Cryptography Reference
In-Depth Information
Figure 6.8 - First iteration of the line - column decoding process.
The horizontal definitions allow us to begin correcting the lines in the grid
(Figure 6.8(a)):
I. There must be more than one wrong letter.
II. THETA is a Greek letter.
III. We can replace the L with a C, getting CANES (sticks).
IV. There must be more than one wrong letter.
V. There must be more than one wrong letter
After decoding this line, two words are correct or have been corrected, and
three are still to be found. Using the vertical definitions, we can now decode the
columns (Figure 6.8(b)):
1. There must be more than one wrong letter. No correction is possible.
2. Replacing the I with an E, we get SHAPE (representation).
3. A TENON is a projection (of wood).
4. Replacing the T with a G, we get AGENT (force).
5. A LASSO is a kind of rope.
After decoding the columns, there are still some unknown words and we have to
perform a second iteration of the line - column decoding process (Figure 6.9).
Line decoding leads to the following result (Figure 6.9(a)):
I. Replacing the S with an I, we get VITAL (animate).
