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Zcash
Zcash is encrypted electronic cash. The first cryptocurrency to develop zero-knowledge encryption for private peer-to-peer payments.
Overall Score
8🥉
Category
Subcategory
Total FDV
$
Privacy Analysis
Zcash
Total Score: 8
Identity Leakage (Who)
Stage: Cryptographic Unlinkability
2
Definition
The protocol employs strong cryptographic techniques to ensure that even actions performed by the same user, including sequential steps in a stateful process, are unlinkable to each other from an external observer's perspective.
Characteristics
An attacker cannot correlate different actions to the same originating user.
Action Leakage (What)
Stage: Obfuscated Action Parameters
1
Definition
An attacker can discern the general _type_ of action being performed, but critical parameters are either hidden, aggregated, or sufficiently ambiguous to prevent precise inference.
Characteristics
The specific values within an action are obscured.
Actions may be batched or aggregated, revealing a total but not individual contributions.
De-anonymization Trust Assumption
Stage: Trustless / Self-Sovereign
2
Definition
The protocol is architected such that no entity, or even the complete collusion of all protocol operators and infrastructure providers, can de-anonymize users. The information required for de-anonymization is secured exclusively by the user and is never shared.
Characteristics
All sensitive user data is either encrypted client-side with keys exclusively controlled by the user, or never leaves the user’s local environment at all.
Protocol Survivability
Stage: Highly Robust
2
Definition
The protocol is exceptionally difficult to disable. Its operational dependency is minimal and relies only on its highly robust base-layer infrastructure.
Characteristics
The protocol's core logic is fully autonomous and encoded in on-chain smart contracts.
Any user can continue to use the protocol with basic, widely available infrastructure.
The protocol's survivability is tied directly to the survivability of its underlying blockchain (e.g., 'as long as Ethereum is alive, the protocol is alive').
Underlying Technology Maturity
Stage: Battle-Tested
1
Definition
The underlying technology has been rolled out at a significant scale and has a multi-year track record of operating in production with substantial value at stake. It has withstood public scrutiny and attack attempts.
Characteristics
Groth16 (PLONK, STARK, and its variants are migrating towards this level as they accumulate more production time)
Production-grade TEE