Digital Technology Presentation

COMPUTER SECURITY

PRESENTATION

AES

RSA

03

01

.Advanced Encryption Standard(AES): A symmetric encryption algorithm widely adopted for securing sensitive data. It operates on fixed-size blocks of data and supports key lengths of 128, 192, or 256 bits

SRSA (Rivest-Shamir-Adleman): An asymmetric encryptionalgorithm based on the difficulty of factoring large prime numbers. RSA involves a public key for encryption and a private key for decryption.

DH

ECC

04

02

.Diffie-Hellman Key Exchange(DH): A method for securely exchanging cryptographic keys over a public channel. It allows two parties to establish a shared secret key without prior communication.

NElliptic Curve Cryptography(ECC): A public-key cryptography system based on the algebraic structure of elliptic curves over finite fields. ECC offers strong security with smaller key sizes compared to other public-key.

RSA

.RSA (Rivest-Shamir-Adleman): An asymmetric encryptionalgorithm based on the difficulty of factoring large prime numbers. RSA involves a public key for encryption and a private key for decryption.

ECC

Elliptic Curve Cryptography(ECC): A public-key cryptography system based on the algebraic structure of elliptic curves over finite fields. ECC offers strong security with smaller key sizes compared to other public-key.

.DH

,.Diffie-Hellman Key Exchange(DH): A method for securely exchanging cryptographic keys over a public channel. It allows two parties to establish a shared secret key without prior communication.

AES

Advanced Encryption Standard(AES): A symmetric encryption algorithm widely adopted for securing sensitive data. It operates on fixed-size blocks of data and supports key lengths of 128, 192, or 256 bits.

flowchartilustrating the method and sequence of encryption:.

EXPLAIN THE STRENGTHS AND WEAKNESSES OF THIS SYSTEM

strengths point

security.

AES is considered highly secure against various types of attacks when implemented correctly.It has withstood extensive analysis and cryptanalysis without any significant vulnerabilities being discovered.

strengths point

.Efficiency

It is computationally efficient, allowing for fast encryption and decryption processes, especially with hardware support likeAES-NI (Advanced Encryption Standard New Instructions) in modern CPUs.

strengths point

standardization

• AES is a globally accepted standard, ensuring interoperability and compatibility across different systems and applications.

strengths point

Ascalability..

• AES supports multiple key sizes (128, 192, and 256 bits),
• providing flexibility for varying security requirements.

strengths point

Resistance to Known Attacks..

..AES has demonstrated resistance against known attacks like brute-force, differential cryptanalysis, and linear cryptanalysis, making it a reliable choice for secure communication.

weeknesspoint

Side-Channel Attacks...

Certainimplementations of AES might be vulnerable to side-channel attacks such as timing attacks or power analysis attacks if proper countermeasures aren't implemented.

weeknesspoint

QuantumComputing Threat

• While AES is secure against classical computing-based attacks, it might become vulnerable to quantum computing attacks in the future. Quantum computers have the potential to significantly reduce the time required to break cryptographic algorithms like AES.

weeknesspoint

Key Management..

• The strength of AES heavily relies on proper key management. If keys are weak, predictable, or compromised, the security of AES can be undermined.

weeknesspoint

Key Length Concerns..

There might be concerns regarding the smaller key sizes (128 bits) against future advancements in computing power.However, AES-192 and AES-256 offer increased key lengths for heightened security.

MENTION THE WORKS RELATED TO THIS SYSTEM DURING THE LAST 5 YEARS..

HardwareImplementations:

Side-Channel Attacks and Countermeasure:

Security Analysis and Cryptanalysis:

Researchers continually explore vulnerabilities related to side-channel attacks on AESimplementations and develop countermeasures to mitigate these risks. This includes techniques to protect against timing attacks, power analysis, electromagnetic analysis, etc.

Despite AES's robustness, ongoing research aims to conduct rigorous security analyses and cryptanalysis to discover potential weaknesses or vulnerabilities in the algorithm. This involves exploring new attack vectors and attempting to find weaknesses in specificAES variants.

Ongoing efforts have been made to optimizeAES implementations for various hardware platforms, including CPUS, GPUS, FPGAS, and dedicated cryptographic hardware. Research has focused on enhancing speed, efficiency, and security of AES in these contexts

Implementations in IoT and Resource-ConstrainedDevices: Research has focused on adapting ABS for use in resoures constrained environments like Internet of Things (loT) devices, ensuring efficient eneryption and decryption with limited computational and energy resources.

QuantumCryptanalysis and Post-Quantum Security: As quantum computing poses a potential threat to conventional cryptographic algorithms, including AES, research has been directed towards analyzing the resilience of AES against quantum attacks. Additionally, investigations into post-quantum secure versions of AES or alternative quantum-resistant encryption methods have been ongoing.

Enhancements inBlock Cipher Modes: Studies have explored novel modes of operation for AES, focusing on efficiency, data integrity, authenticated encryption, and secure data transmission protocols..

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COMPARE THIS SYSTEM WITH ANOTHER SYSTEM CLOSEST TO IT.

