Tag
entropy
- Oct 10, 2026 Where Address-Space Randomisation Gets Its Entropy Which regions are randomised, how many bits of entropy each actually receives, and why a single leaked pointer can undo the whole arrangement. security
- Oct 9, 2025 Detecting DNS Tunnels from Query Structure How DNS becomes a bidirectional data channel, which structural properties of queries carry the signal, and why entropy alone is a weak discriminator against legitimate naming schemes. security
- Dec 27, 2024 UDP Source Port Entropy and Underlay ECMP Why a tunnel collapses many flows onto one underlay path, how deriving the outer source port from an inner-header hash restores path diversity, and when the hash runs out of entropy. networking
- Nov 23, 2024 How a Session Identifier Binds Requests to Server State What the opaque string in a session cookie actually denotes, how much entropy it needs, and why the identifier and the record it points at have separate lifetimes. backend systems
- Nov 3, 2024 Entropy Sources and the Path from Randomness to a Key Why a generated key is capped by the entropy behind it, how kernel pools and deterministic generators condition that entropy, and where the path breaks. cryptography
- Mar 6, 2024 Shannon Entropy as the Expected Cost of an Outcome Why information is measured as the logarithm of reciprocal probability, how entropy averages that quantity over a source, and where the number stops describing anything real. computation theory