Vigenère Şifresi Nedir?
Ücretsiz çevrimiçi Vigenère şifresi aracı. Vigenère şifre tablosu kullanarak metni şifreleyin veya şifresini çözün.
Neden Vigenère Şifresi Kullanmalısınız?
- Keyword-based polyalphabetic encryption and decryption
- Autokey mode for stronger encryption
- Character-by-character key visualization
- Index of Coincidence (IC) statistical analysis
- Random secure key generator using crypto.getRandomValues
- Key space up to 26^n for an n-letter keyword
Vigenère Şifresi Nasıl Kullanılır — Adım Adım
1
keyword (letters only, case-insensitive) Girin.
2
plaintext or ciphertext Yazın.
3
Encrypt or Decrypt mode Seçin.
4
Autokey mode -e use plaintext as key extension Değiştirin.
5
Enable Key Visualization to see per-character key mapping.
6
Check the IC value to analyze the output statistically.
Vigenère Şifresi Kimler İçin En Uygun?
- students learning cryptography
- CTF players
- puzzle solvers
- cryptography enthusiasts
Vigenère Şifresi — Sıkça Sorulan Sorular
the advantage of Vigenère over Caesar nedir?
Vigenère uses a keyword to apply different shifts to each letter, making it a polyalphabetic cipher. This resists simple frequency analysis because the same plaintext letter can encrypt to different ciphertext letters depending on position.
autokey mode nedir?
Autokey mode uses the plaintext itself to extend the keyword. After the keyword is exhausted, the plaintext characters are used as the key for subsequent positions. This prevents the repeating pattern that makes standard Vigenère vulnerable to Kasiski examination.
How is the Index of Coincidence interpreted?
IC measures how likely two randomly selected letters are identical. For English text, IC ≈ 0.0667. For random text, IC ≈ 0.0385. A Vigenère-encrypted text with a short keyword will have IC closer to 0.0385, while a value above 0.045 suggests the text may be monoalphabetic or the keyword is very long.
Vigenère Şifresi Kullanmaya Hazır mısınız?
Ücretsiz çevrimiçi araç — tarayıcınızda çalışır, kayıt gerekmez. Hemen kullanmaya başlayın.
Şimdi Dene