Sharing　data　through　the　public　cloud　has　turned　into　a　popular　way　to　exploit　the　data　value　today,　and　ciphertext-policy　attribute-based　encryption　(CP-ABE)　can　protect　data　confidentiality　while　improving　sharing　efficiency.　In　CP-ABE,　attribute　change　raises　the　issue　of　revocation,　which　is　solved　by　a　third　party　in　the　existing　schemes.　However,　it　cannot　achieve　timely　and　certain　revocation.　Thus,　this　paper　proposes　a　blockchain-driven　revocable　CP-ABE　scheme.　We　design　a　re-writable　blockchain　to　realize　attribute　revocation,　and　the　ciphertext　no　longer　needs　to　be　updated.　Attribute　authority　only　needs　to　update　an　update　factor　bound　to　the　attribute　and　the　private　keys　for　non-revoked　users,　while　the　revoked　users　cannot　recover　the　outdated　ciphertext.　Moreover,　our　scheme　is　selectively　secure　and　collusion　resistant.　Compared　with　other　schemes,　the　performance　of　our　scheme　is　satisfactory.　©　2023,　The　Author(s),　under　exclusive　license　to　Springer　Nature　Singapore　Pte　Ltd.