201108022233 j7525
solved decrypted manual
A quotation: 'It is by the goodness of God that in the United States...'. 3DES, key MD5(name).
From the post to its content
As posted (encrypted)
4F335EA1AA 22A2D8CAAC 41626C351C 38D4DB4C02 93419454C4 6A43498700 3E86B44B11 A863D48A06 5DB91CBF79 B529229200 374CD1CE2A C9C78D5712 43895F8536 51B7FA26BD 696CF6E7C5 1557A5ED88 F65D009B1E 6EFEFCE933 DC70B996EE FC629822D9 6D6FCB6F51 3AF7472B4E 968014B557 FEA6C204F6 C75B55DC84 C178D6A053 E751F01222 D441A47BD1 B90AF00D74 7363D871EC B79559ED65 08578B1DE0 A801B03410 EEF95C3EC4 895470F8DD E3FD27D7DF 9E99E37FFE F6A93D3A72 1799FFFF5A 1BE23A15D5
- Decrypt. Key: MD5(name) ECB. 3DES-EDE2, then strip the PKCS7 padding.
Decrypted
It is by the goodness of God that in the United States they have those three unspeakably precious things: freedom of speech, freedom of conscience, and the prudence never to practice either of them.
Explanation
201108022233 — DES-EDE ECB quotation
Status: verified decryption.
This is one of six 2011 posts that use the same recipe (the others: igg5w, j7xpy, j95o6, jb62l, jbnny):
- Decode the body from hexadecimal.
- Use DES-EDE (two-key Triple DES) in ECB mode with the 16-byte key MD5(
A858DE45F56D9BC9). - Remove the PKCS#7 padding.
The SHA-256 of the plaintext, for checking a decryption byte for byte:
caadcf9a86cab784d6dbe6ed8392b66b461cca93f4ca80488b972140624d6b14
The output is the quotation beginning: It is by the goodness of God that in the United States they have those three unspeakably precious things.
Solution summary
- Method
- 3DES-ECB, key MD5(name)
- Result
- prose quotation
- Explanation
- Community-known text