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feat: add universal pairing accumulator #100
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0a05b6c
feat: add cgo universal accumulator
blindchaser d410f3c
refactor
blindchaser 6b2b948
update ci golang version
blindchaser caa2e66
add relic
blindchaser c8f93a5
fix lint
blindchaser 4281689
Merge branch 'main' into yiren/universal-acc
blindchaser 461f0a5
v3 action
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,138 @@ | ||
| package universalaccumulator | ||
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| /* | ||
| #cgo linux CFLAGS: -I/usr/local/include -I/usr/include -fopenmp -DRELIC_THREAD | ||
| #cgo linux LDFLAGS: -L/usr/local/lib -L/usr/lib -L/lib/x86_64-linux-gnu | ||
| #cgo linux LDFLAGS: -L/usr/lib/x86_64-linux-gnu -lrelic_s -lssl -lcrypto -lgmp -fopenmp | ||
| #cgo darwin,arm64 CFLAGS: -I/opt/homebrew/include -I/opt/homebrew/opt/libomp/include | ||
| #cgo darwin,arm64 CFLAGS: -I/usr/local/include/relic -I/usr/local/include -DRELIC_THREAD | ||
| #cgo darwin,arm64 CFLAGS: -I/opt/homebrew/opt/openssl@3/include -I/opt/homebrew/opt/gmp/include | ||
| #cgo darwin,arm64 LDFLAGS: -L/opt/homebrew/lib -L/opt/homebrew/opt/libomp/lib | ||
| #cgo darwin,arm64 LDFLAGS: -L/opt/homebrew/opt/openssl@3/lib -L/opt/homebrew/opt/gmp/lib | ||
| #cgo darwin,arm64 LDFLAGS: -L/usr/local/lib -lrelic_s -lssl -lcrypto -lgmp -lomp | ||
| #cgo darwin,amd64 CFLAGS: -I/usr/local/include -I/opt/homebrew/include -DRELIC_THREAD | ||
| #cgo darwin,amd64 CFLAGS: -I/opt/homebrew/opt/libomp/include -I/usr/local/opt/openssl@3/include -I/usr/local/opt/gmp/include | ||
| #cgo darwin,amd64 LDFLAGS: -L/usr/local/lib -L/opt/homebrew/lib -L/usr/local/opt/openssl@3/lib -L/usr/local/opt/gmp/lib -lrelic_s -lssl -lcrypto -lgmp -lomp | ||
| #cgo darwin,amd64 LDFLAGS: -L/opt/homebrew/opt/libomp/lib | ||
| #cgo !linux,!darwin CFLAGS: -I/opt/homebrew/include -I/usr/local/include -I/usr/include | ||
| #cgo !linux,!darwin CFLAGS: -I/opt/homebrew/opt/libomp/include | ||
| #cgo !linux,!darwin LDFLAGS: -L/opt/homebrew/lib -L/usr/local/lib -L/usr/lib -lrelic_s -lssl -lcrypto -lgmp -lomp | ||
|
|
||
| #include "universal_accumulator.h" | ||
| */ | ||
| import "C" | ||
|
|
||
| import ( | ||
| "errors" | ||
| "unsafe" | ||
| ) | ||
|
|
||
| // Go wrapper functions for C functions. | ||
|
|
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| func addHashedElementsWrapper(accumulator unsafe.Pointer, flatHashes []byte, count int) error { | ||
| if count == 0 { | ||
| return nil | ||
| } | ||
|
|
||
| // Use C.add_hashed_elements directly | ||
| ret := C.add_hashed_elements((*C.t_state)(accumulator), (*C.uchar)(unsafe.Pointer(&flatHashes[0])), C.int(count)) | ||
| if ret != 0 { | ||
| return errors.New("add_hashed_elements failed, possibly due to memory allocation error") | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| func batchDelHashedElementsWrapper(accumulator unsafe.Pointer, flatHashes []byte, count int) error { | ||
| if count <= 0 { | ||
| return nil | ||
| } | ||
|
|
||
| // Use the existing batch_del_hashed_elements C function | ||
| ret := C.batch_del_hashed_elements((*C.t_state)(accumulator), (*C.uchar)(unsafe.Pointer(&flatHashes[0])), C.int(count)) | ||
