Blockchain Transaction Scripts for Compact Condition Enforcement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing techniques for enforcing conditions on blockchain transactions are inefficient and require significant computational resources due to repeated inclusion of candidate fields in locking and unlocking scripts, which can compromise security and increase storage requirements.
Innovation Solution
A method is introduced where a first blockchain transaction includes a locking script that generates a representation of a second transaction based on candidate fields, using a signature sub-script to verify the representation, thereby reducing storage size and computational complexity by fixing the ephemeral private key to one, and allowing further conditions to be enforced on future transactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If candidate fields are repeatedly included in locking and unlocking scripts to enforce conditions, then condition enforcement capability is improved, but storage size and computational complexity increase significantly
Solution Approach 1:
The patent uses cryptographic hashing to create a compact representation (copy) of the candidate fields rather than including the full fields repeatedly. The locking script contains a hash of the candidate fields, and the unlocking script provides the original fields for verification. This copying approach enables condition enforcement while dramatically reducing storage size and computational overhead compared to storing full field data multiple times.
Solution Approach 2:
The patent transforms the candidate fields into a different parameter form through cryptographic hashing. Instead of storing and comparing large amounts of raw data, the system converts fields into fixed-size hash values that are computationally efficient to store and verify. This parameter transformation maintains the integrity of condition enforcement while reducing the computational complexity of script execution.
2Reliability
If candidate fields are repeatedly included in locking and unlocking scripts to enforce conditions, then condition enforcement capability is improved, but storage requirements increase
Solution Approach 1:
The patent implements a copying mechanism where instead of storing full candidate field data multiple times in locking and unlocking scripts, it stores a cryptographic hash (a compact copy) of the fields. The actual field data is stored once in the transaction data structure, and the hash serves as a space-efficient reference that enables verification without duplicating the full data.
Solution Approach 2:
The patent extracts only the essential verification information (cryptographic hash) from the full candidate fields and places it in the locking script. This extraction approach separates the verification function from the data storage function, allowing the locking script to be compact while still enabling complete condition enforcement through hash verification against the original fields.
3Reliability
If ephemeral private key is not fixed, then cryptographic security is maintained, but computational resources are consumed
Solution Approach 1:
The patent performs preliminary action by fixing the ephemeral private key to a predetermined value (1) in advance, before the actual cryptographic operations are needed. This preliminary decision eliminates the need for random key generation during transaction execution, significantly reducing computational resources. The security is maintained through the use of cryptographic hashing and proper signature verification mechanisms that compensate for the fixed key approach.
Data Source
AI summary
A computer-implemented method of enforcing conditions on a second blockchain transaction using a first blockchain transaction, wherein a first one of the conditions is that, when a first unlocking script of the second transaction is executed alongside a first locking script of the first transaction, a representation of the second transaction is output to memory, wherein the representation is based on a plurality of fields of the second transaction and a first output of the first transaction, and wherein the method comprises: generating the first transaction, wherein the first transaction comprises a first output, wherein the first output comprises the first locking script, and wherein the first locking script comprises: a message sub-script; a signature sub-script; a public key corresponding to a private key; and a verification sub-script.