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//
// JBCyrpto.cpp
// xcopenvpn
//
// Created by Arne Schwabe on 12.07.12.
// Copyright (c) 2012 Universität Paderborn. All rights reserved.
//
#include <jni.h>
#include <openssl/ssl.h>
#include <openssl/rsa.h>
#include <openssl/objects.h>
#include <openssl/md5.h>
extern "C" {
jbyteArray Java_de_blinkt_openvpn_OpenVpnManagementThread_rsasign(JNIEnv* env, jclass, jbyteArray from, jint pkeyRef);
}
jbyteArray Java_de_blinkt_openvpn_OpenVpnManagementThread_rsasign(JNIEnv* env, jclass, jbyteArray from, jint pkeyRef) {
// EVP_MD_CTX* ctx = reinterpret_cast<EVP_MD_CTX*>(ctxRef);
EVP_PKEY* pkey = reinterpret_cast<EVP_PKEY*>(pkeyRef);
if (pkey == NULL || from == NULL) {
jniThrowException(env, "java/lang/NullPointerException", "EVP_KEY is null");
return NULL;
}
jbyte* data = env-> GetByteArrayElements (from, NULL);
int datalen = env-> GetArrayLength(from);
if(data==NULL || datalen == )
unsigned int siglen;
unsigned char* sigret = (unsigned char*)malloc(RSA_size(pkey->pkey.rsa));
//int RSA_sign(int type, const unsigned char *m, unsigned int m_len,
// unsigned char *sigret, unsigned int *siglen, RSA *rsa);
// adapted from s3_clnt.c
if (RSA_sign(NID_md5_sha1, (unsigned char*) data, datalen,
sigret, &siglen, pkey->pkey.rsa) <= 0 )
{
ERR_print_errors(errbio);
jniThrowException(env, "java/security/InvalidKeyException", "rsa_sign went wrong, see logcat");
ERR_print_errors_fp(stderr);
return NULL;
}
jbyteArray jb;
jb =env->NewByteArray(siglen);
env->SetByteArrayRegion(jb, 0, siglen, (jbyte *) sigret);
free(sigret);
return jb;
}
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