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Cloud Key Management and Oracle TDE

Cloud Key Management Cloud Encryption Cloud Database security  key 187X250 Cloud Key Management and Oracle TDEEncryption of databases is a must for compliance, privacy and security. The major databases have built-in encryption capabilities. Specifically, Oracle has a built-in Transparent Data Encryption capability.

As cloud computing evolves, these features are being used to try and create secure cloud database solutions enjoying cloud encryption. TDE is a basic building block for such solutions; however, in the cloud, TDE needs some enhancement, specifically around cloud key management.

Like any cloud encryption mechanism, TDE needs encryption keys. The master encryption key is fed into TDE from a mechanism called a “wallet”. The Oracle wallet needs to be stored somewhere and storing it securely in the cloud raises a host of issues.

In principal, the oracle wallet can be stored in a file system, but by itself that is not a secure cloud solution. The most secure way to store the wallet is through split-key encryption and homomorphic key management – this means that the master key to your Oracle database is actually never stored anywhere in the cloud. Split-key encryption, in this context, means that the Oracle TDE master key is itself split into two key shares. Homomorphic encryption of these key shares means that the key shares are encrypted even when in use in the cloud, so they do not offer an attack surface at any moment.

These are cutting edge solutions, yet happily they are beginning to be available in the market. The integration of Oracle TDE’s wallet with Porticor’s homomorphic key management technology provides a cloud solution which is as secure as a physical data center, completely in the cloud. The physical walls are constructed through mathematics.

The post Cloud Key Management and Oracle TDE appeared first on Porticor Cloud Security.

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More Stories By Gilad Parann-Nissany

Gilad Parann-Nissany, Founder and CEO at Porticor is a pioneer of Cloud Computing. He has built SaaS Clouds for medium and small enterprises at SAP (CTO Small Business); contributing to several SAP products and reaching more than 8 million users. Recently he has created a consumer Cloud at G.ho.st - a cloud operating system that delighted hundreds of thousands of users while providing browser-based and mobile access to data, people and a variety of cloud-based applications. He is now CEO of Porticor, a leader in Virtual Privacy and Cloud Security.

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