Ethereum: Where does a random number come to play when signing a transaction?
As for the signature of transactions in the Ethereum network, one often asks how the random number generator (RNG) works, which is used to generate these cryptographically secured signatures. It may seem as a dark detail, but understanding where and why this RNG plays a role is decisive for anyone who is interested in learning more about Ethereum.
What is the cryptographic signature?
Before we dive into the details of the random number generator, we quickly cover, which is a cryptographic signature. The digital signature is basically a unique code that proves to other parties that the sender has verified a specific message or transaction. It is like a fingerprint digital fingerprint that adds another layer of safety and authenticity.
As Ethereum means transactions
In the Ethereum network, transactions are signed using a specific ECDSA algorithm (Elliptical Curve algorithm digital signatures). This algorithm is designed to be very safe, but relies on the generator of random numbers when generating these signatures. RNG used in the ECDSA generates a unique sequence of numbers, which are then combined with transaction data hash to create a digital signature.
The role of a generator of random numbers
In the context of Ethereum, a random number generator is used to create a sequence of 32-bit values called „BLS12-381” (Blake’s 12-381). These BLS12-381 values are then combined with the transaction data hash using the SHA-256 algorithm. The resulting signature is verified by other nodes in the network and is accepted as a valid signature if it passes the tests.
How does RNG work?
The RNG used in Ethereum is based on the algorithm of the „Linear Congrucial Generator” (LCG). This algorithm creates a sequence of numbers that follow the predictable model, but still has sufficient randomness to ensure safety. The LCG algorithm is designed to generate high -quality random numbers with low probability of collisions, ensuring that generated values are cryptographically safe.
Why is this decisive for safety?
The use of RNG in the process of generating an Ethereum signature is not just about generating random numbers; It is also about ensuring the safety and integrity of the network. The randomness provided by RNG helps prevent the attacker from predicting a digital signature, which makes it difficult for them to create transactions or signatures.
at the end
The random number generator plays a decisive role in signing Ethereum transactions. Using a unique sequence of numbers generated via the LCG Ethereum algorithm ensures that its digital signatures are cryptographically safe and practically unpoped. The next time you see the signing of the Ethereum transaction, remember that there is a bit of RNG spells – and that is something to appreciate for the safety and integrity it provides.
This article is a summary of the importance of random numbers in the transactions of signing Ethereum and their role in ensuring security and integrity in the network.