cryptohard
PURPLE
taipanbyte
Task: Decrypt a ciphertext in 5-letter military groups with no key provided. Solution: Identify the PURPLE cipher machine from the task name and low Index of Coincidence, use the purple Python library with default/zero machine settings to decrypt, revealing the flag in the plaintext message.
$ ls tags/ techniques/
index_of_coincidencekey_from_tasknamepurple_machine_decryptioncipher_identification
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