'Sin7Y: About the Sinsemilla hash function used in OlaVM' sin7y cryptographichashfunction
What Daira is referencing can in simple terms be described with the following: The security level ofis collision resistant, so it cannot be regarded as a Random Oracle. For the ECDSA and Schnorr signature algorithms, in order to satisfy sufficient security, the choice of hash function needs to be regarded as Random Oracle. In order to understand this better, we need to understand some cryptographic concepts first.
An important aspect to be noted is that, if you satisfy the conditions for Collision Resistance, you also satisfy the conditions for Second Preimage Resistance, however this does not guarantee that you are satisfying the conditions for Preimage Resistance.Imagine you have a black box. In the box lives a gnome, with a big book and some dice.Given some input data that the gnome did not see beforehand, he uses his dice to generate some output, uniformly and randomly, in some conventional space .
If he is given some formerly known input data, the gnome turns to his book, in order to recover the output he generated and returned the last time, and returns it again.If x has been used as input data before, it will directly return the corresponding H. If x has never been used as input data, the Random Oracle will generate a string consisting of 0.1 in the range of valueshere means that even the Random Oracle itself does not know what the final value will be, it has no rules to follow. This is the main difference from hash functions. Any hash function has its own calculation rules.
But in the real world, it is quite difficult to achieve an actual Random Oracle, therefore, we need to find a potential candidate for Random Oracles, and we need to make the output as random as possible. Hash functions are a good choice. A secure hash function needs to satisfy the following conditions: Preimage Resistance, Second Preimage Resistance, and Collision Resistance.
Österreich Neuesten Nachrichten, Österreich Schlagzeilen
Similar News:Sie können auch ähnliche Nachrichten wie diese lesen, die wir aus anderen Nachrichtenquellen gesammelt haben.
2 more suspects arrested on weapons charges following butane hash oil explosion in Santa RosaPolice have made two additional arrests and recovered a dozen firearms including a stolen assault rifle following a weekend explosion at a Santa Rosa home triggered by an illegal hash oil lab.
Weiterlesen »
Guest Post by Caduceus: Where will Ethereum PoW miners go post-merge? | CoinMarketCapSuch activity is further evidenced by Messari data which reveals a steady decline in Ethereum’s hash rate since May 2022 and a 47% drop in GPU resale value since December 2021.
Weiterlesen »
SEO Analysis: How to Improve JavaScript Module for 'Related Stories' & HackerNoon's Internal Linking | HackerNoonLaunched in 2016 covering tech, entrepreneurship and productivity. Hackernoon has gone through an amazing transformation over the years.
Weiterlesen »
4 Link Building Strategies For SaaS Companies | HackerNoonWhile many marketers and business owners understand the importance of links, very few can execute an effective link building strategy.
Weiterlesen »