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Decipher Fefe Timestamps
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| """ | |
| https://blog.fefe.de/?ts=bcb518f6 | |
| Timestamp: bcb518f6 | |
| Date: Thu Mar 31 2005 | |
| """ | |
| from datetime import datetime | |
| def defefe(ts): | |
| """ | |
| Decrypt hex-encoded POSIX timestamps. | |
| https://en.wikipedia.org/wiki/XOR_cipher | |
| """ | |
| xor_cipher_key = 0xfefec0de | |
| posix_timestamp = int(ts, 16) ^ xor_cypher_key | |
| return datetime.fromtimestamp(posix_timestamp) | |
| print(defefe("bcb518f6")) # 2005-03-31 12:59:52 |
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