1 / 10

Fundamental Cryptographic Concepts in Cybersecurity

This presentation provides a clear and concise overview of essential cryptographic principles used to protect data in the digital world. Covering core topics such as symmetric and asymmetric encryption, hashing algorithms, digital signatures, and public key infrastructure (PKI), it explains how cryptography forms the backbone of modern cybersecurity. Ideal for students, IT professionals, and cybersecurity enthusiasts, this resource builds a strong foundation in securing digital communication and preventing unauthorized access.

Wininlife
Télécharger la présentation

Fundamental Cryptographic Concepts in Cybersecurity

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. In today's interconnected world, protecting sensitive data is essential. Cryptography, the art and science of secret writing, forms the foundation of cybersecurity. Though often seen as complex, its core concepts are elegant and vital for everyone from casual internet users to cybersecurity experts. Cryptography ensures confidentiality, integrity, authentication, and non-repudiation, safeguarding our digital communications and data. Fundamental Cryptographic Concepts in Cybersecurity

  2. Cryptography aims for confidentiality, integrity, authentication, and non-repudiation to protect data and verify identities. Plaintext is transformed into unreadable ciphertext using a cipher and key. Decryption reverses this process to recover the original data. The complete system of algorithms, keys, and protocols enabling secure encryption and decryption. Core Objectives and Processes of Cryptography Key Objectives Encryption & Decryption Cryptosystem

  3. Uses the same key for both encryption and decryption, like a traditional lock and key. Includes AES, DES, and 3DES, widely used for securing data efficiently. Fast and efficient for large data volumes but requires secure key management and distribution. Symmetric-Key Cryptography Single Shared Key Popular Algorithms Advantages & Challenges

  4. Uses a public key for encryption and a private key for decryption, solving key distribution problems. RSA and Elliptic Curve Cryptography (ECC) are prominent, with ECC favored for mobile device security. Offers better key management but is more computationally intensive than symmetric methods. Asymmetric-Key Cryptography Two Related Keys Common Algorithms Trade-offs

  5. Transforms data of any size into a fixed-size hash value, impossible to reverse. Preimage resistance, second preimage resistance, and collision resistance ensure security. Used to verify data integrity by comparing hash values before and after transmission or storage. Hashing: Ensuring Data Integrity One-Way Function Key Properties Applications

  6. Widely used secure hash algorithm producing a 256-bit digest, standard in many security protocols. Newer hash function designed for enhanced security and resistance to attacks. Both algorithms help detect unauthorized data changes and maintain trust in digital communications. Popular Hashing Algorithms SHA-256 SHA-3 Role in Security

  7. The sender hashes the document and encrypts the hash with their private key to create a digital signature. Recipients decrypt the signature with the sender’s public key and compare hashes to confirm authenticity and integrity. Digital Signatures: Authentication and Non-Repudiation Creation Process Verification

  8. Confirms the sender's identity and origin of the document. Ensures the document has not been altered since signing. Prevents the sender from denying their signature on the document. Benefits of Digital Signatures Authentication Integrity Non-Repudiation

  9. Encryption, decryption, symmetric and asymmetric keys, hashing, and digital signatures form the foundation of cybersecurity. These mechanisms ensure confidentiality, integrity, authentication, and non-repudiation in digital communications. Understanding cryptography is vital for navigating and securing our increasingly digital society. Summary: Cryptography’s Role in a Secure Digital World Core Concepts Protection Goals Essential Knowledge

  10. wininlifeacademy.com

More Related