Classical-Ciphers

Monoalphabetic Substitution Ciphers

• Shift (Caesar) Cipher (Shift_Cipher.java)

• Substitution Cipher (Substitution_Cipher.java)

• Affine Cipher (Affine_Cipher.java)

Polyalphabetic Substitution Ciphers

• Vigenere Cipher (Vigenere_Cipher.java)

• Hill Cipher (Hill_Cipher.java)

Transposition Ciphers

• Permutation Cipher (Permutation_Cipher.java)

• Scytale Cipher (Scytale_Cipher.java)

Stream Ciphers

• Autokey Cipher (Autokey_Cipher.java)

• Linear Feedback Shift Register (LFSR) Cipher (LFSR_Cipher.java)

Cryptanalysis Tools

• Frequency Analysis (Frequency_Analysis.java)

• Kasiski Test (Kasiski_Test.java)

• Index of Coincidence (Index_of_Coincidence.java)