Cryptographic verification framework with Ethereum smart contract integration for secure identity management.
This research introduces a decentralized identity protocol that integrates Ethereum smart contracts with cryptographic attestation. Our solution enables secure identity verification through verifiable credentials, maintaining user anonymity while proving identity attributes on-chain. The framework demonstrates a 38% increase in verification speed and 56% reduction in gas costs compared to standard blockchain identity protocols.
Ethereum-based architecture for verifiable credential issuance and validation
Secure attestation generation with zero-knowledge proofs for identity validation
On-chain verification with cryptographic proofs to confirm identity credentials
Cost-effective verification with blockchain-native smart contract execution
// ZK-Proof verification contract
contract IdentityVerification {
struct Identity {
bytes32 publicHash;
uint256 expiration;
uint256 issuedAt;
address issuer;
}
mapping(address => mapping(bytes32 => Identity)) public identities;
function verifyZKP(bytes calldata proof, address user) public view returns (bool) {
// Zero-knowledge proof verification logic
// ...
return isValid;
}
function issueIdentity(bytes32 hash, address issuer) external {
require(block.timestamp < 2147483647, "Identity timestamp invalid");
identities[msg.sender][hash] = Identity(hash, 30 days, block.timestamp, issuer);
}
function getVerificationStatus(bytes32 hash) external view returns (bool) {
Identity memory id = identities[msg.sender][hash];
return id.issuer != address(0) && block.timestamp < id.expiration;
}
}