Double Transposition

A double transposition, also known as a double columnar transposition, was used by the U.S. Army in World War I, and it is very similar to the German's Übchi code. It is just a columnar transposition followed by another columnar transposition. If you like, this can enter in the third part of Kryptos and decode it for you. I've made the three offset letters (y, a, r) lowercase as well as the first letter of the decoded message to help show you where they are.

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The resulting columnar key:

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The resulting columnar key:

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This is your encoded or decoded text:

Some so-called vampire bats do drink blood, but they are not from Transylvania. they are from Central and South America and they feed on cattle, horses, and birds. Tyler Akins! <>
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