SUGGEST A NEW HYBRID SYSTEM THAT COMBINES THE TWO SYSTEMS WITH DRAWING A FLOWCHART SHOWING THE METHOD AND SEQUENCE OF WORK OF THE NEW HYBRID SYSTEM.

ENCRYPTION PROCESS:INPUT PLAINTEXT DATA: THE PLAINTEXT DATA THAT NEEDS TO BE ENCRYPTE IS TAKEN AS INPUT. AES ENCRYPTION: USING KEY AES, PERFORM AES ENCRYPTION ON THE PLAINTEXT, RESULTING IN AES ENCRYPTED DATA. • DES ENCRYPTION: USE KEY DES TO PERFORM DES ENCRYPTION ON AES_ENCRYPTED_DATA, PRODUCING DES_ENCRYPTED _DATA./

key generation

1. TWO SEPARATE ENCRYPTION KEYS ARE GENERATED: KEY_AES FOR AES AND KEY DES FOR DES. 2. THE KEY GENERATION PROCESS MUST ADHERE TO SECURE CRYPTOGRAPHIC PRACTICES TO ENSURE THE STRENGTH AND RANDOMNESS OF THE KEYS. ENCRYPTION PROCESS:/

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DECRYPTION PROCESS:

INPUT ENCRYPTED DATA: INPUT THE ENCRYPTED DATA, DES_ENCRYPTED_DATA, OBTAINED AFTER THE ENCRYPTION PROCESS.2. DES DECRYPTION: USE KEY DES, TO PERFORM DES DECRYPTION ON DES ENCRYPTED DATA, GENERATING AES ENCRYPTED DATA. 3. AES DECRYPTION: USE KEY AES TO PERFORM AES DECRYPTION ON AES_ENCRYPTED DATA, RESULTING IN THE ORIGINAL PLAINTEXT DATA.

CLARIFICATION:

CONSIDERATIONS:

1. THE ENCRYPTION PROCESS USES AES FIRST AND THEN FOLLOWS IT WITH DES ENCRYPTION, CREATING A DOUBLE-LAYERED ENCRYPTION SCHEME.2. IN THE DECRYPTION PROCESS, THE REVERSE ORDER IS FOLLOWED: DES DECRYPTION FIRST AND THEN AES DECRYPTION TO RETRIEVE THE ORIGINAL PLAINTEXT DATA.

1-THIS HYBRID APPROACH AIMS TO COMBINE THE STRENGTHS OF AES AND DES, POTENTIALLY ENHANCING SECURITY. 2-KEY MANAGEMENT AND SECURE STORAGE OF KEYS ARE CRUCIAL TO MAINTAIN THE OVERALL SECURITY OF THE SYSTEM. 3-HOWEVER, COMBINING AES AND DES MIGHT INTRODUCE COMPLEXITY WITHOUT A SIGNIFICANT INCREASE IN SECURITY, AS AES ALONE IS ALREADY HIGHLY SECURE COMPARED TO DES.

USE STATISTICAL TESTS AND COMPARE THEM BETWEEN THE ORIGINAL ENCRYPTION SYSTEM, THE CLOSEST ENCRYPTION SYSTEM, AND THE PROPOSED HYBRID ENCRYPTION SYSTEM

Correlation Test

Randomness Test

Frequency Analysis

Correlation tests assess whether there is any statistical correlation or dependence between elements or bits in the ciphertext. Detecting correlations might indicate potential vulnerabilities or patterns that could be exploited by cryptanalysts to decipher the encrypted data.'.

Randomness tests aim to assess the degree of randomness orunpredictability present in a sequence of data (in this case, ciphertext from encryption systems). The tests help determine if the encrypted output demonstrates characteristics expected from a random sequence or if it exhibits patterns, biases, or regularities that might indicate weaknesses in the encryption algorithm.

Frequency analysis involves examining the frequency distribution of elements within a dataset (in this case, bytes or characters in ciphertext). It helps identity patterns or biases in the distribution of clements and can reveal statistical characteristics of the encrypted data, aiding in assessing the randomness or uniformity of the ciphertext..

PROVE ALL OF THE ABOVE BY PRESENTING THE CODE USED, THE RESULTS, AND THE METHOD OF PRESENTATION (PYTHON LANGUAGE IS PREFERRED).

out put

Enter plaintext: hello! my name isMostafa Ghazi.Encrypted Data (AES then DES): 572a963670aa5b9b38085a9def443c1f155293271b7a41b4890c06b64607ae1e900556186a399515b23dff354e4ca3e4f6e5b47b9 7ad5fc1 Decrypted Plaintext: hello! my name is Mostafa Ghazi

THANK YOU!

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In Genially you will find over 1,000 ready-to-use templates to showcase your content and 100% customizable, which will help you tell your stories.

With this function...

With this function...You can add additional content that excites the brain of your audience: videos, images, links, interactivity... Whatever you want!

Did you know...

The window allows you to add more extensive content. You can enrich your genially by incorporating PDFs, videos, text... The content of the window will appear when clicking on theinteractive element.

Did you know...

In Genially you will find over 1,000 ready-to-use templates to showcase your content and 100% customizable, which will help you tell your stories.