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This commit: + Adds support for a protocol which enables inter-op between concrete, tfhe-rs and potentially other contributors to the fhe ecosystem. + Gets rid of hand-made serialization in the compiler, and client/server libs. + Refactors client/server libs to allow more pre/post processing of circuit inputs/outputs. The protocol is supported by a definition in the shape of a capnp file, which defines different types of objects among which: + ProgramInfo object, which is a precise description of a set of fhe circuit coming from the same compilation (understand function type information), and the associated key set. + *Key objects, which represent secret/public keys used to encrypt/execute fhe circuits. + Value object, which represent values that can be transferred between client and server to support calls to fhe circuits. The hand-rolled serialization that was previously used is completely dropped in favor of capnp in the whole codebase. The client/server libs, are refactored to introduce a modular design for pre-post processing. Reading the ProgramInfo file associated with a compilation, the client and server libs assemble a pipeline of transformers (functions) for pre and post processing of values coming in and out of a circuit. This design properly decouples various aspects of the processing, and allows these capabilities to be safely extended. In practice this commit includes the following: + Defines the specification in a concreteprotocol package + Integrate the compilation of this package as a compiler dependency via cmake + Modify the compiler to use the Encodings objects defined in the protocol + Modify the compiler to emit ProgramInfo files as compilation artifact, and gets rid of the bloated ClientParameters. + Introduces a new Common library containing the functionalities shared between the compiler and the client/server libs. + Introduces a functional pre-post processing pipeline to this common library + Modify the client/server libs to support loading ProgramInfo objects, and calling circuits using Value messages. + Drops support of JIT. + Drops support of C-api. + Drops support of Rust bindings. Co-authored-by: Nikita Frolov <nf@mkmks.org>
103 lines
2.8 KiB
C++
103 lines
2.8 KiB
C++
// Part of the Concrete Compiler Project, under the BSD3 License with Zama
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// Exceptions. See
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// https://github.com/zama-ai/concrete-compiler-internal/blob/main/LICENSE.txt
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// for license information.
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#ifndef CONCRETELANG_SERVERLIB_SERVER_LAMBDA_H
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#define CONCRETELANG_SERVERLIB_SERVER_LAMBDA_H
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#include "boost/outcome.h"
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#include "concrete-protocol.capnp.h"
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#include "concretelang/Common/Error.h"
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#include "concretelang/Common/Keysets.h"
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#include "concretelang/Common/Protocol.h"
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#include "concretelang/Common/Transformers.h"
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#include "concretelang/Common/Values.h"
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#include "llvm/ADT/ArrayRef.h"
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#include <cassert>
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#include <dlfcn.h>
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#include <functional>
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#include <memory>
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#include <vector>
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using concretelang::keysets::ServerKeyset;
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using concretelang::transformers::ArgTransformer;
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using concretelang::transformers::ReturnTransformer;
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using concretelang::transformers::TransformerFactory;
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using concretelang::values::Value;
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namespace concretelang {
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namespace serverlib {
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/// A smart pointer to a dynamic module.
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class DynamicModule {
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friend class ServerCircuit;
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public:
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~DynamicModule();
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static Result<std::shared_ptr<DynamicModule>>
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open(const std::string &outputPath);
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private:
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void *libraryHandle;
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};
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class ServerCircuit {
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friend class ServerProgram;
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public:
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/// Call the circuit with public arguments.
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Result<std::vector<TransportValue>> call(const ServerKeyset &serverKeyset,
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std::vector<TransportValue> &args);
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Result<std::vector<TransportValue>>
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simulate(std::vector<TransportValue> &args);
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/// Returns the name of this circuit.
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std::string getName();
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private:
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ServerCircuit() = default;
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static Result<ServerCircuit>
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fromDynamicModule(const Message<concreteprotocol::CircuitInfo> &circuitInfo,
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std::shared_ptr<DynamicModule> dynamicModule,
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bool useSimulation);
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void invoke(const ServerKeyset &serverKeyset);
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Message<concreteprotocol::CircuitInfo> circuitInfo;
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bool useSimulation;
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void (*func)(void *...);
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std::shared_ptr<DynamicModule> dynamicModule;
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std::vector<ArgTransformer> argTransformers;
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std::vector<ReturnTransformer> returnTransformers;
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std::vector<Value> argsBuffer;
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std::vector<Value> returnsBuffer;
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std::vector<size_t> argDescriptorSizes;
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std::vector<size_t> returnDescriptorSizes;
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size_t argRawSize;
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size_t returnRawSize;
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};
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/// ServerProgram contains multiple
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class ServerProgram {
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public:
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/// Loads a server program from a shared lib path essentially.
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static Result<ServerProgram>
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load(const Message<concreteprotocol::ProgramInfo> &programInfo,
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const std::string &outputPath, bool useSimulation);
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Result<ServerCircuit> getServerCircuit(const std::string &circuitName);
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private:
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ServerProgram() = default;
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std::vector<ServerCircuit> serverCircuits;
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};
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} // namespace serverlib
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} // namespace concretelang
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#endif
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