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Cryptography

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Overview of Cryptography

Cryptography is the practice and study of techniques for secure communication in the presence of adversarial behavior. It provides fundamental mechanisms for protecting digital information, ensuring privacy, integrity, and authentication.

Key Cryptographic Domains

Encryption Techniques

Cryptographic Structures

Advanced Cryptographic Concepts

Practical Applications

  • Secure Communication
  • Digital Signatures
  • Data Protection
  • Authentication Mechanisms
  • Blockchain and Distributed Systems
  • Cybersecurity
  • Information Theory
  • Computer Networks
  • Distributed Computing

Learning Path

  1. Understand basic encryption principles
  2. Study symmetric and asymmetric encryption
  3. Explore advanced cryptographic techniques
  4. Analyze practical implementations

Challenges and Considerations

  • Computational complexity
  • Key management
  • Evolving threat landscapes
  • Performance trade-offs

Resources

  • Cryptography standards
  • Academic research publications
  • Security conference proceedings
  • Open-source cryptographic libraries

Disclaimer

Cryptography is a complex and evolving field. Always consult current research and expert guidance for critical security implementations.

14 items under this folder.

Minimum Attack Vector

The Minimum Attack Vector (MAV) is a metric that measures the level of decentralization in the mining of a blockchain.

Merkle Trees

Merkle Trees are a type of hash tree used in cryptography to verify the integrity of data.

Multi-Signature

Multi-Signature is a type of cryptographic signature that allows multiple parties to sign a message.

Pretty Good Privacy

Pretty Good Privacy is a cryptographic method for secure online communication.

Rivest–Shamir–Adleman

Rivest–Shamir–Adleman is a public-key encryption system that is widely used to secure sensitive data, particularly when being transmitted over an insecure network like the internet.

Zero-Knowledge Proofs

Zero-Knowledge Proofs are a type of cryptographic proof that allows one party to prove to another party that they know a secret without revealing the secret itself.

Advanced Encryption Standard

The Advanced Encryption Standard (AES) is a symmetric block cipher chosen by the U.S. government to protect classified information. It encrypts sensitive data by putting it through multiple encryption rounds and splitting a message into smaller blocks of 128 bits. AES uses the same key for both encryption and decryption, distinguishing it from [[Asymmetric encryption]] algorithms that use different keys for these processes. It supports various key lengths (128, 192, or 256 bits), providing strong protection against unauthorized access. AES is widely implemented in software and hardware globally for securing internet communication, protecting sensitive data, and encrypting files. It became the default encryption algorithm for protecting classified information in June 2003 and is recognized globally for its ability to keep information safe from cyber threats.

Asymmetric encryption

Asymmetric encryption is a type of encryption that uses two different keys for encryption and decryption. The public key is used to encrypt the message, and the private key is used to decrypt the message.

Byzantine Fault Tolerance

Byzantine Fault Tolerance is a feature of a distributed network to reach consensus(agreement on the same value) even when some of the nodes in the network fail to respond or respond with incorrect information.

Cryptography

Cryptography is the practice of using mathematical algorithms to secure information. It is a branch of mathematics that deals with the study of cryptographic systems and their applications in secure communication.

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Elliptic-curve cryptography

Elliptic-curve cryptography (ECC) is a type of public-key cryptography that is based on the algebraic structure of elliptic curves over finite fields. It is an alternative to traditional public-key cryptography algorithms such as RSA and is used for encryption, authentication, and digital signatures.

Formal validation

Formal validation is a process of verifying that a system or program is correct and meets specific requirements. It involves using mathematical tools and techniques to analyze the system's behavior and ensure that it behaves as expected.

Hash table

A hash table is a data structure that stores key-value pairs in an array. It uses a hash function to compute an index into an array of buckets or slots, from which the correct value can be found.

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