Homomorphic encryption service code translation method, device and equipment and readable storage medium

The invention discloses a homomorphic encryption service code translation method, device and equipment and a computer readable storage medium, and relates to the technical field of information security, the method comprises the following steps: obtaining a to-be-translated code, the to-be-translated code being a code formed by compiling a computational logic in a homomorphic encryption service in a computational expression form; converting the to-be-translated code into a directed acyclic graph representing computational logic of a computational expression; obtaining an algorithm decision index value by traversing the directed acyclic graph, and determining a to-be-called target homomorphic encryption algorithm from various preset homomorphic encryption algorithm libraries according to the algorithm decision index value; and optimizing the directed acyclic graph according to a preset optimization strategy, and calling the target homomorphic encryption algorithm according to the optimized directed acyclic grap