| Index of Coincidence | Frequency | |
| Transposition | 6.68% | Same |
| Caesar | 6.66% | Will match if shifted 3 |
| Affine | 6.66% | Same frequencies present but in random order |
| Playfair | -4.72% | Flat Distribution |
| Vigenere | -4.38% | Flat Distribution |
NOTE: The results are dependent on a text of ~2000 characters and a keyword of at least 4 letters.
