Controlled mutability refers to the ability to modify data on a blockchain under specific, predefined conditions. This approach allows for intentional, authorized changes to ledger entries, unlike traditional blockchains which are generally immutable. Such modifications are typically governed by smart contracts or multi-signature mechanisms. It represents a deviation from absolute immutability, offering practical flexibility.
Context
The concept of controlled mutability is a key discussion point for enterprise blockchain solutions and regulatory compliance. It addresses concerns about data correction, legal mandates for data deletion, or upgrades to token standards. While enhancing utility for certain applications, it introduces complexities regarding transparency and the trust model of the underlying system.
Chameleon hashing with a trapdoor key enables controlled data modification on immutable ledgers, resolving the conflict between data compliance and chain integrity.
Introducing authorized, provable data modification into the immutable ledger paradigm bridges the gap between theoretical security and real-world regulatory necessity.
Redactable blockchains introduce controlled data modification through cryptographic primitives like chameleon hashes, bridging immutability with critical regulatory compliance and operational flexibility.
Redactable blockchains introduce controlled data mutability via cryptographic primitives, unlocking compliance and flexibility for real-world applications.
This research surveys how cryptographic mechanisms, primarily chameleon hash functions, enable auditable data modification within blockchains, balancing immutability with regulatory needs.
This research introduces controlled data modification into blockchains, leveraging cryptographic primitives like chameleon hashes to reconcile immutability with regulatory compliance and dynamic data needs.
This research introduces redactable blockchains, leveraging chameleon hash functions to enable controlled, auditable data modification while preserving ledger integrity for regulatory compliance and error correction.
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