WebCite query result

http://www.webcitation.org/5gOzGLECz

The pseudo-device /dev/random exists due to a collision between modern networks, and the historical design of the Unix operating system. First, we assume that the users of a system need cryptography, either in a form they use directly (ie, PGP), or that the system uses on their behalf (SSL and IPSec). All such cryptography requires the generation of a large amount of random or pseudo-random bits. There are other uses for such random bits, but these are few and far between, and /dev/random was initially designed for crypto, which is why it tries so hard to be cryptographically secure.

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