Cryptography and Cybersecurity in Mobile Devices

Name: Cryptography and Cybersecurity in Mobile Devices
Rating: 4.8 (5 reviews)

Cryptography in Native Mobile Applications, Biometric Authorization, SQLite Storage, AES Algorithm, Build Project

Created byKostoudas Savvas

Last updated 3/2023

English

What you'll learn

Cryptography theory (Symmetric, Asymmetric)
Design and Implementation of Algorithms for Cryptography
Native Mobile Application Development (Angular, Ionic, Capacitor)
Biometric Authorization of the Users
Advanced Encryption Standard (AES) Theory and Analysis

Course content

17 sections • 126 lectures • 16h 50m total length

Introduction2:44
This section is all about the introduction to the seminar. All the necessities will de described in order to be full prepared for this seminar.
Instructor Information1:11
This lecture contains all the information about the instructor of this seminar regarding the personal studies and working experience.

Cryptography Theory Introduction1:18
This lecture is the introduction to this section's theory and academic goals.
Section Preview and Key Elements1:41
This lecture contains the key elements that we are going to discuss in this section.
Cryptography and Important Elements4:16
This lecture contains the definition of Cryptography as well as the main elements.
Algorithms, Classification and Block Ciphers7:14
In this section we area going to examine the algorithms of each category and their classification as well as the block ciphers.
Symmetric Encryption and Algorithms3:43
This lecture contains all the information about Symmetric Encryption and the Algorithms.
Public Key Cryptography (Asymmetric)4:25
This lecture contains the main elements of Public Key Cryptography.
Keys Generation and Hashing6:28
This lecture contains all the information about keys generation and the procedure of Hashing. Furthermore, the differences between cryptography and hashing are presented.
Cryptography Knowledge Quiz

AES Algorithm Introduction1:32
This is the introduction to the AES Algorithm Theory and Implementation Guidelines.
Initial Key Elements2:54
This lecture is the introduction and the analysis of the key starting definitions and theory of Advanced Encryption Standard.
Implementation Steps of AES9:25
This lecture contains all the implementation steps of Advanced Encryption Standard.
Key Expansion Method4:28
This lecture contains the analysis of the Key Expansion Method.
Operation Modes and ECB Mode4:00
Operation Modes and ECB Mode specifically.
CBC Mode and Theory Completion5:30
This lecture contains all the information about the Cipher Block Chaining Operation Mode and the completion of the AES Theory.
AES Knowledge

AES Coding Implementation Introduction0:44
This is the introduction to the section of AES Coding Implementation.
Start of Implementation6:01
This lecture contains the start of the AES Implementation.
Fields and Global Variables Initialization3:57
In this lecture we initialize all the necessary fields and global variables as well as the proper commenting for better readability.
Key Expansion Method Part 16:46
This lecture contains the first part of the Key Expansion method implementation.
Key Expansion Method Part 210:15
This lecture contains the completion of the Key Expansion Method implementation.
XorWithIv and AddRoundKey Methods5:47
This lecture contains the implementation of XorWithIV and AddRoundKey Methods.
SubBytes, ShiftRows and MixColumns Methods10:46
This lecture contains the implementation of SubBytes, ShiftRows and MixColumns Methods.
Cipher and AES Initialization8:43
This lecture contains the Cipher Method Implementation as well as the AES algorithm initialization actions.
AES CBC Encrypt Buffer Method8:51
This lecture contains the main AES CBC Encrypt buffer method implementation.
InvSubBytes, InvShiftRows and InvMixColumns Methods13:21
This lecture contains the methods InvSubBytes, InvShiftRows and InvMixColumns implementation.
InvCipher and AES CBC Decrypt Buffer Methods12:01
This lecture contains the main decryption method of the AES Algorithm an the implementation.
Generate Hash Signatures5:29
This lecture contains the generate hash signature method.
Encrypt a Total File Part 18:02
Implement an async encrypt file method that converts data to a blob, reads it with a file reader, and applies PKCS7 padding for 16-byte blocks in preparation for encryption.
Padding Data and Functionality7:03
Check if the input length needs padding to reach 16-byte blocks, then apply pkcs7 padding by appending bytes whose value equals the number of padding bytes (e.g., 0x01 or 0x05).
NumberToHex Method and Encrypt a Total File Part 213:20
Define a number-to-hex method converting inputs 1–15 to hex values. Implement an encrypt file workflow using a secret key byte array and IV, producing a blob and data URL.
Decrypt a Total File Part 19:58
This lecture contains the initial implementation of the decrypt file method.
Decrypt a Total File Part 28:11
In this lecture the implementation of the decryption method will be completed.

