Ethereum P2SH Address Decoding: Step by Step
As a developer, understanding of cooperation with Ethereum titles is essential for the construction of decentralized applications on the blockchain. One of the most complex concepts of Ethereum is the address system of the P2SH (public key hash), used by the Ethereum network.
In this article, we immerse yourself in the process of decoding the P2SH with the associated hexadecimal script (hex.script). We examine an example and step by step to understand how it is decoded.
What is P2SH title?
The P2SH title is a type of Ethereum address that uses a public key (PKH) as a key, not a private key. This means that the title is not directly related to each wallet accounts, but a digital signature that checks the identity of the sender.
The process of decoding the p2SH title
You need to know two things to decod P2SH:
- The hexadecimal script (
hex.script): This is a public key to the sender’s private key.
2.
Példa: TX Bea1e7ae7ecdc502215717f30d62a12085BB2866d8db730dfb626b60c337534c
**
Take a look at an example transaction: tx bea1e7ae7ae7aE7aE7aE7aE7aE7aE7aE7aE7aE7ECDC502215717F30D62A12085BB28666d8d8db730dfb62626B60c337534c. The hex script of this transaction:
`
1 0x … (PKH of the sender’s private key)
`
In this example, “PKH” represents the public keychain.
Decoding the P2SH title
To decode the P2SH title, we need to combine “hex.script”, “Scriptsig” and “Scripthash”. They look like this:
tx bea1e7ae7ecdc502215717f30d62a12085bb2866d8db730dfb626b60c337534c
Hex.script`
0x ..., which represents the PKH of the sender's private key.
Scriptsig and scripthash
Demoline each ingredient:
* Scriptsig : This is the first four bytes (0x00 01) that contain a signature for the transaction. In this case, this is an empty signature.
* Scripthash
: This is the last two bytes (0x8c 01) that contain the transaction data.
Decoded P2SH Address
We get these ingredients in combination:
tx bea1e7ae7ecdc502215717f30d62a12085bb2866d8db730dfb626b60c337534c
" ""
This is the decoded P2SH0x …`, which represents a digital signature.
Example Use the case
You can use this decoded address to control the transaction credibility to create a public key hash of the sender’s private key. You can then use the resulting PKH as “hex.script” for any other transaction that uses P2SH titles.
By understanding how to decode P2SH titles with its associated hexadecimal script, as well as “Scriptsig” and “Scripthash”, it is well on its way to the construction of robust and secure decentralized applications on the ETHEREUM network.
