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IT & Software

Cryptography and Hashing Fundamentals in Python and Java

Private and Public Key Cryptosystems, DES, AES, Cryptoanalysis, RSA, Elliptic Curve Cryptography and Hashing

50.000 VND

99 VND

Đầy Đủ Bài Giảng

Học Online Tiện Lợi

Kích Hoạt Nhanh 2-5 Phút

Thanh toán tự động

Được phép tải xuống

Mô tả

In this course you will learn about cryptography and hashing in Python and Java as well. You will understand most of the private key (symmetric) and pubic key (asymmetric) cryptosystems on a step by step basis. You can learn about the theory as well as the implementation for every cryptographic algorithm - and how to crack these systems (so what are the weaknesses).

Chapter 1 - Cryptography Fundamentals

what is the aim of cryptography?
private key and public key cryptosystems

Chapter 2 - Caesar Cipher

Caesar cipher theory and implementation
how to crack Caesar cipher
frequency analysis and language detection

Chapter 3 - Vigenere Cipher

Vigenere cipher theory and implementation
how to crack Vigenere cipher with Kasiski-algorithm

Chapter 4 - One Time Pad (Vernam Cipher)

random and pseudo-random numbers
the XOR logical operator
one time pad theory and implementation
why is it impossible to crack Vernam cipher?
Shannon's secrecy

Chapter 5 - Data Encryption Standard (DES)

data encryption standard (DES) theory and implementation
cryptoanalysis techniques
linear cryptoanalysis and differential cryptoanalysis

Chapter 6 - Advanced Encryption Standard (AES)

advanced encryption standard (AES) theory and implementation
Shannon's confusion and diffusion

Chapter 7 - Asymmetric Cryptosystems

problems with private key cryptosystems
random numbers and prime numbers in cryptography

Chapter 8 - Modular Arithmetic

modular arithmetic fundamentals
finding prime numbers - naive approach and advanced algorithms
integer factorization problem
discrete logarithm problem

Chapter 9 - Diffie-Hellman Key Exchange

Diffie-Hellman key exchange algorithm theory and implementation
prime numbers and primitive roots
man-in-the-middle attack

Chapter 10 - RSA Algorithm

RSA algorithm theory and implementation
the problem of factorization

Chapter 11 - Advanced Modular Arithmetic

Euclidean and the greatest common divisor (GCD) problem
extended Euclidean algorithm (EGCD)
modular inverse problem

Chapter 12 - Elliptic Curve Cryptography (ECC)

elliptic curve cryptography theory and implementation
why does Bitcoin use elliptic curve cryptography?

Chapter 13 - Cryptographic Hashing

what is hashing in cryptography?
properties of hashing
birthday paradox
MD5 and SHA algorithms

Thanks for joining my course, let's get started!

Bạn sẽ học được gì

Understand the basics of private key encryption systems

Caesar cipher and Vigenere cipher

Frequency analysis and the Kasiski algorithm

One Time Pad (OTP) and Shannon secrecy

Random and pseudo-random numbers

Data Encryption Standard (DES) and Advanced Encryption Standard (AES)

Understand the basics of public key encryption systems

RSA and Diffie-Hellman key exchange algorithm

Elliptic Curve Cryptography

Modular arithmetic basics (Fermat's theorem, finding primes, integer factorization and discrete logarithm)

Euclidean algorithm (greatest common divisor problem) and the extended Euclidean algorithm

Understand hashing (MD5 and SHA)

Yêu cầu

You should have an interest in cryptography as well as some programming knowledge in Python or Java!

Nội dung khoá học

48 sections

Introduction

1 lectures

Introduction

02:42

Cryptography Fundamentals

4 lectures

What is cryptography?

05:13

Symmetric encryption

03:18

Asymmetric encryption

03:15

Encryption Basics Quiz

3 questions

### SYMMETRIC (PRIVATE KEY) CRYPTOGRAPHY ###

1 lectures

Symmetric cryptosystems

00:11

Caesar Cipher Theory

4 lectures

What is Caesar cipher?

02:58

Caesar cipher - encryption and decryption

04:18

Caesar cipher example

05:42

Caesar Cipher Quiz

3 questions

Caesar Cipher Implementation (Python)

3 lectures

Caesar cipher implementation I

06:03

Caesar cipher implementation II

03:16

Caesar cipher implementation III

04:13

Caesar Cipher Implementation (Java)

3 lectures

Caesar cipher implementation I

06:22

Caesar cipher implementation II

03:22

Caesar cipher implementation III

03:24

Cracking Caesar Cipher

10 lectures

Cracking Caesar cipher with brute-force attack

02:59

Brute-Force Attack Quiz

1 question

Cracking Caesar-cipher with brute-force implementation (Python)