The US Constitution says any natural-born citizen over 35 who has lived in the country for at least 14 years can run for President. But in reality, leading the world’s most powerful nation ...

The Cipher Brief brings expert-level context to national and global security stories. It’s never been more important to understand what’s happening in the world. Upgrade your access to exclusive ...

One of the main security requirements for symmetric-key block ciphers is resistance against differential cryptanalysis. This is commonly assessed by counting the number of active substitution boxes (S ...

Eric Trager is the Esther K. Wagner Fellow at The Washington Institute for Near East Policy, where his research focuses on Egyptian politics and the Muslim Brotherhood in Egypt. Dr. Trager has served ...