|Wikimedia Commons has media related to Cryptography.|
Cryptography is, traditionally, the study of ways to convert information from its normal, comprehensible form into an obscured guise, unreadable without special knowledge — the practice of encryption. In the past, cryptography helped ensure secrecy in important communications, such as those of spies, military leaders, and diplomats. In recent decades, the field of cryptography has expanded its remit. Examples include schemes like digital signatures and digital cash, digital rights management for intellectual property protection, and securing electronic commerce. Cryptography is now often built into the infrastructure for computing and telecommunications; users may not even be aware of its presence.
This category has the following 28 subcategories, out of 28 total.
The following 200 pages are in this category, out of 211 total. This list may not reflect recent changes (learn more).(previous 200) (next 200)