1deb0c14bb81bea577c, 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 cbe6477c-26b7-07e3-9c06-63137737e06f
  2 d7ce1f39-f469-235f-9b33-78bafce488eb
  3 a05dad2c-4512-5f2d-b677-84689bae6c93
  4 ed8ea5a5-05cc-76fe-8031-d265a4ca2fd6
  5 7a78c1f8-afb9-73fe-8d21-6b14acafb9b5
  6 be4b4ce8-ff72-0061-a28b-af10a39ef861
  7 7c164a69-6b23-4753-baa8-499b54f6b768
  8 95dbf14c-3450-80e2-aa09-1ba5cd56c72b
  9 7c464be9-498a-0136-8ac5-12da803f486d
 10 b43de20a-a0dc-033a-8158-8a066aa3101f
 11 e74cce68-0b36-322e-990e-d6593242a6dd
 12 1743c1a4-368a-546b-8423-c2835f8c51c5
 13 5d2f8049-69a1-3b3f-85be-7d1ecc16f688
 14 97bb075d-909c-3135-bc01-6d85dac3155b
 15 09073e8f-d75c-4a7d-a36d-1039fd1cf209
 16 0cf102a5-e7fc-0fa0-b2f3-6669fa2a61f1
 17 75f9fe5c-b91d-3be0-b5ee-6397054cafae
 18 92530366-6fc4-2b7a-8473-b7ec6c1d29ca
 19 639d7b81-76c8-273a-8430-bc64fdd369d8
 20 0928cf17-4ccc-4734-9ccd-ef0f5aa71217
 21 9a3228f3-4434-4e42-8275-167cd3691d73
 22 f04ee809-5eb2-6cdd-bf14-cf2d7411a91d
 23 80199b46-2d2b-8c54-964a-d57f64a5ea9c
 24 20a54f1b-0aa4-7632-85fc-a3ccfca9a3ac
 25 215d3d8c-5a52-8b46-afab-e414ce2e7003
 26 f2fe893a-96b3-0ff3-8948-54cc2d75d7c5
 27 62c12864-ca6f-6d7d-9dec-a9cd796bd2fc
 28 e8b57724-e131-673d-b9b2-9a1b677023b0
 29 4c8b131a-8eaf-373c-8fa3-26b43ee5d624
 30 1d11f7b3-4d59-3a04-ad4d-e1bf218571bc
 31 6c723d60-a049-275c-94b8-efbf0fa92593
 32 99573a0e-5073-43bf-8939-dc4bf7695a9a
 33 c9b5e7d1-dfef-5148-b5bf-41f8b45a9afb
 34 eabb86ed-1c32-3bd3-9f8f-d1f8d32e1957
 35 904ad875-ab94-3ec1-a187-0de64a8c6789
 36 de970857-bd87-347a-949c-c53e18fd11cf
 37 8225b0fe-2140-4911-83a1-e3855862825b
 38 443e56c6-8a54-470a-8595-af0aaa8f6c0d
 39 6b27eb6f-88ae-5845-8d50-eecf22eef2a0
 40 33647367-99c1-194e-9232-8a105ee786c8
 41 e45903e6-fe60-5fa4-95f0-06a0269355fa
 42 edb0a8c1-7885-5f3a-bbb5-89e8de66c2c4
 43 7c4a9f33-4fcf-8ca0-9d53-a4908d1985d4
 44 2f5bdefa-02a9-7eeb-bd17-113fd6655a0a
 45 a6b87958-0271-1082-8e18-ab0ef5a07fd6
 46 a7565f03-2f6c-3fb0-9746-b28737cc7fb0
 47 1f1646bc-8ff3-53ee-bb93-be88c184959e
 48 0b61a0fa-da44-0e98-b7cd-773bb765ef48
 49 0e58cb79-19d8-29d6-983e-8a895ff967fe
 50 0c94d588-cdc2-4a79-aabe-4013d2c4946f
 51 fed37e17-ea02-7e1e-8d96-52e4a0306893
 52 967f4634-c954-8b1c-b3c7-17da72d93450
 53 84de502f-80de-5e51-b20b-df298db28482
 54 94a5f1d7-6a98-7c7c-a0c2-4287009138ab
 55 b3d44a1c-77c5-333d-905e-cde9dcefaa57
 56 480092ee-1b4a-27c6-9ec5-2cbb988fe850
 57 8991e603-4b4a-3a24-8cdc-513c6a43090a
 58 21c0628a-631d-6ed4-bdd3-07fcaee6e26d
 59 bb7b9069-6303-7348-8d27-790d435464fd
 60 a13c864f-7992-7581-bff8-f0ea0d314f57

Explanation

Explain the mask digits. The version nibble (13th hex digit) of each GUID, read in order, gives 025770480035334032244687806633245333445155871350247857323677. Exactly this sequence comes out of new Random(615).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 7 of Run 45 (seed 51,450,859): new Random(51450859), 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 2013-04-10 12:46–16:39).
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