Bo Zhu | 0985613 | 2018-04-01 12:24:09 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2018 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #define LOG_TAG "Scrypt" |
| 18 | |
| 19 | #include <nativehelper/JNIHelp.h> |
| 20 | #include "jni.h" |
| 21 | |
| 22 | #include <android_runtime/Log.h> |
| 23 | #include <utils/Timers.h> |
| 24 | #include <utils/misc.h> |
| 25 | #include <utils/String8.h> |
| 26 | #include <utils/Log.h> |
| 27 | |
| 28 | extern "C" { |
| 29 | #include "crypto_scrypt.h" |
| 30 | } |
| 31 | |
| 32 | namespace android { |
| 33 | |
| 34 | static jbyteArray android_security_Scrypt_nativeScrypt(JNIEnv* env, jobject, jbyteArray password, jbyteArray salt, jint N, jint r, jint p, jint outLen) { |
| 35 | if (!password || !salt) { |
| 36 | return NULL; |
| 37 | } |
| 38 | |
| 39 | int passwordLen = env->GetArrayLength(password); |
| 40 | int saltLen = env->GetArrayLength(salt); |
| 41 | jbyteArray ret = env->NewByteArray(outLen); |
| 42 | |
| 43 | jbyte* passwordPtr = (jbyte*)env->GetByteArrayElements(password, NULL); |
| 44 | jbyte* saltPtr = (jbyte*)env->GetByteArrayElements(salt, NULL); |
| 45 | jbyte* retPtr = (jbyte*)env->GetByteArrayElements(ret, NULL); |
| 46 | |
| 47 | int rc = crypto_scrypt((const uint8_t *)passwordPtr, passwordLen, |
| 48 | (const uint8_t *)saltPtr, saltLen, N, r, p, (uint8_t *)retPtr, |
| 49 | outLen); |
| 50 | env->ReleaseByteArrayElements(password, passwordPtr, JNI_ABORT); |
| 51 | env->ReleaseByteArrayElements(salt, saltPtr, JNI_ABORT); |
| 52 | env->ReleaseByteArrayElements(ret, retPtr, 0); |
| 53 | |
| 54 | if (!rc) { |
| 55 | return ret; |
| 56 | } else { |
| 57 | SLOGE("scrypt failed"); |
| 58 | return NULL; |
| 59 | } |
| 60 | } |
| 61 | |
| 62 | static const JNINativeMethod sMethods[] = { |
| 63 | /* name, signature, funcPtr */ |
| 64 | {"nativeScrypt", "([B[BIIII)[B", (void*)android_security_Scrypt_nativeScrypt}, |
| 65 | }; |
| 66 | |
| 67 | int register_android_security_Scrypt(JNIEnv* env) { |
| 68 | return jniRegisterNativeMethods(env, "android/security/Scrypt", |
| 69 | sMethods, NELEM(sMethods)); |
| 70 | } |
| 71 | |
| 72 | } /* namespace android */ |