File size: 1,798 Bytes
b4f6a98 346ef1a b4f6a98 346ef1a b4f6a98 346ef1a b4f6a98 346ef1a b4f6a98 346ef1a b4f6a98 346ef1a b4f6a98 346ef1a b4f6a98 346ef1a b4f6a98 346ef1a | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 | # Sample Ciphertexts
Use these in **Detect Mode** or **Compare Mode**. Expected answers are at the bottom — try to call them yourself first using **Explain Mode**.
## 1 — Caesar / ROT
```text
WKLV LV D FODVVLFDO FDHVDU FLSKHU GHPR IRU FLSKHU GHWHFWLYH DL
```
## 2 — Atbash
```text
GSV XLWV RH ZOO BLFIH GSV VEVIVHG RMP
```
## 3 — Vigenère (short, deliberately hard)
```text
LXFOPVEFRNHR
```
## 4 — Rail Fence
```text
TEITELHDVLSNHDTISEIIEA
```
## 5 — Columnar transposition
```text
EOACT IPTRH IIEEN HSGES SOSCR REMEN AERTC OEFNT TYIHE THCMC
```
## 6 — Plaintext
```text
THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY
```
## 7 — Affine
```text
IZZWVU NWHJUS NSV BUKUSO YUSL NWHJUSE
```
## 8 — Monoalphabetic substitution
```text
GUF KSCQNQA HQFDFQXFD ZRMVKFTBF YMQ GUF EMSSWRSGA
```
---
## Expected answers
| # | Cipher | Notes |
|---|-------------------------------|----------------------------------------------------|
| 1 | Caesar shift 3 | Brute-forces in 26 tries. Chi-squared confirms. |
| 2 | Atbash | Self-inverse — a single decode test wins. |
| 3 | Vigenère, key `LEMON` | Sample is too short for high confidence — that's the lesson. |
| 4 | Rail-fence (3 rails) | English letters, weak bigrams: classic transposition signature. |
| 5 | Columnar transposition | Same family as #4; bigram support stays low. |
| 6 | Plaintext | Should classify confidently as `plaintext`. |
| 7 | Affine, *a*=5, *b*=8 | 312-key brute force; the affine candidate table surfaces it. |
| 8 | Monoalphabetic substitution | English-like IoC but disrupted bigrams. |
|