Data-encryption-based purpose-specific access control

A method, apparatus and product for data-encryption-based purpose-specific access control. The method comprising: having data of a subject, wherein an approval for usage of the data for a purpose is provided; obtaining an encryption key associated with the purpose, wherein a decryption key is required for decrypting information encrypted with the encryption key; encrypting the data using the encryption key, whereby obtaining purpose-based encrypted data that is encoded with the purpose for which the data can be used; and enabling access to the purpose-based encrypted data to one or more data consumers, whereby access to the data is obtainable by decrypting the purpose-based encrypted data using the decryption key that is available to data consumers that are certified for the purpose.