ethereum: ripemd160 (SHA256 (audience)) – where am I confused?
When traveling to understand Ethereum, you probably know the concept of cryptographic keys and their role in providing transactions. However, when it comes to generating and checking signatures using the Hash RipemD160 Ethereum function, there are several common traps that can lead to errors.
In this article, we will deepen the details of Ethereum RipemD160 (SHA256 (public)) and examine where you can be wrong.
Understanding the formula
The RipEMD160 shortcut function is a one -way cryptographic algorithm that accepts a large input (public key) as an argument and produces a permanent output (signature). The main formula is:
RipemD160 (SHA256 (public)) = SHA256 (publication) + nonce
where nonce is nonsens (initialization vectors) used in the HASH process based on SHA-256.
problem
Let’s look now where you can be wrong. Here are some potential problems:
- Public key format : Make sure your public key is in the right format for Ethereum. The “public” argument should be a hexadekist string with at least 64 signs (32 bytes) and without lining.
- Exit SHA-256 : Check if you use the SHA-256 output on the public key as an input to the RipemD160 abbreviation function. Make sure the Show-256 output is not cut or modified in any way.
- ** RipemD160 algorithm version If you use another version, make sure it is in line with Ethereum requirements.
- Inserting
: If you incorrectly initiate your nations, this can lead to the generation of incorrect signatures.
Example use
To illustrate where you can make a mistake, let’s look at, for example:
Let’s assume that you have a public key 0x1234567890abcdef and you want to generate a signature using Ethereum RipemD160 (SHA256 (publication). However, if the moisture is initiated incorrectly or if you do not use the Show-256 output on the public key, as expected, you can encounter errors.
`Javascript
Cont RipemD160 = Crypto.createhash ("RipemD160");
Const Sha256 = Crypto.createhash ("SHA256");
// initiate notpe correctly
Const nonce = 0x1234567890abdef;
// Convert the public key to a hexagonal series
Const wobry = '0x1234567890abdef';
// Use the SHA-256 output as an entrance to RipemD160
Ripemdem160
Let RipemD160SIGNATURE;
If (ripemdem160.digest (). Tostring ('hex')! == SHA256.digest (). Toast ("hex ')) {
Console.error ("error generation signature");
}
Application
When you use the Ethereum RipemD160 (SHA256 (public) formula, make sure you are in accordance with the best practices of the public key format, the SHA-256 output, compatibility of the algorithm version and nonce initialization. In this way you will successfully generate signatures in applications based on Ethereum .
Additional resources
For further tips, I recommend checking the official Ethereum documentation on cryptographic keys and generating signatures:
- [Ethereum core API] (
Shine
Remember to always consult with official resources and follow the best practices of safe cryptographic keys. Congratulations!
