A858DE45F56D9BC9 archive

201511180714 3tac00

inferred encrypted filler

N=17

Metadata

Post ID
3tac00
Title
201511180714 → 2015-11-18 07:14 on A858's clock
Posted (UTC)
2015-11-18 12:22:18
Timezone
UTC−5 · title 07:14 against posted 12:22 UTC
Author
A858DE45F56D9BC9
Account
A858DE45F56D9BC9 main account
Subreddit
r/A858DE45F56D9BC9 the main subreddit
Category
F5 filler by length law: 64N+16
Size
1,104 hex characters · 552 bytes
N from length
17 (64·N + 16 = 1104)
Run
Run 70 (seed 6,038,486) (seed)
Draw
32 · predicted N = 17 ✓
Machine boot
2015-11-17 21:21–21:46 (seed = uptime at app start)
Sources
arctic-shift · body from arctic-shift
Links
Reddit · Arctic Shift · JSON
Score · comments
1 · 0
Tags
post-cutover2015Undecrypted filler (fits the length law)arctic-onlyrun: seed

From the post to its content

As posted (encrypted)

d313a3fcfad3676ca140f4dec59d0afc 3bd46d87f2bee4295a8962a1aa75817b 84130b180623ff6dbd3bce4a1f795dfe 69a1ef3ae6a4b3900f87871cfffee426 5fba84a0c9866003ffc74964b728fe98 1af6a31b07d04d3a27fb7e29e2479590 718ac10a4e72789bce39640f96a1942f afbfa3b0d9d5eedba3442923ab916a70 bac97be3d6efdd8e98a00b08326a2279 47263820571d05e228935bbc015ea8f8 813104f80c432b1c13bfe953f5487e4f 01fdf99bbd2e6f277f6cd3160b01c579 74a452f6c1bbb46830b4282e26bfc45a 9dd30de5602eb079ef5146be9326c7f8 b2ffd1def3b4e8814de98a56dd8b97db db7393cae1c407d6f2565851d1e8d148 4081cebda2438e863cd0f9cbe5909038 fd07158c3604b140208d8020f98e9a02 4a0840c815f088422f08d1e1cef3aa06 c04ceddb102421dcb715896175f5c5cb f622918271a37e56b6a92c9329c96967 909e7fca060ba3f990777f15b06b8458 b6b15906f53db65608765bd8c8a6004f a193f8578e0f943282bdb9dffc73fc9c 11d53dbffe0642700e825b4672e3b674 8fbfe0f7440c4572bc0408df049cf0b3 bf3daf3f4e213411afe81a5fcd34db54 17dd6aa08159fb7c162171c32c5d457f 3c93d5f95cc7e8adfb15f9bc37b3bf41 f258549438e061f1b87af7d96ccdb0cf b93dab3e976acccba63f73a0df16bf26 c10ad684d02b2f9d597cbb1c035279d8 9340f7d0a138a994fbbe6ec46042799c 8363ac6dc442cfc2693460b2c6b2cfeb d17f75cbd22ced4d 

Explanation

  1. Read the length. 1,104 hex characters = 64 × 17 + 16, i.e. N = 17 GUIDs encrypted with 3DES plus one 8-byte padding block. Every post-cutover filler post has exactly this shape.
  2. Key unknown. The post-cutover key (2013-10-16 onwards) has not been found, so the GUIDs themselves cannot be read. Everything else about the post is accounted for.
  3. Explain the count. This post is draw 32 of Run 70 (seed 6,038,486): new Random(6038486), Next(10,40) per post. The RNG predicts N = 17; the post has N = 17 ✓. The seed is the machine's uptime in ms when the app started (boot 2015-11-17 21:21–21:46).
  4. Conclusion. Filler. Structure and count are explained; the GUIDs are presumed filler like every decrypted post before the cutover.