/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "Scrypt"
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#include <nativehelper/JNIHelp.h>
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#include "jni.h"
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#include <android_runtime/Log.h>
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#include <utils/Timers.h>
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#include <utils/misc.h>
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#include <utils/String8.h>
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#include <utils/Log.h>
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extern "C" {
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#include "crypto_scrypt.h"
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}
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namespace android {
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static jbyteArray android_security_Scrypt_nativeScrypt(JNIEnv* env, jobject, jbyteArray password, jbyteArray salt, jint N, jint r, jint p, jint outLen) {
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if (!password || !salt) {
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return NULL;
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}
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int passwordLen = env->GetArrayLength(password);
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int saltLen = env->GetArrayLength(salt);
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jbyteArray ret = env->NewByteArray(outLen);
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jbyte* passwordPtr = (jbyte*)env->GetByteArrayElements(password, NULL);
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jbyte* saltPtr = (jbyte*)env->GetByteArrayElements(salt, NULL);
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jbyte* retPtr = (jbyte*)env->GetByteArrayElements(ret, NULL);
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int rc = crypto_scrypt((const uint8_t *)passwordPtr, passwordLen,
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(const uint8_t *)saltPtr, saltLen, N, r, p, (uint8_t *)retPtr,
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outLen);
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env->ReleaseByteArrayElements(password, passwordPtr, JNI_ABORT);
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env->ReleaseByteArrayElements(salt, saltPtr, JNI_ABORT);
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env->ReleaseByteArrayElements(ret, retPtr, 0);
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if (!rc) {
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return ret;
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} else {
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SLOGE("scrypt failed");
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return NULL;
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}
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}
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static const JNINativeMethod sMethods[] = {
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/* name, signature, funcPtr */
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{"nativeScrypt", "([B[BIIII)[B", (void*)android_security_Scrypt_nativeScrypt},
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};
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int register_android_security_Scrypt(JNIEnv* env) {
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return jniRegisterNativeMethods(env, "android/security/Scrypt",
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sMethods, NELEM(sMethods));
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}
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} /* namespace android */
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