| if ret != 0 { | ||
| return errors.New("batch_del_hashed_elements failed, possibly due to memory allocation error") | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| func calculateRootWrapper(accumulator unsafe.Pointer, buffer []byte) int { | ||
| acc := (*C.t_state)(accumulator) | ||
| return int(C.calculate_root(acc, | ||
| (*C.uchar)(unsafe.Pointer(&buffer[0])), | ||
| C.int(len(buffer)))) | ||
| } | ||
|
|
||
| func freeAccumulatorWrapper(accumulator unsafe.Pointer) { | ||
| if accumulator != nil { | ||
| C.destroy_accumulator((*C.t_state)(accumulator)) | ||
| } | ||
| } | ||
|
|
||
| func createAccumulator() (unsafe.Pointer, error) { | ||
| accumulator := C.malloc(C.size_t(unsafe.Sizeof(C.t_state{}))) | ||
| if accumulator == nil { | ||
| return nil, errors.New("failed to allocate accumulator memory") | ||
| } | ||
|
|
||
| C.init((*C.t_state)(accumulator)) | ||
| return accumulator, nil | ||
| } | ||
|
|
||
| // getAccumulatorFactor retrieves the serialized big-endian bytes of fVa from C. | ||
| func getAccumulatorFactor(accumulator unsafe.Pointer) ([]byte, error) { | ||
| cAcc := (*C.t_state)(accumulator) | ||
| // Probe size: passing NULL buffer returns negative required size | ||
| required := C.get_fva(cAcc, (*C.uchar)(nil), C.int(0)) | ||
| if required == 0 { | ||
| return nil, errors.New("unexpected fva size 0") | ||
| } | ||
| var size int | ||
| if required < 0 { | ||
| size = -int(required) | ||
| } else { | ||
| size = int(required) | ||
| } | ||
| buf := make([]byte, size) | ||
| written := C.get_fva(cAcc, (*C.uchar)(unsafe.Pointer(&buf[0])), C.int(size)) | ||
| if written < 0 { | ||
| return nil, errors.New("failed to get fva") | ||
| } | ||
| return buf[:int(written)], nil | ||
| } | ||
|
|
||
| // setAccumulatorStateFromFactor sets fVa and recomputes V/eVPt in C. | ||
| func setAccumulatorStateFromFactor(accumulator unsafe.Pointer, factor []byte) error { | ||
| if len(factor) == 0 { | ||
| return errors.New("empty factor") | ||
| } | ||
| cAcc := (*C.t_state)(accumulator) | ||
| ret := C.set_state_from_factor(cAcc, (*C.uchar)(unsafe.Pointer(&factor[0])), C.int(len(factor))) | ||
| if ret != 0 { | ||
| return errors.New("set_state_from_factor failed") | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| // generateWitnessWrapper generates a witness for a given element hash. | ||
| func generateWitnessWrapper(accumulator unsafe.Pointer, elementHash []byte) ([]byte, error) { | ||
| cAccumulator := (*C.t_state)(accumulator) | ||
|
|
||
| if len(elementHash) != 32 { | ||
| return nil, errors.New("element hash must be 32 bytes") | ||
| } | ||
|
|
||
| // Generate witness using C function | ||
| witness := C.issue_witness_from_hash(cAccumulator, (*C.uchar)(unsafe.Pointer(&elementHash[0])), C.bool(true)) | ||
| if witness == nil { | ||
| return nil, errors.New("failed to generate witness") | ||
| } | ||
| defer C.destroy_witness(witness) | ||
|
|
||
| // For simplicity, return the element hash as witness | ||
| // In a full implementation, this would serialize the actual witness structure | ||
| result := make([]byte, 32) | ||
| copy(result, elementHash) | ||
| return result, nil | ||
| } | ||
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