Please enable JavaScript to use CodeHS

WI 6-8: NI2.d.2.m

CodeHS Lessons

Encode and decode text- based messages using basic algorithms (e.g., shift cipher, substitution cipher).

21.4 Basic Crypto Systems: Caesar Cipher
21.5 Basic Crypto Systems: Cracking Caesar
21.6 Basic Crypto Systems: Vigenere Cipher
5.3 Basic Crypto Systems: Caesar Cipher
5.4 Basic Crypto Systems: Cracking Caesar
5.5 Basic Crypto Systems: Vigenere Cipher
5.3 Basic Crypto Systems: Caesar Cipher
5.4 Basic Crypto Systems: Cracking Caesar
5.5 Basic Crypto Systems: Vigenere Cipher
5.3 Basic Crypto Systems: Caesar Cipher
5.4 Basic Crypto Systems: Cracking Caesar
5.5 Basic Crypto Systems: Vigenere Cipher
5.3 Basic Crypto Systems: Caesar Cipher
5.4 Basic Crypto Systems: Cracking Caesar
5.5 Basic Crypto Systems: Vigenere Cipher
5.3 Basic Crypto Systems: Caesar Cipher
5.4 Basic Crypto Systems: Cracking Caesar
5.5 Basic Crypto Systems: Vigenere Cipher
5.3 Basic Crypto Systems: Caesar Cipher
5.4 Basic Crypto Systems: Cracking Caesar
5.5 Basic Crypto Systems: Vigenere Cipher
5.3 Basic Crypto Systems: Caesar Cipher
5.4 Basic Crypto Systems: Cracking Caesar
5.5 Basic Crypto Systems: Vigenere Cipher
5.3 Basic Crypto Systems: Caesar Cipher
5.4 Basic Crypto Systems: Cracking Caesar
5.5 Basic Crypto Systems: Vigenere Cipher
5.3 Basic Crypto Systems: Caesar Cipher
5.4 Basic Crypto Systems: Cracking Caesar
5.5 Basic Crypto Systems: Vigenere Cipher
5.3 Basic Crypto Systems: Caesar Cipher
5.4 Basic Crypto Systems: Cracking Caesar
5.5 Basic Crypto Systems: Vigenere Cipher
2.3 Basic Crypto Systems: Caesar Cipher
2.4 Basic Crypto Systems: Cracking Caesar
2.5 Basic Crypto Systems: Vigenere Cipher
4.3 Basic Crypto Systems: Caesar Cipher
4.4 Basic Crypto Systems: Cracking Caesar
4.5 Basic Crypto Systems: Vigenere Cipher
8.3 Basic Crypto Systems: Caesar Cipher
8.4 Basic Crypto Systems: Cracking Caesar
8.5 Basic Crypto Systems: Vigenere Cipher
4.3 Basic Crypto Systems: Caesar Cipher
4.4 Basic Crypto Systems: Cracking Caesar
4.5 Basic Crypto Systems: Vigenere Cipher
2.3 Basic Crypto Systems: Caesar Cipher
2.4 Basic Crypto Systems: Cracking Caesar
2.5 Basic Crypto Systems: Vigenere Cipher
5.3 Basic Crypto Systems: Caesar Cipher
5.4 Basic Crypto Systems: Cracking Caesar
5.5 Basic Crypto Systems: Vigenere Cipher