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https://codeberg.org/Freeyourgadget/Gadgetbridge
synced 2024-06-24 22:10:55 +02:00
30 lines
1.3 KiB
C
30 lines
1.3 KiB
C
#include <jni.h>
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#include "ecdh.h"
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JNIEXPORT jbyteArray JNICALL
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Java_nodomain_freeyourgadget_gadgetbridge_service_devices_huami_operations_InitOperation2021_ecdh_1generate_1public(
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JNIEnv *env, jobject thiz, jbyteArray private_ec) {
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jboolean isCopy;
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jbyte *privec = (*env)->GetByteArrayElements(env, private_ec, &isCopy);
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jbyte public_ec[48];
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ecdh_generate_keys((unsigned char *) public_ec, (unsigned char *) privec);
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jbyteArray return_array = (*env)->NewByteArray(env, 48);
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(*env)->SetByteArrayRegion(env, return_array, 0, 48, public_ec);
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return return_array;
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}
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JNIEXPORT jbyteArray JNICALL
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Java_nodomain_freeyourgadget_gadgetbridge_service_devices_huami_operations_InitOperation2021_ecdh_1generate_1shared(
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JNIEnv *env, jobject thiz, jbyteArray private_ec, jbyteArray remote_public_ec) {
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jboolean isCopy;
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jbyte *privec = (*env)->GetByteArrayElements(env, private_ec, &isCopy);
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jbyte *rempubec = (*env)->GetByteArrayElements(env, remote_public_ec, &isCopy);
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jbyte shared_ec[48];
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ecdh_shared_secret((unsigned char *) privec, (unsigned char *) rempubec,
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(unsigned char *) shared_ec);
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jbyteArray return_array = (*env)->NewByteArray(env, 48);
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(*env)->SetByteArrayRegion(env, return_array, 0, 48, shared_ec);
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return return_array;
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} |