Cryptography basics - PowerPoint PPT Presentation

Dive into the world of cryptography, quantum-safe cryptography, and quantum technology as discussed in Maurizio D. Cina's presentation at CYBERDAYS in Prato. Topics include current cryptosystems, post-quantum cryptography, quantum key distribution, and future cryptosystems based on quantum algorithm

5 views • 17 slides

Cryptography is the study of techniques used for secure communication, involving creating programs to protect private messages. This overview covers the history, terminology, and significance of cryptography. Explore the basics, cyphers, and the importance of encryption in safeguarding sensitive dat

5 views • 15 slides

Cryptography is the art of concealing messages to ensure information security, involving processes like encryption and cryptanalysis. Explore the history of cryptography from ancient civilizations to modern-day techniques like steganography. Witness the evolution of coding methods and machines that

0 views • 14 slides

Explore the significance of formal verification in quantum cryptography as discussed by Dominique Unruh from the University of Tartu. Understand the challenges, motivations, and current work in verifying quantum crypto protocols, and the potential impact of quantum computers on common encryption met

0 views • 25 slides

Explore the evolution of cryptography from ancient techniques like the Caesar Cipher to modern security mechanisms like SSL, SSH, and IPSec. Learn how cryptography plays a crucial role in ensuring confidentiality, integrity, authentication, non-repudiation, and availability in network security. Disc

1 views • 62 slides

Cryptography involves protecting information by encrypting and decrypting data, while cryptanalysis focuses on breaking encryption methods to access hidden messages. Cryptology encompasses both cryptography and cryptanalysis. Encryption encodes messages to prevent unauthorized access, while decrypti

0 views • 12 slides

Cloud cryptography is a vital aspect of data security in cloud computing, allowing data to be encrypted and processed securely. This presentation delves into the concepts of cloud cryptography, homomorphic encryption, and the two types of homomorphic encryption - hybrid and partial. It discusses the

8 views • 17 slides

Uncover the world of cryptography with a focus on digital advancements, emphasizing the importance of rules in society. Delve into the history of secret communication, code design, and breaking. Explore the rise of cryptocurrencies, digital banking, and blockchain technologies, such as Bitcoin and E

0 views • 12 slides

Delve into the realm of quantum money, computation, and cryptography, understanding the intricacies of semi-quantum money, consensus problems, post-quantum cryptography, and unique concepts like certifiable randomness and tokenized digital signatures.

6 views • 30 slides

This content provides an introduction to basic security properties such as confidentiality, authenticity, integrity, availability, non-repudiation, and access control. It also covers the fundamentals of cryptography, including symmetric and asymmetric encryption, public-key cryptography, and the imp

2 views • 41 slides

Cryptography is the study of methods for sending and receiving secret messages securely. This lecture explores the application of number theory in computer science, focusing on the design of cryptosystems like public key cryptography and the RSA cryptosystem. The goal of cryptography is to ensure th

0 views • 53 slides

Explore the various aspects of post-quantum cryptography security, including evaluation criteria, building public key cryptography (PKC) systems, security proofs, digital signatures, and reduction problems. Dive into topics such as performance, cryptanalysis, provable security, standard models, exis

0 views • 42 slides

Public-Key Cryptography revolutionized secure communication by introducing the concept of using separate keys for encryption and decryption. Initially explored by researchers like Diffie, Hellman, and Merkle in the 70s, it addressed key distribution challenges faced by symmetric cryptography. This m

0 views • 34 slides

Explore the MIT course "Foundations of Cryptography" offering insights on cryptography, key themes like adversarial thinking and computational hardness, historical context, and the significance of security proofs via reductions. Learn about the course staff, topics covered, and intellectual origins

2 views • 33 slides

Delve into the realm of post-quantum cryptography through an insightful journey of constructive reductions, rethinking cryptography assumptions, and the relationship between classical and post-quantum regimes. Discover the challenges, advancements, and goals in the quest for durable cryptographic al

1 views • 21 slides

This text delves into the fundamental concepts of number theory, divisibility, and finite fields essential for understanding cryptography. It covers topics such as divisibility, properties of divisibility, the division algorithm, the Euclidean algorithm for determining the greatest common divisor, a

0 views • 35 slides

This presentation discusses key distribution and management in cryptography, covering symmetric and asymmetric key cryptography, methods for sharing symmetric and public keys, as well as key distribution techniques such as manual delivery, initial key distributions, and the use of trusted third part

0 views • 30 slides

Delve into the fascinating world of public-key cryptography, where the convergence of prime numbers and inverse functions plays a pivotal role in ensuring secure communication. From the history of math to contemporary applications, discover how encryption and decryption transform messages to keep th

2 views • 21 slides

Explore the concepts of public key cryptography, key distribution challenges, solutions to secret key schemes, and the importance of secure communication in network security. Learn about cryptology, cryptography, cryptanalysis, block ciphers, stream ciphers, and more in this informative content.

0 views • 21 slides

This lecture delves into the realm of public-key cryptography, including the Knapsack one-way function and the Merkle-Hellman Crypto System. It explores historical perspectives, the concepts of OWFs, Elliptic Curve Cryptography, and introduces new algebra using additive groups over Elliptic Curves.

