A858DE45F56D9BC9 archive

201112011634 mwub3

solved decrypted manual

'Twas the Night Before Christmas', with look-alike Unicode characters. 3DES-ECB, key MD5(name).

Metadata

Post ID
mwub3
Title
201112011634 → 2011-12-01 16:34 on A858's clock
Posted (UTC)
2011-12-02 00:31:29
Timezone
UTC−8 · title 16:34 against posted 00:31 UTC
Author
[deleted]
Account
A858DE45F56D9BC9 main account
Subreddit
r/A858DE45F56D9BC9 the main subreddit
Category
S solved 3DES → text
Content
Seasonal greetings and ASCII art
Size
2,464 hex characters · 1,232 bytes
Cipher
3DES-EDE2 (two-key Triple DES), ECB, PKCS7
Key
MD5(A858DE45F56D9BC9) = 34a14a42e98ff96095af56604e290cae (name)
Sources
community-archive, arctic-shift · body from community-archive
Links
Reddit · Arctic Shift · JSON
Score · comments
48 · 16
Tags
pre-automation2011Solved special postmanualkey: nameseasonal greetings and ascii art

From the post to its content

As posted (encrypted)

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
  • Decrypt. Key: MD5(name) ECB. 3DES-EDE2, then strip the PKCS7 padding.

Decrypted

ʈwas Ț├┤ә nͥg├┤Ț bәforә C├┤rͥsȚmas, w├┤әn all Ț├┤roµg├┤ Ț├┤ә ├┤oµsә
NoȚ a crәaȚµrә was sȚͥrrͥng, noȚ әvәn a moµsә.
ʈ├┤ә sȚockͥngs wәrә ├┤µng by Ț├┤ә c├┤ͥmnәy wͥȚ├┤ carә,
În ├┤opәs Ț├┤aȚ SȚ Nͥc├┤olas sѾn woµld bә Ț├┤әrә.
ʈ├┤ә c├┤ͥldrәn wәrә nәsȚlәd all snµg ͥn Ț├┤әͥr bәds,
W├┤ͥlә vͥsͥons of sµgar-plµms dancәd ͥn Ț├┤әͥr ├┤әads.
And mamma ͥn ├┤әr ‘kәrc├┤ͥәf, and Î ͥn my cap,
Had jµsȚ sәȚȚlәd oµr braͥns for a long wͥnȚәr’s nap.
W├┤әn oµȚ on Ț├┤ә lawn Ț├┤әrә arosә sµc├┤ a claȚȚәr,
Î sprang from Ț├┤ә bәd Țo sәә w├┤aȚ was Ț├┤ә maȚȚәr.
Away Țo Ț├┤ә wͥndow Î flәw lͥkә a flas├┤,
ʈorә opәn Ț├┤ә s├┤µȚȚәrs and Ț├┤rәw µp Ț├┤ә sas├┤.
ʈ├┤ә mѾn on Ț├┤ә brәasȚ of Ț├┤ә nәw-fallәn snow
Gavә Ț├┤ә lµsȚrә of mͥd-day Țo objәcȚs bәlow.
W├┤әn, w├┤aȚ Țo my wondәrͥng әyәs s├┤oµld appәar,
BµȚ a mͥnͥaȚµrә slәͥg├┤, and әͥg├┤Ț Țͥnny rәͥndәәr.

Explanation

Solution summary

Method
3DES-ECB, key MD5(name)
Result
'Twas the night before Christmas (16 lines), UTF-8 homoglyphs
Explanation
Standard MD5(name) 2-key 3DES-ECB, 2-byte PKCS7 pad; the earlier record (raw name bytes as key) does not decrypt. The wiki's des-ede with password A858DE45F56D9BC9 is the same key (OpenSSL derives MD5 of the password). The homoglyphs carry no hidden bits: the mapping is fixed (every lowercase e, t, h, i, u and every oo, T, I is replaced; none is left in ASCII), so there is no per-position choice. Typo 'tinny reindeer'
Re-checked
3DES MD5(name) -> homoglyph Night Before Christmas