Project Creation Introduction1:35
In this lecture and introduction will be presented regarding the information, steps and knowledge of this section.
Tools and Project Overview1:31
In this lecture the versions of all the necessary tools are going to be presented, such as the Angular, Ionic Info. Furthermore, the project overview is going to be discussed.
All Necessary NPM Installs3:33
This lecture contains all the necessary NPM installs that we are going to need in order to complete this project.
AppRouting and AppModule Functionality8:46
In this lecture we are going to work on the AppModule and AppRouting files with all the functionality.
Custom Font, Colors and First Project Build8:51
In this lecture the custom font, the colors and the first build of the project are presented.

Login Page Design and App Component Actions6:31
In this lecture the login page is initiated with the UI design and the app component needed actions.
Start of Appearance and Styling8:09
In the lecture the login page is initiated with the start of appearance and styling.
Login Page Start of Functionality10:52
In this lecture the start of login page functionality takes place.
Helper Service Started7:12
In the lecture the helper service in initiated providing all the helpful methods that are being used in various pages and modals.
Login Page Functionality Continued8:53
In this lecture the functionality of the login page is continued.
Helper Service Continued9:50
In this lecture the helper service is continued.
Login Page Appearance Continued8:56
In this lecture the login page appearance is continued.
Inputs, Form and Login Button12:45
In this lecture the inputs, the form and the login button are implemented.
Completed Login Page Appearance11:04
In this lecture the login page appearance is complete and a thorough experimentation takes place.
Fixing Small Issues1:37
In this section some small issues are getting addressed and fixed.

SQLite Introduction2:06
In this lecture the introduction to the SQLite Storage is going to be presented.
Necessary Queries and Initializations5:41
In this lecture all the necessary queries and initializations in the SQLite Storage will take place in order to create all the tables that we are going to use in the entire project.
Get and Set DB Version12:10
In this lecture we are going to see all the necessary methods in order to get and set the DB version in order to work with it in the login page of the application.
Restart DB Version Method4:00
In this lecture we are going to implement the Restart DB Version method step by step.
Create all Tables Methods11:39
In this lecture all the methods in order to create all the tables of the SQLite Storage are going to be implemented step by step.
Select all Rows from Tables and Insert Data12:25
In this lecture we are going to create and implement a general method in order to SELECT all the data rows from a given table in the SQLite Storage.
Update Credentials Info Table and Use DB Service Methods in Login8:38
In this section we are going to create the method in order to update the credentials info and furthermore we are going to start using the SQLite Storage methods at the Login Page.
Using all the Method from DB Service and Testing9:21
In this lecture we are going to use all the methods that we created so far in the login page.

Page Design and Initial Actions6:01
In this lecture the design of the Register Page is going to be examined and furthermore the initial actions of the register page are going to take place.
Appearance and Start of Implementation8:25
In this lecture the appearance and the implementation of the register page are starting.
Form and Fields Implementation8:45
In this lecture the form and all the fields are starting to be implemented in the register page.
Inputs and Controls Completed7:30
In this lecture all the inputs and the controls of the form are completed.
Increased Security and Biometric Option Appearance8:53
In this lecture the Increased Security appearance and Biometric Option are implemented.
OnSubmit Method Complete Functionality6:58
In this lecture the OnSubmit method in implemented entirely.
ContinueRegister method and Complementary Methods9:34
In this lecture the ContinueRegister method is implemented. In conjunction to this some complementary methods are being constructed.
Building the Register JSON and User Dat7:40
In this lecture we learn how to build the register JSON in order to later store it into the SQLite Storage as the user identity data.
Continue With Register and Create Custom Loader9:06
In this lecture we continue with the implementation of the register page and we build from scratch a custom loader in order to user in various cases across the entire application.
Component Master Module and Complete Custom Loader10:08
In this lecture we are going to build the Component Master Module for all the components declarations and we are going to complete the custom loader implementation.
Finalize Register Methods10:50
In the lecture all the register methods are being finalized and almost completed.
DoneRegister and Start Of Biometric Authorization Method8:21
In this lecture we complete the register functionality and the Biometric Authorization functionality is starting.
Biometric Authorization Method Completed6:07
In this lecture the biometric authorization functionality is completed.
Testing the entire Register Page and Little Details11:25
In this lecture we test the entire register page and some little details are getting fixed.
Register Page Completed and Testing9:50
In this lecture the entire register page is completed and a thorough experimentation and testing takes place.

