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c-kzg-4844
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revert to using c

This commit is contained in:
Stefan Bratanov 2022-11-23 18:37:46 +00:00
parent c6fc155060
commit a05211c23c
4 changed files with 27 additions and 21 deletions
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1
bindings/java/.gitignore vendored
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@ -1,3 +1,4 @@
lib/
*.class
*.o
*.a

2
bindings/java/CKzg4844JNI.java
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@ -23,7 +23,7 @@ public class CKzg4844JNI {
public static native boolean verifyAggregateKzgProof(byte[] blobs, byte[] commitments, int count,
byte[] proof);
public static native byte[] blobToKzgCommitment(byte[] commitment);
public static native byte[] blobToKzgCommitment(byte[] blob);
public static native boolean verifyKzgProof(byte[] commitment, byte[] z, byte[] y, byte[] proof);

14
bindings/java/README.md
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@ -1,22 +1,24 @@
# Build Shared Library
## Prerequisites
* libblst.a is available in ../../blst/ directory. Follow the instructions in the home README.md.
* JAVA_HOME environment variable is set.
## Windows
```bat
g++ -c -I..\..\blst\bindings -I..\..\src\ -I"%JAVA_HOME%\include" -I"%JAVA_HOME%\include\win32" c_kzg_4844_jni.cpp -o c_kzg_4844_jni.o
g++ -shared -o lib/ckzg4844jni.dll c_kzg_4844.o c_kzg_4844_jni.o -Wl,--add-stdcall-alias
TBC
```
## Linux
```bash
g++ -c -fPIC -I../../blst/bindings -I../../src/ -I${JAVA_HOME}/include -I${JAVA_HOME}/include/linux c_kzg_4844_jni.cpp -o c_kzg_4844_jni.o
g++ -shared -fPIC -o lib/libckzg4844jni.so c_kzg_4844.o c_kzg_4844_jni.o -lc
clang -O -Wall -shared -fPIC -I../../blst/bindings -I../../src/ -I${JAVA_HOME}/include -I${JAVA_HOME}/include/linux -o lib/libckzg4844jni.so c_kzg_4844_jni.c ../../src/c_kzg_4844.c ../../blst/libblst.a
```
## Mac-OS
```bash
g++ -c -fPIC -I../../blst/bindings -I../../src/ -I${JAVA_HOME}/include -I${JAVA_HOME}/include/darwin c_kzg_4844_jni.cpp -o c_kzg_4844_jni.o
g++ -dynamiclib -o lib/libckzg4844jni.dylib c_kzg_4844.o c_kzg_4844_jni.o -lc
TBC
```

29
bindings/java/c_kzg_4844_jni.cpp → bindings/java/c_kzg_4844_jni.c
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@ -1,3 +1,4 @@
#include <stdlib.h>
#include "c_kzg_4844_jni.h"
#include "c_kzg_4844.h"
@ -7,15 +8,14 @@ JNIEXPORT void JNICALL Java_CKzg4844JNI_loadTrustedSetup(JNIEnv *env, jclass thi
{
settings = malloc(sizeof(KZGSettings));
const char *file_native = env->GetStringUTFChars(file, 0);
const char *file_native = (*env)->GetStringUTFChars(env, file, 0);
FILE *f = fopen(file_native, "r");
if (f == NULL)
{
free(settings);
env->ReleaseStringUTFChars(file, file_native);
// need to throw an exception
(*env)->ReleaseStringUTFChars(env, file, file_native);
return;
}
@ -23,44 +23,47 @@ JNIEXPORT void JNICALL Java_CKzg4844JNI_loadTrustedSetup(JNIEnv *env, jclass thi
{
free(settings);
fclose(f);
env->ReleaseStringUTFChars(file, file_native);
// need to throw an exception
(*env)->ReleaseStringUTFChars(env, file, file_native);
return;
}
fclose(f);
env->ReleaseStringUTFChars(file, file_native);
printf("Loaded Trusted Setup");
printf("Loaded Trusted Setup from %s\n", file_native);
(*env)->ReleaseStringUTFChars(env, file, file_native);
}
JNIEXPORT void JNICALL Java_CKzg4844JNI_freeTrustedSetup(JNIEnv *env, jclass thisCls)
{
free_trusted_setup(settings);
free(settings);
printf("Trusted Setup was unloaded\n");
}
JNIEXPORT jbyteArray JNICALL Java_CKzg4844JNI_computeAggregateKzgProof(JNIEnv *env, jclass thisCls, jbyteArray blobs, jint count)
{
jbyte *blobs_native = env->GetByteArrayElements(blobs, NULL);
jbyteArray proof = env->NewByteArray(48);
g1_t *out;
bytes_to_g1(out, (uint8_t *)blobs_native);
// NOT YET IMPLEMENTED
// jbyte *blobs_native = (*env)->GetByteArrayElements(env, blobs, NULL);
jbyteArray proof = (*env)->NewByteArray(env, 48);
return proof;
}
JNIEXPORT jboolean JNICALL Java_CKzg4844JNI_verifyAggregateKzgProof(JNIEnv *env, jclass thisCls, jbyteArray blobs, jbyteArray commitments, jint count, jbyteArray proof)
{
// NOT YET IMPLEMENTED
return false;
}
JNIEXPORT jbyteArray JNICALL Java_CKzg4844JNI_blobToKzgCommitment(JNIEnv *env, jclass thisCls, jbyteArray commitment)
JNIEXPORT jbyteArray JNICALL Java_CKzg4844JNI_blobToKzgCommitment(JNIEnv *env, jclass thisCls, jbyteArray blob)
{
jbyteArray ret = env->NewByteArray(48);
// NOT YET IMPLEMENTED
jbyteArray ret = (*env)->NewByteArray(env, 48);
return ret;
}
JNIEXPORT jboolean JNICALL Java_CKzg4844JNI_verifyKzgProof(JNIEnv *env, jclass thisCls, jbyteArray commitment, jbyteArray z, jbyteArray y, jbyteArray proof)
{
// NOT YET IMPLEMENTED
return false;
}