Understanding Ethereum Script Outputs: A guide to scriptpubey, scriptsig, redeemscript, and witness scripts
Ethereum’s scripting system is a powerful tool that allows developmenters to create custom transactions and contracts. At the heart of this system are the various script outputs used in these transactions. In this article, we’ll delve into the different types of script outputs and their corresponding scripts.
SCRIPTPUBYY: A Universal Address Format
A scriptpubey (SPK) is a unique address format used to identify Ethereum addresses. It’s a combination of a private key, public key, and version number. Here’s how it works:
* Public key: the first two bytes of the spk represent the public key.
* Version number: the next byte specifies the version of the Ethereum Standard (Currently 1).
* Private key:
the last 4 bytes are the private key.
Scriptsig: Signatures and Verification
A scriptsig is a signature that verifies the authenticity of a transaction. It’s defined by the following parameters:
* Pubkey:
The public key used to sign the transaction.
* Sighash: the hash of the transaction data, encrypted with the private key.
The Scriptsig Format looks like this:
`
0x00000f3d … (Signature)
`
Redeemscript: Payment Verification
A redeemscript is a script that verifies the validity of a payment. It’s used to check if a transaction has been successfully processed and paid for correctly. The redeemscript format looks like this:
`
0x00000f3d … (Signature)
1x … (Hash Data Transaction)
2x … (Public Key of Sender)
3x … (Private Key of Sender)
4x … (Block number and timestamp)
5x … (difficulty level)
6x … (Amount paid)
7x … (Sender’s Address)
8x … (Recipient’s Address)
9x … (Gas Limit)
10x … (Gas Price)
`
Witness Script: Signing Transactions
A witness script is a type of script that signs transactions on behalf of the sender. It’s used to verify the authenticity and integrity of a transaction, even after it’s been. The Witness Script format looks like this:
`
0x00000f3d … (Signature)
1x … (Hash Data Transaction)
2x … (Public Key of Sender)
3x … (Private Key of Sender)
4x … (Block number and timestamp)
5x … (difficulty level)
6x … (Amount paid)
7x … (Sender’s Address)
8x … (Recipient’s Address)
9x … (Gas Limit)
10x … (Gas Price)
`
Witness Program: Signatures and Verification
A witness program is a type of script that signs transactions on behalf of the sender. It’s used to verify the authenticity and integrity of a transaction, even after it’s been. The Witness Program Format looks like this:
`
0x00000f3d … (Signature)
1x … (Hash Data Transaction)
2x … (Public Key of Sender)
3x … (Private Key of Sender)
4x … (Block number and timestamp)
5x … (difficulty level)
6x … (Amount paid)
7x … (Sender’s Address)
8x … (Recipient’s Address)
9x … (Gas Limit)
10x … (Gas Price)
`
In summary, the scriptpubkey is used to identify Ethereum addresses, while a scriptsig verifies the authenticity of transactions. Redeemscript is used to verify payment integrity, and witness scripts signal transactions on behalf of senders.
Output types
Ethereum supports severe output types, including:
* P2PKH: A private key-based address format.
* P2SH: A hash-based address script format (used for followed).
* BIP39: A BASE58 Check Function (Used for Seed Derivation).
* BIP44: A 32-byte Seed Derivation Format (Used for Storage of Private Keys).
Each output type has its own set of scripts, including scriptpubey, scriptsig, redeemscript, and witness. Understanding these different script outputs is essential for Building Secure and Efficient Ethereum-Based Applications.