Via puts RNGs on new processors
Perry E. Metzger
perry at piermont.com
Tue Apr 8 12:20:27 EDT 2003
The new Via Technologies x86 clone processors appear to have on-board
cryptography support, including a hardware random number generator.
http://www.via.com.tw/en/Digital%20Library/PR030122Nehemiah.jsp
Quoting from the above:
PadLock Data Encryption Engine
The PadLock Data Encryption Engine has been integrated into the new
generation VIA C3 processor to ensure greater confidentiality,
integrity, and authenticity of electronic data either stored in the
computer or transmitted over a network or the Internet, and enables
a host of powerful new security applications, including heavy-duty
data encryption and safer online transactions.
At its heart is an advanced Random Number Generator (RNG) that uses
random electrical noise on the chip to securely produce random
number values, and features a direct application level interface
through a new x86 instruction. Developers can obtain random numbers
directly from the hardware without having to use separate software
drivers, thereby providing an inherently more secure and efficient
solution than combined hardware/software RNG architectures. The RNG
includes several operating modes, offering performance from 750K
bits per second to as high as 6 million bits per second.
"VIA's incorporation of a hardware random number source on the
processor die is exciting for developers, since it provides a
simple and effective way of obtaining high quality randomness. This
is particularly important for security and cryptography
applications, since it is notoriously difficult to generate random
numbers of adequate quality without a hardware random number
generator," said Paul Kocher, President of Cryptography Research,
Inc. and co-inventor of SSL 3.0. "I am enthusiastic about the
benefit to applications such as secure web browsing, cryptographic
key generation, and protocols where randomness is required."
FYI, it appears that Cryptography Research has done an evaluation on
the RNG. See: http://www.cryptography.com/resources/whitepapers/index.html
--
Perry E. Metzger perry at piermont.com
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