cpabe

v 0.11

ciphertext-policy attribute-based encryption toolkit

The cpabe toolkit provides a set of programs implementing a ciphertext-policy attribute-based encryption scheme. In a ciphertext policy attribute-based encryption scheme, each user's private key is associated with a set of attributes representing their capabilities, and a ciphertext is encrypted such that only users whose attributes satisfy a certain policy can decrypt. For example, we can encrypt a ciphertext such that in a company it can only be decrypted by a someone with attributes Senior and Human Resources or has the attribute Executive. One interesting application of this tool is that we can do Role-Based Access Control (RBAC) without requiring trusted data storage.

The cpabe toolkit provides a set of programs implementing a ciphertext-policy attribute-based encryption scheme. In a ciphertext policy attribute-based encryption scheme, each user's private key is associated with a set of attributes representing their capabilities, and a ciphertext is encrypted such that only users whose attributes satisfy a certain policy can decrypt. For example, we can encrypt a ciphertext such that in a company it can only be decrypted by a someone with attributes Senior and Human Resources or has the attribute Executive. One interesting application of this tool is that we can do Role-Based Access Control (RBAC) without requiring trusted data storage.

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http://acsc.cs.utexas.edu/cpabe/