Autologin and Decrypt User Data6:39
In this lecture the login page implementation is continued with Autologin method and decryption of the stored user data.
Autologin and Biometric Authorization7:46
In this lecture the Autologin Method is Continued and the Biometric Authorization is completed.
Autologin Functionality Completed12:25
In this lecture the Autologin Functionality is completed.
Forgot Password Functionality Part 18:18
In this lecture the Forgot Password functionality is initiated.
Forgot Password Functionality Part 27:42
In this lecture the Forgot Password Functionality Part 2 is implemented.
Forgot Password Functionality Part 38:27
In this lecture the Forgot Password Functionality Part 3 is completed.
Forgot Password Functionality and Store New Password7:21
In this lecture the Store New Password Functionality is starting as part of the Forgot Password Functionality.
Forgot Password functionality Store New Password Completed7:21
In this lecture the Store New Password Functionality is completed as part of the Forgot Password Functionality.
Forgot Password Modal Appearance13:40
In this lecture the Forgot Password Modal Appearance is initiated.
Forgot Password Functionality Fully Completed9:16
In this lecture the Forgot Password Modal, Appearance and Functionality are fully completed.

Main Page Design and Main Tabs Initiated5:24
In this lecture the design of the main page and the main tabs is examined. Furthermore, all the initial actions take place.
Maintabs Appearance and Functionality Part 18:50
In this lecture the main tabs appearance an functionality will be initiated.
Maintabs UI and Functionality Completed9:09
In this lecture the main tabs UI and functionality is completed entirely.
Main Page Start of Implementation6:49
In this lecture the implementation of the main page is initiated.
Main Page Appearance Started8:56
In this lecture the appearance of the main page is starting.
Mainpage Header and Search Input8:08
In this lecture the header and the search input of the main page are implemented.
Main Page Initializations and Functionality7:24
In this lecture all the initializations and the starting functionality of the main page are implemented.

Requirements

Pre-existent basic Angular and Ionic experience and knowledge is required.
No theory and knowledge about Cryptography is required. You will learn everything that you need to know.

Description

This seminar is all about Cryptography in Native Mobile Applications. Furthermore, in this seminar the complete cryptography theory is examined and specifically the Symmetric and the Asymmetric Cryptography (Public Key Cryptography). In addition to that, the Advanced Encryption Standard Algorithm will be thoroughly examined and implemented step by step using the JavaScript Environment.

This seminar is completed by building from scratch a complete project with the Angular, Ionic and Capacitor Tools, in which the cryptography theory is applied. The encryption and the decryption of all the selected data will be accomplished using of course the AES Algorithm. Of course, the selected data will be stored permanently in the SQLite Storage of the mobile device. As a result, a complete guide and methods will be shown on how we can use efficiently the SQLite Storage of the device.

Finally, in this project we will authorize each user by using the bio metric authorization and specifically the fingerprint scanner the faceID. As a result, we are going to examine and see how we can use the appropriate libraries in order to verify the identity of the user in order to allow the navigation to the main page and the decryption of all the data.

Who this course is for:

Web and Mobile Application Developers who develop safe applications and safe storing of data.
Cyber security analysts and penetration testers for mobile devices.
Cryptography enthousiasts and students that desire to apply the cryptography theory to the mobile devices.

Cryptography and Cybersecurity in Mobile Devices

What you'll learn

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Course content

Introduction2 lectures • 4min

Cryptography Theory7 lectures • 29min

Advanced Encryption Standard (AES) Algorithm Theory6 lectures • 28min

AES Algorithm Coding Implementation17 lectures • 2hr 19min

Starting the Project and General Overview5 lectures • 24min

Login Page and Implementation Part 110 lectures • 1hr 26min

SQLite Storage Part 18 lectures • 1hr 6min

Register Page Implementation15 lectures • 2hr 10min

Login Page and Implementation Part 210 lectures • 1hr 29min

Maintabs and Main Page Part 17 lectures • 55min

Requirements

Description

Who this course is for: