MeID Introduction

Decentralized Identity and credential management solutions have gained popularity in recent years due to their potential to provide greater privacy, security, and control over personal data compared to traditional centralized systems. However, some issues with existing decentralized identity solutions remain unaddressed. Here are some of the key challenges:

One of these issues is identity cloning, where attackers can easily create fake identities that are identical to real ones, posing a serious security threat.

Another issue is the bundling problem, where multiple identities are linked together, making it difficult to manage them separately.

Scalability is another significant challenge for many decentralized identity solutions, requiring significant computational resources to operate.

Compatibility with legacy systems is also essential for decentralized identity solutions to be widely adopted. Achieving identity interoperability becomes crucial to ensure that identities can be seamlessly shared and used across different platforms.

Sybil attacks are a significant challenge for many decentralized identity solutions, allowing attackers to create multiple fake identities to carry out malicious activities.

Ensuring accountability is critical for decentralized identity solutions, allowing users to hold other parties accountable for their actions. However, many solutions lack the ability to enforce accountability.

There are several rules that must be followed when issuing and verifying credentials in a decentralized identity system to ensure that credentials issued and verified in a decentralized identity system are secure, trustworthy, and privacy-preserving:

Identity Verification: Before issuing a credential, the issuer must verify the identity of the individual to whom the credential will be issued. This can be done through a variety of methods, such as in-person verification, document verification, or digital identity verification.

• Credential Issuance: Once the issuer has verified the individual's identity, they can issue a verifiable credential that includes the necessary claims and metadata. The credential must conform to the Verifiable Credential Data Model standard and any custom extensions specified by the network.

• Cryptographic Proofs: The credential must include a cryptographic proof, such as a digital signature or zero-knowledge proof, that allows the recipient of the credential to verify its authenticity and integrity.

• Revocation: The issuer must have the ability to revoke a credential if it is no longer valid or if the individual to whom the credential was issued no longer has the right to use it. Revocation must be done in a way that does not compromise the privacy or security of the individual.

• Verification: When verifying a credential, the recipient must use the cryptographic proof included with the credential to ensure its authenticity and integrity. The recipient must also verify that the credential was issued by a trusted party and that it has not been revoked.

In conclusion, addressing the issues of identity cloning, bundling, scalability, interoperability, sybil-resistance, and accountability will be critical for the widespread adoption of decentralized identity and credential management solutions in the web3 ecosystem. The proposed solutions discussed in literature are steps towards addressing these issues and provide insights for future research in this field.

The "One Face, One DID" concept is a powerful tool in the fight against bots and sybil attacks. By requiring users to verify their identity through facial recognition, zkMe ensures that each user has a unique DID. This makes it much more difficult for bad actors to create multiple accounts and manipulate the system. With zkMe, businesses can be confident that their interactions are with real people, and not bots or fake accounts.


Build a secure, trusted and high quality community

  • Prevent abusive behavior

zkMe DID is a system that proves you are a real and unique person while fully protecting your privacy. At the same time, it can prevent sybil attacks on chains and communities.

  • Establish new governance models

Using token-based voting can prevent Sybil attacks, but it can create non-democratic models and low community engagement. One Face, One DID system can help transition to a secure one person, one vote system.

  • Ensure fair reward systems

zkMe DID guarantees a fair and safe system by rewarding real community members which creates increased engagement and a healthier community.

Why choose zkMe DID for Anti-Sybil / Anti-Bot protection?

  • Private-by-Design: Protect user privacy with full homomorphic encryption.

  • Instant Check: Quickly verify accuracy and effectiveness.

  • Reusable: One-time verification, repeatable use.

Applications to benefit

In web3, due to its decentralized nature and the importance of digital identities, preventing sybil'ed fake identities and bot identities is particularly crucial. Here are some scenarios that may require prevention of fake identities and bot identities:

Voting: In a decentralized voting system, the security and accuracy of voting are critical. If someone can forge or tamper with a voting identity, the entire voting system will be compromised. Therefore, preventing fake identities and bot identities is essential.

Social media: In Web3, social media platforms can be more decentralized, and users have more control over their data. This means that users can better protect their privacy and data, but also need to prevent fake identities and bot identities to maintain the health and fairness of the platform.

Airdrop events: Airdrop events are a widely used marketing method in the cryptocurrency community. By distributing free tokens or token rewards to users, airdrops promote the use and promotion of tokens. However, if airdrop events do not prevent fake identities and bot identities, the real beneficiaries of the tokens may be unable to obtain them, and instead, they may be snatched by fake identities and bots.

Games and virtual reality applications: In decentralized games and virtual reality applications, preventing fake identities and bot identities can ensure the security and fairness of the in-game economy. For example, in some games, players can trade virtual items and tokens. Without preventing fake identities and bot identities, it may lead to the devaluation of virtual items.

Blockchain identity management system: The blockchain identity management system can help manage individuals' digital identities to ensure the security of personal identity information and prevent fake identities and bot identities. For example, in a decentralized healthcare system, the blockchain identity management system can ensure that only authorized healthcare providers can access patient medical records.

Charitable donations: In a decentralized charitable donation platform, preventing fake identities and bot identities can ensure the fairness and transparency of charitable donations. For example, on some platforms, donors can choose to allocate donation funds to different charitable organizations. If fake identities and bot identities are not prevented, it may lead to the theft of donation funds or their use for illegal purposes.

Blockchain identity verification: Blockchain identity verification can help protect the security of the blockchain network, prevent illegal network attacks and intrusions. For example, in some decentralized exchanges, blockchain identity verification can ensure that only authorized users can conduct transactions, preventing hacker attacks and unauthorized access.

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