gecko/mozglue/android/NativeCrypto.cpp

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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "NativeCrypto.h"
#include <jni.h>
#include <errno.h>
#include <stdlib.h>
#include <inttypes.h>
#include "mozilla/SHA1.h"
#include "pbkdf2_sha256.h"
/**
* Helper function to invoke native PBKDF2 function with JNI
* arguments.
*/
extern "C" JNIEXPORT jbyteArray JNICALL Java_org_mozilla_gecko_background_nativecode_NativeCrypto_pbkdf2SHA256
(JNIEnv *env, jclass jc, jbyteArray jpassword, jbyteArray jsalt, jint c, jint dkLen) {
if (dkLen < 0) {
env->ThrowNew(env->FindClass("java/lang/IllegalArgumentException"),
"dkLen should not be less than 0");
return nullptr;
}
jbyte *password = env->GetByteArrayElements(jpassword, nullptr);
size_t passwordLen = env->GetArrayLength(jpassword);
jbyte *salt = env->GetByteArrayElements(jsalt, nullptr);
size_t saltLen = env->GetArrayLength(jsalt);
uint8_t hashResult[dkLen];
PBKDF2_SHA256((uint8_t *) password, passwordLen, (uint8_t *) salt, saltLen,
(uint64_t) c, hashResult, (size_t) dkLen);
env->ReleaseByteArrayElements(jpassword, password, JNI_ABORT);
env->ReleaseByteArrayElements(jsalt, salt, JNI_ABORT);
jbyteArray out = env->NewByteArray(dkLen);
if (out == nullptr) {
return nullptr;
}
env->SetByteArrayRegion(out, 0, dkLen, (jbyte *) hashResult);
return out;
}
using namespace mozilla;
/**
* Helper function to invoke native SHA-1 function with JNI arguments.
*/
extern "C" JNIEXPORT jbyteArray JNICALL Java_org_mozilla_gecko_background_nativecode_NativeCrypto_sha1
(JNIEnv *env, jclass jc, jbyteArray jstr) {
jbyte *str = env->GetByteArrayElements(jstr, nullptr);
size_t strLen = env->GetArrayLength(jstr);
SHA1Sum sha1;
SHA1Sum::Hash hashResult;
sha1.update((void *) str, (uint32_t) strLen);
sha1.finish(hashResult);
env->ReleaseByteArrayElements(jstr, str, JNI_ABORT);
jbyteArray out = env->NewByteArray(SHA1Sum::kHashSize);
if (out == nullptr) {
return nullptr;
}
env->SetByteArrayRegion(out, 0, SHA1Sum::kHashSize, (jbyte *) hashResult);
return out;
}