51960833
submission
ananyo writes:
Jurassic Park’s iconic image of a fossilized blood-filled mosquito was thought to be fiction — until now. For the first time, researchers have identified a fossil of a female mosquitowith traces of blood in its engorged abdomen. The fossilized mosquito contains molecules that provide strong evidence of blood-feeding among ancient insects back to 46 million years ago (paper abstract). The insect was found not in amber, as depicted in Jurassic Park, but in shale sediments from Montana. After 46 million years, however, any DNA would be long degraded.
51936219
submission
Okian Warrior writes:
As a followup to Linus's opinion of people skeptical of the linux random number generator, a new paper analyzes the robustness of /dev/urandom and /dev/urandom.
From the paper: "From a practical side, we also give a precise assessment of the security of the two Linux PRNGs, /dev/random and /dev/urandom. In particular, we show several attacks proving that these PRNGs are not robust according to our definition, and do not accumulate entropy properly. These attacks are due to the vulnerabilities of the entropy estimator and the internal mixing function of the Linux PRNGs. These attacks against the Linux PRNG show that it does not satisfy the "robustness" notion of security, but it remains unclear if these attacks lead to actual exploitable vulnerabilities in practice."
48549095
submission
dryriver writes:
Global personal computer (PC) sales have fallen for the fifth quarter in a row, making it the "longest duration of decline" in history. Worldwide PC shipments totalled 76 million units in the second quarter, a 10.9% drop from a year earlier, according to research firm Gartner. PC sales have been hurt in recent years by the growing popularity of tablets. Gartner said the introduction of low-cost tablets had further hurt PC sales, especially in emerging economies. "In emerging markets, inexpensive tablets have become the first computing device for many people, who at best are deferring the purchase of a PC," said Mikako Kitagawa, principal analyst at Gartner, said in a statement.
