[cryptography] Mixing RdRand with other CPU-based entropy sources?

2013-12-19 Thread Joachim Strömbergson
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Aloha! Here is a question: If we (barely) trust RdRand enough to use it as an entropy source in combination with another source to feed our RNG - would it be wise to use another CPU-based entropy source such ad Haveged [1], DakaRand [2], Jytter [3]

Re: [cryptography] Mixing RdRand with other CPU-based entropy sources?

2013-12-19 Thread Natanael
It's always a good idea to use several entropy sources and cryptographically mix their outputs into your pool. They won't reduce your total entropy either way, any predictable sources will only be adding less entropy than promised. - Sent from my phone Den 19 dec 2013 09:19 skrev Joachim

Re: [cryptography] Mixing RdRand with other CPU-based entropy sources?

2013-12-19 Thread Stephan Mueller
Am Donnerstag, 19. Dezember 2013, 09:58:06 schrieb Natanael: Hi Natanael, It's always a good idea to use several entropy sources and cryptographically mix their outputs into your pool. They won't reduce your total entropy either way, any predictable sources will only be adding less entropy than

Re: [cryptography] NIST Randomness Beacon

2013-12-19 Thread dan
After all that discussion of the randomness beacon, it belatedly occurs to me to ask if anyone has ever applied, even for fun, any of the various tests for randomness to the transmissions from the various shortwave numbers stations. http://en.wikipedia.org/wiki/Numbers_station --dan