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SANS.org is the homepage for the SANS Institute, a leading provider of cybersecurity training and certifications. It features in-depth courses (including GIAC certifications), along with security research, whitepapers, and practical resources for defenders.
More resources on Cryptography
Handbook of Applied Cryptography
Classic free reference PDF
Cryptography I
Cryptography is an indispensable tool for protecting information in computer systems. In this course you will learn the inner workings of cryptographic systems and how to correctly use them in real-world applications. The course begins with a detailed discussion of how two parties who have a shared secret key can communicate securely when a powerful adversary eavesdrops and tampers with traffic. We will examine many deployed protocols and analyze mistakes in existing systems. The second half of the course discusses public-key techniques that let two parties generate a shared secret key. Throughout the course participants will be exposed to many exciting open problems in the field and work on fun (optional) programming projects. In a second course (Crypto II) we will cover more advanced cryptographic tasks such as zero-knowledge, privacy mechanisms, and other forms of encryption.
Public-Key Cryptography: RSA
Lecture on RSA in number theory context
Understanding Cryptography: A Textbook for Students and Practitioners
Learn cryptography with this comprehensive course by Paar & Pelzl! Explore encryption, security protocols, and more.
Cryptopals Crypto Challenges
Free hands-on cryptography programming exercises
Cryptography
Discover cryptography courses online and explore a career as a cryptographer in edX’s guide.