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| 1 | +package libzkp |
| 2 | + |
| 3 | +/* |
| 4 | +#cgo LDFLAGS: -lzkp -lm -ldl -L${SRCDIR}/lib -Wl,-rpath=${SRCDIR}/lib |
| 5 | +#cgo gpu LDFLAGS: -lzkp -lm -ldl -lgmp -lstdc++ -lprocps -L/usr/local/cuda/lib64/ -lcudart -L${SRCDIR}/lib/ -Wl,-rpath=${SRCDIR}/lib |
| 6 | +#include <stdlib.h> |
| 7 | +#include "./../../../common/libzkp/interface/libzkp.h" |
| 8 | +*/ |
| 9 | +import "C" //nolint:typecheck |
| 10 | + |
| 11 | +import ( |
| 12 | + "fmt" |
| 13 | + "os" |
| 14 | + "unsafe" |
| 15 | +) |
| 16 | + |
| 17 | +// Helper function to convert Go string to C string and handle cleanup |
| 18 | +func goToCString(s string) *C.char { |
| 19 | + return C.CString(s) |
| 20 | +} |
| 21 | + |
| 22 | +// Helper function to free C string |
| 23 | +func freeCString(s *C.char) { |
| 24 | + C.free(unsafe.Pointer(s)) |
| 25 | +} |
| 26 | + |
| 27 | +// Initialize the verifier |
| 28 | +func InitVerifier(configJSON string) { |
| 29 | + cConfig := goToCString(configJSON) |
| 30 | + defer freeCString(cConfig) |
| 31 | + |
| 32 | + C.init_verifier(cConfig) |
| 33 | +} |
| 34 | + |
| 35 | +// Initialize the verifier |
| 36 | +func InitL2geth(configJSON string) { |
| 37 | + cConfig := goToCString(configJSON) |
| 38 | + defer freeCString(cConfig) |
| 39 | + |
| 40 | + C.init_l2geth(cConfig) |
| 41 | +} |
| 42 | + |
| 43 | +// Verify a chunk proof |
| 44 | +func VerifyChunkProof(proofData, forkName string) bool { |
| 45 | + cProof := goToCString(proofData) |
| 46 | + cForkName := goToCString(forkName) |
| 47 | + defer freeCString(cProof) |
| 48 | + defer freeCString(cForkName) |
| 49 | + |
| 50 | + result := C.verify_chunk_proof(cProof, cForkName) |
| 51 | + return result != 0 |
| 52 | +} |
| 53 | + |
| 54 | +// Verify a batch proof |
| 55 | +func VerifyBatchProof(proofData, forkName string) bool { |
| 56 | + cProof := goToCString(proofData) |
| 57 | + cForkName := goToCString(forkName) |
| 58 | + defer freeCString(cProof) |
| 59 | + defer freeCString(cForkName) |
| 60 | + |
| 61 | + result := C.verify_batch_proof(cProof, cForkName) |
| 62 | + return result != 0 |
| 63 | +} |
| 64 | + |
| 65 | +// Verify a bundle proof |
| 66 | +func VerifyBundleProof(proofData, forkName string) bool { |
| 67 | + cProof := goToCString(proofData) |
| 68 | + cForkName := goToCString(forkName) |
| 69 | + defer freeCString(cProof) |
| 70 | + defer freeCString(cForkName) |
| 71 | + |
| 72 | + result := C.verify_bundle_proof(cProof, cForkName) |
| 73 | + return result != 0 |
| 74 | +} |
| 75 | + |
| 76 | +// Generate a universal task |
| 77 | +func GenerateUniversalTask(taskType int, taskJSON, forkName string) (bool, string, string, []byte) { |
| 78 | + cTask := goToCString(taskJSON) |
| 79 | + cForkName := goToCString(forkName) |
| 80 | + defer freeCString(cTask) |
| 81 | + defer freeCString(cForkName) |
| 82 | + |
| 83 | + result := C.gen_universal_task(C.int(taskType), cTask, cForkName) |
| 84 | + defer C.release_task_result(result) |
| 85 | + |
| 86 | + // Check if the operation was successful |
| 87 | + if result.ok == 0 { |
| 88 | + return false, "", "", nil |
| 89 | + } |
| 90 | + |
| 91 | + // Convert C strings to Go strings |
| 92 | + universalTask := C.GoString(result.universal_task) |
| 93 | + metadata := C.GoString(result.metadata) |
| 94 | + |
| 95 | + // Convert C array to Go slice |
| 96 | + piHash := make([]byte, 32) |
| 97 | + for i := 0; i < 32; i++ { |
| 98 | + piHash[i] = byte(result.expected_pi_hash[i]) |
| 99 | + } |
| 100 | + |
| 101 | + return true, universalTask, metadata, piHash |
| 102 | +} |
| 103 | + |
| 104 | +// Generate wrapped proof |
| 105 | +func GenerateWrappedProof(proofJSON, metadata string, vkData []byte) string { |
| 106 | + cProofJSON := goToCString(proofJSON) |
| 107 | + cMetadata := goToCString(metadata) |
| 108 | + defer freeCString(cProofJSON) |
| 109 | + defer freeCString(cMetadata) |
| 110 | + |
| 111 | + // Create a C array from Go slice |
| 112 | + cVkData := (*C.char)(unsafe.Pointer(&vkData[0])) |
| 113 | + |
| 114 | + resultPtr := C.gen_wrapped_proof(cProofJSON, cMetadata, cVkData, C.size_t(len(vkData))) |
| 115 | + if resultPtr == nil { |
| 116 | + return "" |
| 117 | + } |
| 118 | + |
| 119 | + // Convert result to Go string and free C memory |
| 120 | + result := C.GoString(resultPtr) |
| 121 | + C.release_string(resultPtr) |
| 122 | + |
| 123 | + return result |
| 124 | +} |
| 125 | + |
| 126 | +// Dumps a verification key to a file |
| 127 | +func DumpVk(forkName, filePath string) error { |
| 128 | + cForkName := goToCString(forkName) |
| 129 | + cFilePath := goToCString(filePath) |
| 130 | + defer freeCString(cForkName) |
| 131 | + defer freeCString(cFilePath) |
| 132 | + |
| 133 | + // Call the C function to dump the verification key |
| 134 | + C.dump_vk(cForkName, cFilePath) |
| 135 | + |
| 136 | + // Check if the file was created successfully |
| 137 | + // Note: The C function doesn't return an error code, so we check if the file exists |
| 138 | + if _, err := os.Stat(filePath); os.IsNotExist(err) { |
| 139 | + return fmt.Errorf("failed to dump verification key: file %s was not created", filePath) |
| 140 | + } |
| 141 | + |
| 142 | + return nil |
| 143 | +} |
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