To address challenges associated with threshold-based multi-authority ciphertext-policy attribute-based encryption (MA-CP-ABE). such as untrusted attribute authorities (AA) and the inability to verify the correctness of attribute private keys publicly. a key public verifiable MA-CP-ABE scheme based on aggregatable publicly verifiable secret sharing (PVSS) and consortium blockchain was... https://parisnaturalfoodes.shop/product-category/niacin-no-flush/