Cryptographic Security

Cryptographic security is a foundational concept in computer science and information security that involves using mathematical algorithms and protocols to protect data from unauthorized access, tampering, or disclosure. It encompasses techniques such as encryption, hashing, digital signatures, and key management to ensure confidentiality, integrity, authentication, and non-repudiation in digital systems. This field is critical for securing communications, storing sensitive information, and enabling trust in online transactions.

Also known as: Cryptography, Crypto Security, Encryption Security, InfoSec Cryptography, Cryptographic Protocols

Why learn Cryptographic Security?

Developers should learn cryptographic security when building applications that handle sensitive data, such as financial systems, healthcare records, or user authentication, to prevent breaches and comply with regulations like GDPR or HIPAA. It is essential for implementing secure communication protocols (e.g., TLS/SSL), protecting passwords with hashing, and ensuring data integrity in distributed systems like blockchain. Without it, systems are vulnerable to attacks like eavesdropping, data manipulation, and identity theft.

Learning Resources

• course: Cryptography I - Stanford University (Coursera)
• docs: Cryptography Documentation - MDN Web Docs
• tutorial: Introduction to Cryptography - Khan Academy
• book: Cryptography Engineering: Design Principles and Practical Applications
• video: Cryptography Explained - Computerphile (YouTube)