GDPR and LPD: How Takamaka Ensures Data Confidentiality and Integrity on the Blockchain

Compliance with the GDPR (General Data Protection Regulation) and the Swiss LPD (Data Protection Act) represents a fundamental challenge for companies wishing to use blockchain technology. The immutable and transparent nature of blockchain can conflict with data privacy regulations like GDPR and LPD, which impose strict requirements on confidentiality, integrity, and the protection of personal information. However, Takamaka offers an innovative solution that combines security, transparency, and regulatory compliance in a single product. One of the main obstacles is managing the right to be forgotten, which allows individuals to request the deletion of their personal data. The blockchain, by its nature, makes it difficult to modify or delete data once it has been recorded. Moreover, the transparency of blockchain could expose personal data to unauthorized access, violating GDPR and LPD rules.

Challenges of Public Blockchain with GDPR and LPD Public blockchains, such as Bitcoin and Ethereum, are designed to be transparent and immutable, allowing anyone to access stored data. This approach, while powerful for transparency, presents significant issues when it comes to personal and confidential data. Uploading sensitive data to a public blockchain can lead to privacy violations, exposure of trade secrets, and compromise of business negotiations' confidentiality.

Why Encrypting Data is Not a Definitive Solution Encrypting content on the public blockchain might seem like a solution, but it has several vulnerabilities. The encryption key could be made public, either intentionally or by mistake, or the encryption algorithm could be compromised over time. Additionally, both GDPR and LPD require that personal data can be deleted upon request, a concept that conflicts with blockchain's immutability.

Takamaka's Integrated Solution Takamaka addresses these challenges with an integrated approach that combines the management of the public and private parts of the data. This solution allows for the benefits of blockchain, such as security and transparency, without compromising privacy and confidentiality.

• Management of Public and Private Parts: Takamaka uses a hybrid structure that allows sensitive data to be stored on a private blockchain, accessible only to authorized entities. Only non-sensitive data and cryptographic references are stored on the public blockchain, ensuring that confidential information remains protected.
• Integration and Compliance with GDPR and LPD: Takamaka's architecture allows for easy integration with existing corporate infrastructures, ensuring that data is managed in compliance with GDPR and LPD. Companies can ensure that personal data is handled confidentially and can be deleted or modified upon request, thus meeting regulatory requirements.
• Data Security and Integrity: By using advanced encryption techniques and rigorous security protocols, Takamaka ensures that stored data is protected from unauthorized access and manipulation. The combination of public and private blockchain ensures that only necessary information is publicly visible, while sensitive data is securely stored.
• Confidentiality of Communications: Business negotiations and trade secrets can be protected using Takamaka's private blockchain. Only authorized parties can access this information, ensuring that confidential communications remain secure.

Conclusion Compliance with GDPR and LPD, in addition to protecting sensitive data, represents a significant challenge in adopting blockchain technology. Takamaka offers an innovative solution that integrates the management of public and private data, ensuring confidentiality, security, and regulatory compliance. With Takamaka, companies can leverage the benefits of blockchain without compromising the privacy and integrity of their information.