/
security.cpp
2654 lines (2280 loc) · 85.3 KB
/
security.cpp
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/*
* Copyright (c) 2005, 2020, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
//=--------------------------------------------------------------------------=
// security.cpp by Stanley Man-Kit Ho
//=--------------------------------------------------------------------------=
//
#include <jni.h>
#include "jni_util.h"
#include <stdlib.h>
#include <string.h>
#include <windows.h>
#include <BaseTsd.h>
#include <wincrypt.h>
#include <stdio.h>
#include <memory>
#include "sun_security_mscapi_CKey.h"
#include "sun_security_mscapi_CKeyStore.h"
#include "sun_security_mscapi_PRNG.h"
#include "sun_security_mscapi_CRSACipher.h"
#include "sun_security_mscapi_CKeyPairGenerator_RSA.h"
#include "sun_security_mscapi_CPublicKey.h"
#include "sun_security_mscapi_CPublicKey_CRSAPublicKey.h"
#include "sun_security_mscapi_CSignature.h"
#include "sun_security_mscapi_CSignature_RSA.h"
#define OID_EKU_ANY "2.5.29.37.0"
#define CERTIFICATE_PARSING_EXCEPTION \
"java/security/cert/CertificateParsingException"
#define INVALID_KEY_EXCEPTION \
"java/security/InvalidKeyException"
#define KEY_EXCEPTION "java/security/KeyException"
#define KEYSTORE_EXCEPTION "java/security/KeyStoreException"
#define PROVIDER_EXCEPTION "java/security/ProviderException"
#define SIGNATURE_EXCEPTION "java/security/SignatureException"
#define OUT_OF_MEMORY_ERROR "java/lang/OutOfMemoryError"
#define KEYSTORE_LOCATION_CURRENTUSER 0
#define KEYSTORE_LOCATION_LOCALMACHINE 1
#define SS_CHECK(Status) \
if (Status != ERROR_SUCCESS) { \
ThrowException(env, SIGNATURE_EXCEPTION, Status); \
__leave; \
}
#define PP(fmt, ...) \
if (trace) { \
fprintf(stdout, "MSCAPI (%ld): ", __LINE__); \
fprintf(stdout, fmt, ##__VA_ARGS__); \
fprintf(stdout, "\n"); \
fflush(stdout); \
}
extern "C" {
char* trace = getenv("CAPI_TRACE");
/*
* Declare library specific JNI_Onload entry if static build
*/
DEF_STATIC_JNI_OnLoad
void showProperty(NCRYPT_HANDLE hKey);
void dump(LPSTR title, PBYTE data, DWORD len)
{
if (trace) {
printf("==== %s ====\n", title);
for (DWORD i = 0; i < len; i+=16) {
printf("%04x: ", i);
for (int j = 0; j < 16; j++) {
if (j == 8) {
printf(" ");
}
if (i + j < len) {
printf("%02X ", *(data + i + j) & 0xff);
} else {
printf(" ");
}
}
for (int j = 0; j < 16; j++) {
if (i + j < len) {
int k = *(data + i + j) & 0xff;
if (k < 32 || k > 127) printf(".");
else printf("%c", (char)k);
}
}
printf("\n");
}
fflush(stdout);
}
}
/*
* Throws an arbitrary Java exception with the given message.
*/
void ThrowExceptionWithMessage(JNIEnv *env, const char *exceptionName,
const char *szMessage)
{
jclass exceptionClazz = env->FindClass(exceptionName);
if (exceptionClazz != NULL) {
env->ThrowNew(exceptionClazz, szMessage);
}
}
void ThrowExceptionWithMessageAndErrcode(JNIEnv *env, const char *exceptionName,
const char *msg, DWORD dwError) {
char szMessage[500];
szMessage[0] = '\0';
char szMessage2[1024];
szMessage2[0] = '\0';
DWORD res = FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM, NULL, dwError,
NULL, szMessage, sizeof(szMessage), NULL);
if (res == 0) {
strcpy(szMessage, "Unknown error");
}
snprintf(szMessage2, sizeof(szMessage2), "%s: error %lu, %s", msg, dwError, szMessage);
ThrowExceptionWithMessage(env, exceptionName, szMessage2);
}
/*
* Throws an arbitrary Java exception.
* The exception message is a Windows system error message.
*/
void ThrowException(JNIEnv *env, const char *exceptionName, DWORD dwError)
{
char szMessage[500];
szMessage[0] = '\0';
char szMessage2[1024];
szMessage2[0] = '\0';
DWORD res = FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM, NULL, dwError,
NULL, szMessage, sizeof(szMessage), NULL);
if (res == 0) {
strcpy(szMessage, "Unknown error");
}
snprintf(szMessage2, sizeof(szMessage2), "error %lu, %s", dwError, szMessage);
ThrowExceptionWithMessage(env, exceptionName, szMessage2);
}
/*
* Overloaded 'operator new[]' variant, which will raise Java's
* OutOfMemoryError in the case of a failure.
