[ad_1]
The researchers were able to discover a vulnerability in different cryptocurrency networks. This is currently affecting the value of $ 54 of Bitcoin (BTC), $ 14 of XRP and only 0.00002 ETH. The problem is related to a vulnerability in digital signatures that affects these different virtual currencies.
Abandon the 0day Bitcoin. pic.twitter.com/y2n2bI3VwM
– Matthew Green (@matthew_d_green) 9 January 2019
According to the researchers, the problem seems to be related to a configuration defect in hardware, multi-sig or the possible generation of a not very random number.
One of the researchers, Joachim Breitner, has explained:
"When you create a cryptographic signature using ECDSA (the digital signature algorithm of the elliptic curve), you have to come up with the nonce, a random 256-bit number.It is very important to use a different nonce every time, otherwise it is easy for someone else take your signatures and calculate your private key by doing a relatively simple math. "
Second Breitnerthere are people who monitor blockchain for signatures that have these repeated nonce and try to extract money from these keys.
The paper suggests that the attack would be very limited as it could only affect $ 54 of Bitcoin, $ 14 XRP and 0.00003 ETH. Furthermore, this could be avoided by using ECDSA deterministic nonce generation which is already implemented in the Bitcoin and Ethereum libraries. Furthermore, the flaws do not seem to be known as the funds have not yet been stolen. However, it would require time, skill and skill to perform the attack, which could be used for another purpose.
If you're a recent Bitcoin user with a new wallet from a popular service, there's a lot to worry about.
[ad_2]
Source link
