The document proposes a privacy-preserving big data access management system that hides entire attributes in access policies, rather than just attribute values. It uses ciphertext-policy attribute-based encryption (CP-ABE) and designs a unique Attribute Bloom Filter to determine if an attribute is in the access policy and find its exact position. The system encrypts data using the Advanced Encryption Standard algorithm and uses the Attribute Bloom Filter to help with decryption by checking attributes against the anonymous access policy. This allows efficient and secure big data access management while preserving users' privacy in their access policies.