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Ethereum: How to get Bech32 address from P2WPKH output script
It is important to understand the underlying blockchain structures and transactions when designing cryptography. One aspect of Ethereum’s architecture is the use of addresses that can be quite difficult for newcomers. In this article, we will go into the Bech32 address from the P2WPKH (Private Key Protected Public Key) output script.
P2WPKH Output script review
The P2WPKH output script is one of the two ways used in Ethereum transactions. The second type is PPVRF (public private Diffie-Hellman). In this context, we will focus on the P2WPKH output script. The P2WPKH output script denotes a private key, which is then protected by a public key using the elliptical curves in the digital signature algorithm (ECDSA).
Bech32 address from P2WPKH output script
To get the Bech32 address from the P2WPKH output script, you will need to follow these steps:
1
Determine the public key : The public key is usually represented as a hexadecimal string and can be accessed directly from the script.
- Remove your private key : You will need to remove the private key from the script. Usually, this includes obtaining a private key value associated with the public key.
Ethereum P2WPKH Output Scrip Format uses a special syntax to encode the private key in BAS64 format. Coded private key can be obtained by removing the leading 0x ... prefix and adding the remaining characters at the end of the Hex string.
3
Generate Bech32 Address
: When you have a coded private key, you can generate Bech32 address using a specialized algorithm or library.
Code Example
Here is an example of a Python script that shows how to get Bech32 address from P2WPKH output script:
`Python
Import the base64
Def derive_bech32_address (p2wkh_output_script):
Remove the private key from the script (assuming it starts with '0x ...')
Private_Key = P2WKH_output_script [10:]
Generate Bech32 address using a library such as Ecrecover or Bech32
Import ECRECOVER
REC = ECrecover.ecrecoverer ()
Addr = Rec.from_private_bytes (Base64.B64Decode (Private_Key))
Return Addr
Use of examples:
p2wkh_output_script = "0x ... (your P2WPKH output script)"
Bech32_address = Decove_bech32_address (P2WKH_output_script)
Print (Bech32_Address)
Output: Your Bech32 Address
Important considerations
Keep in mind that this is a simplified example and it may not cover all the edges. You also need to know about the possible security risks related to getting private keys, such as the disclosure of sensitive information.
As you continue to develop your cryptography projects, it is important to keep track of the latest events and best practices for working with Ethereum’s addresses and scripts.
When performing these steps, you can now get Bech32 addresses from P2WPKH output scripts and get a deeper understanding of how Ethereum’s architecture works.