*/
void* operator new[](std::size_t size, JNIEnv *env)
{
void* buf = ::operator new[](size, std::nothrow);
if (buf == NULL) {
ThrowExceptionWithMessage(env, OUT_OF_MEMORY_ERROR,
"Native memory allocation failed");
}
return buf;
}
/*
* Maps the name of a hash algorithm to an algorithm identifier.
*/
ALG_ID MapHashAlgorithm(JNIEnv *env, jstring jHashAlgorithm) {
const char* pszHashAlgorithm = NULL;
ALG_ID algId = 0;
if ((pszHashAlgorithm = env->GetStringUTFChars(jHashAlgorithm, NULL))
== NULL) {
return algId;
}
if ((strcmp("SHA", pszHashAlgorithm) == 0) ||
(strcmp("SHA1", pszHashAlgorithm) == 0) ||
(strcmp("SHA-1", pszHashAlgorithm) == 0)) {
algId = CALG_SHA1;
} else if (strcmp("SHA1+MD5", pszHashAlgorithm) == 0) {
algId = CALG_SSL3_SHAMD5; // a 36-byte concatenation of SHA-1 and MD5
} else if (strcmp("SHA-256", pszHashAlgorithm) == 0) {
algId = CALG_SHA_256;
} else if (strcmp("SHA-384", pszHashAlgorithm) == 0) {
algId = CALG_SHA_384;
} else if (strcmp("SHA-512", pszHashAlgorithm) == 0) {
algId = CALG_SHA_512;
} else if (strcmp("MD5", pszHashAlgorithm) == 0) {
algId = CALG_MD5;
} else if (strcmp("MD2", pszHashAlgorithm) == 0) {
algId = CALG_MD2;
}
if (pszHashAlgorithm)
env->ReleaseStringUTFChars(jHashAlgorithm, pszHashAlgorithm);
return algId;
}
/*
* Maps the name of a hash algorithm to a CNG Algorithm Identifier.
*/
LPCWSTR MapHashIdentifier(JNIEnv *env, jstring jHashAlgorithm) {
const char* pszHashAlgorithm = NULL;
LPCWSTR id = NULL;
if ((pszHashAlgorithm = env->GetStringUTFChars(jHashAlgorithm, NULL))
== NULL) {
return id;
}
if ((strcmp("SHA", pszHashAlgorithm) == 0) ||
(strcmp("SHA1", pszHashAlgorithm) == 0) ||
(strcmp("SHA-1", pszHashAlgorithm) == 0)) {
id = BCRYPT_SHA1_ALGORITHM;
} else if (strcmp("SHA-256", pszHashAlgorithm) == 0) {
id = BCRYPT_SHA256_ALGORITHM;
} else if (strcmp("SHA-384", pszHashAlgorithm) == 0) {
id = BCRYPT_SHA384_ALGORITHM;
} else if (strcmp("SHA-512", pszHashAlgorithm) == 0) {
id = BCRYPT_SHA512_ALGORITHM;
}
if (pszHashAlgorithm)
env->ReleaseStringUTFChars(jHashAlgorithm, pszHashAlgorithm);
return id;
}
/*
* Returns a certificate chain context given a certificate context and key
* usage identifier.
*/
bool GetCertificateChain(LPSTR lpszKeyUsageIdentifier, PCCERT_CONTEXT pCertContext, PCCERT_CHAIN_CONTEXT* ppChainContext)
{
CERT_ENHKEY_USAGE EnhkeyUsage;
CERT_USAGE_MATCH CertUsage;
CERT_CHAIN_PARA ChainPara;
DWORD dwFlags = 0;
LPSTR szUsageIdentifierArray[1];
szUsageIdentifierArray[0] = lpszKeyUsageIdentifier;
EnhkeyUsage.cUsageIdentifier = 1;
EnhkeyUsage.rgpszUsageIdentifier = szUsageIdentifierArray;
CertUsage.dwType = USAGE_MATCH_TYPE_AND;
CertUsage.Usage = EnhkeyUsage;
ChainPara.cbSize = sizeof(CERT_CHAIN_PARA);
ChainPara.RequestedUsage=CertUsage;
// Build a chain using CertGetCertificateChain
// and the certificate retrieved.
