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Non Backward compatible improvements (Hidden address shuffling (Blind…
Non Backward compatible improvements
Hidden address shuffling
Blind Signatures
which output address corresponds to which input address remains hidden.
Improvements
Added opcodes and new signature types
Group Signatures
Ring Signatures
There is no group manager
any member of group can sign the transaction and no one can recognize the user using Ring signature.
Composite signatures
computationally hard to obtain individual signatures from the composite signature
combines a number of individual signatures in unordered manner
Multiple transactions are combined into a larger transaction using composite signatures
Ownership shuffling
break coin and ownership connection while maintaining a record of who owns how much coins
achieved utilizing zero knowledge proofs
Transaction breaker & Not hiding amounts
Transaction breaker & hiding amounts
Data encryption
Homomorphic commitments are used for
encryption
allow committing a value without revealing it
to the other parties
Data disintegration
Data is disintegrated and stored in blockchain partially
Data that is not stored in blockchain remains off-chain
e.g. blockchain for storing only hash of the transactions