0 views • 16 slides

Explore the importance of cryptography verification in F* through Jean-Karim Zinzindohou's joint work with Karthik Bhargavan. Discover the significance of verifying crypto, static guarantees provided, and examples like elliptic curve cryptography. Delve into F* as a rich ML-like language for secure

1 views • 38 slides

Public-key cryptography, including the BLISS lattice-based signature scheme, is pervasive in digital security, from code signing to online communication. The looming threat of scalable quantum computers has led to the development of post-quantum cryptography, such as lattice-based cryptography, whic

0 views • 13 slides

Lightweight cryptography has emerged as a hot research topic in the past two decades, with over 60 ciphers proposed. This includes examples like PRESENT, GIFT, SIMON/SPECK, and more. Authenticated encryption through CAESAR and NIST LWC plays a vital role, with ASCON and ACORN leading the lightweight

1 views • 25 slides

The Cryptographic Center in Novosibirsk, established in 2011, focuses on advancing cryptography through research, education, and international collaborations. With a team of researchers and students, the center explores various aspects of cryptography, including cryptographic Boolean functions, ciph

0 views • 33 slides

Explore the challenges of key management, the use of trusted third parties in generating shared keys, the limitations of toy protocols in secure key exchange, and the evolution of public-key cryptography techniques like Merkle Puzzles, Diffie-Hellman, and RSA. Learn how to achieve secure key exchang

1 views • 36 slides

Delve into the realm of post-quantum cryptography and learn about the evolving landscape of secure communication. Explore topics such as Supersingular Isogeny Graphs, Ring-Learning With Errors, and the significance of key exchange in maintaining confidentiality. Discover the foundations of public ke

0 views • 39 slides

Delve into the world of unclonable cryptography, understanding new definitions, constructions, and limitations. Discover the unique properties that set unclonable encryption apart from classical cryptography and explore its practical applications.

0 views • 16 slides

Discover the intriguing world of cryptography through a journey into the history and methods of code-making and code-breaking. Uncover the importance of codes in everyday life, from book ISBNs to encrypted internet data, and learn about classic techniques like Caesar shifts. Test your skills by deco

0 views • 4 slides

Explore the fundamentals of lattice-based cryptography and the significance of solving linear equations in cryptography. Learn about the exponential hardness and quantum resistance of lattice-based crypto, as well as the challenges and techniques involved in solving linear equations with various str

2 views • 29 slides

Explore the basics of cryptography, including classical encryption techniques, terminology definitions, types of encryption operations, cryptanalysis objectives and attacks, and the concept of cipher strength. Uncover the principles and methods behind encryption and decryption, key distinctions betw

0 views • 52 slides

Explore the world of cryptography through this comprehensive guide covering topics such as conventional cryptography, public key cryptography, one-way authentication, trap doors, computational complexity, and more. Learn about the importance of privacy in communications and the key principles behind

0 views • 20 slides

Dive into the world of cryptography with the Cryptography Hands-On Learning Lab Activity (HOLLA) at the University of South Alabama's School of Computing. Explore fundamental encryption principles, shift ciphers like Julius Caesar's, symmetric encryption, and cryptanalysis techniques. Learn to encry

0 views • 13 slides

In lecture 22 of MIT's Foundations of Cryptography series, delve into advanced cryptographic concepts and techniques. From modern encryption algorithms to cryptographic protocols, this lecture offers profound insights to enhance your cryptographic knowledge and understanding. Explore cutting-edge to

0 views • 46 slides

Cryptography is essential for secure information transfer in various aspects of modern life, from online purchases to transmitting TV signals. However, the importance of safeguarding information against external threats cannot be overstated, as seen in examples like intercepting private messages and

0 views • 47 slides

This content discusses lower bounds on signature lengths based on group actions and generic isogenies in cryptography. It covers topics such as isogeny-based cryptography, post-quantum cryptography, hardness assumptions, and ID protocols in a comprehensive manner.

0 views • 13 slides

Cryptography is the art of writing or solving codes to keep information secure. This content explores various encryption methods such as Caesar Shift and Simple Substitution Cipher. It also delves into key cryptography, explaining the significance of keys in encrypting and decrypting messages. Under

0 views • 32 slides

Cryptography is the art of securing communication through the use of codes and ciphers. This overview covers fundamental concepts such as symmetric and asymmetric cryptography, hashes, attacks on cryptography, and best practices. Understand the terminologies in cryptography, the use of keys, and the

0 views • 63 slides

In this week's summary, we delve into the fundamentals of cryptography, encryption schemes, authentication, privacy, integrity, and more. Explore the workings of secret-key and public-key cryptography systems to secure data at rest and in motion effectively.

0 views • 39 slides

Delve into the world of cryptology with a focus on public key cryptography, as pioneered by Whitfield Diffie, Martin Hellman, and James Ellis. Explore the revolutionary concept of using public and private keys for secure communication without the need for a prior key exchange. Uncover the insights a

0 views • 38 slides

Cryptography involves securing and transmitting information through various techniques like encryption, decryption, and cipher text. It encompasses different security types, including communication security and transmission security. The history of cryptography systems is rich, spanning from letter

0 views • 26 slides