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Welcome to Lecture 71 of the course "Programming in Python" by Prof. Sudarshan Iyengar. Full Course: https://study.iitm.ac.in/ds/course_pages/BSCS1002.html Video Overview In this lecture we implement the Caesar cipher to encrypt a text file using Python. The Caesar cipher works by shifting each letter in the text by a fixed number of positions in this case three. We write a Python script that opens a file named Sherlock.txt encrypts its contents and saves the result to a new file encrypted_Sherlock.txt. This lecture demonstrates file handling along with the basics of cryptography. As a challenge you are also given homework to attempt decryption of the encrypted file. About IIT Madras' online Bachelor of Science programme IIT Madras offers four year BS programmes that aim to provide quality education to all irrespective of age educational background or location. The BS programme has multiple levels which provide flexibility to students to exit at any of these levels. Depending on the courses completed and credits earned the learner can receive a Foundation Certificate from IITM CODE (Centre for Outreach and Digital Education), Diploma(s) from IIT Madras or BSc/BS Degrees from IIT Madras. For more details Visit: https://www.iitm.ac.in/academics/study-at-iitm/non-campus-bs-programmes #CaesarCipher #Python #Encryption #Cryptography #FileHandling #PythonTutorial #Coding #Security #BeginnerCoding #ArthurConanDoyle #SherlockHolmes #TextEncryption #DataSecurity #LearnPython #CodeWithPython #PythonCourse #PythonProjects
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