return (::CertGetCertificateChain(NULL, // use the default chain engine
pCertContext, // pointer to the end certificate
NULL, // use the default time
NULL, // search no additional stores
&ChainPara, // use AND logic and enhanced key usage
// as indicated in the ChainPara
// data structure
dwFlags,
NULL, // currently reserved
ppChainContext) == TRUE); // return a pointer to the chain created
}
/////////////////////////////////////////////////////////////////////////////
//
/*
* Class: sun_security_mscapi_PRNG
* Method: getContext
* Signature: ()J
*/
JNIEXPORT jlong JNICALL Java_sun_security_mscapi_PRNG_getContext
(JNIEnv *env, jclass clazz) {
HCRYPTPROV hCryptProv = NULL;
if(::CryptAcquireContext( //deprecated
&hCryptProv,
NULL,
NULL,
PROV_RSA_FULL,
CRYPT_VERIFYCONTEXT) == FALSE)
{
ThrowException(env, PROVIDER_EXCEPTION, GetLastError());
}
return hCryptProv;
}
/*
* Class: sun_security_mscapi_PRNG
* Method: releaseContext
* Signature: (J)V
*/
JNIEXPORT void JNICALL Java_sun_security_mscapi_PRNG_releaseContext
(JNIEnv *env, jclass clazz, jlong ctxt) {
if (ctxt) {
::CryptReleaseContext((HCRYPTPROV)ctxt, 0); //deprecated
}
}
/*
* Class: sun_security_mscapi_PRNG
* Method: generateSeed
* Signature: (JI[B)[B
*/
JNIEXPORT jbyteArray JNICALL Java_sun_security_mscapi_PRNG_generateSeed
(JNIEnv *env, jclass clazz, jlong ctxt, jint length, jbyteArray seed)
{
HCRYPTPROV hCryptProv = (HCRYPTPROV)ctxt;
jbyte* reseedBytes = NULL;
jbyte* seedBytes = NULL;
jbyteArray result = NULL;
__try
{
/*
* If length is negative then use the supplied seed to re-seed the
* generator and return null.
* If length is non-zero then generate a new seed according to the
* requested length and return the new seed.
* If length is zero then overwrite the supplied seed with a new
* seed of the same length and return the seed.
*/
if (length < 0) {
length = env->GetArrayLength(seed);
if ((reseedBytes = env->GetByteArrayElements(seed, 0)) == NULL) {
__leave;
}
if (::CryptGenRandom( //deprecated
hCryptProv,
length,
(BYTE *) reseedBytes) == FALSE) {
ThrowException(env, PROVIDER_EXCEPTION, GetLastError());
__leave;
}
result = NULL;
} else {
if (length > 0) {
seed = env->NewByteArray(length);
if (seed == NULL) {
__leave;
}
} else {
length = env->GetArrayLength(seed);
}
if ((seedBytes = env->GetByteArrayElements(seed, 0)) == NULL) {
__leave;
}
if (::CryptGenRandom( //deprecated
hCryptProv,
length,
(BYTE *) seedBytes) == FALSE) {
ThrowException(env, PROVIDER_EXCEPTION, GetLastError());
__leave;
}
result = seed; // seed will be updated when seedBytes gets released
}
}
__finally
{
//--------------------------------------------------------------------
// Clean up.
if (reseedBytes)
env->ReleaseByteArrayElements(seed, reseedBytes, JNI_ABORT);
if (seedBytes)
env->ReleaseByteArrayElements(seed, seedBytes, 0); // update orig
}
return result;
}
/*
* Class: sun_security_mscapi_CKeyStore
* Method: loadKeysOrCertificateChains
* Signature: (Ljava/lang/String;I)V
*/
JNIEXPORT void JNICALL Java_sun_security_mscapi_CKeyStore_loadKeysOrCertificateChains
(JNIEnv *env, jobject obj, jstring jCertStoreName, jint jCertStoreLocation)
{
/**
* Certificate in cert store has enhanced key usage extension
* property (or EKU property) that is not part of the certificate itself. To determine
* if the certificate should be returned, both the enhanced key usage in certificate
* extension block and the extension property stored along with the certificate in
* certificate store should be examined. Otherwise, we won't be able to determine
* the proper key usage from the Java side because the information is not stored as
* part of the encoded certificate.
*/
const char* pszCertStoreName = NULL;
HCERTSTORE hCertStore = NULL;
PCCERT_CONTEXT pCertContext = NULL;
char* pszNameString = NULL; // certificate's friendly name
DWORD cchNameString = 0;
__try
{
// Open a system certificate store.
if ((pszCertStoreName = env->GetStringUTFChars(jCertStoreName, NULL))
== NULL) {
__leave;
}
if (jCertStoreLocation == KEYSTORE_LOCATION_CURRENTUSER) {
hCertStore = ::CertOpenSystemStore(NULL, pszCertStoreName);
}
else if (jCertStoreLocation == KEYSTORE_LOCATION_LOCALMACHINE) {
hCertStore = ::CertOpenStore(CERT_STORE_PROV_SYSTEM_A, 0, NULL,
CERT_SYSTEM_STORE_LOCAL_MACHINE, pszCertStoreName);
}
else {
PP("jCertStoreLocation is not a valid value");
__leave;
}
if (hCertStore == NULL) {
ThrowException(env, KEYSTORE_EXCEPTION, GetLastError());
__leave;
}
// Determine clazz and method ID to generate certificate
jclass clazzArrayList = env->FindClass("java/util/ArrayList");
if (clazzArrayList == NULL) {
__leave;
}
jmethodID mNewArrayList = env->GetMethodID(clazzArrayList, "<init>", "()V");
if (mNewArrayList == NULL) {
__leave;
}
jclass clazzOfThis = env->GetObjectClass(obj);
if (clazzOfThis == NULL) {
__leave;
}
jmethodID mGenCert = env->GetMethodID(clazzOfThis,
"generateCertificate",
"([BLjava/util/Collection;)V");
if (mGenCert == NULL) {
__leave;
}
// Determine method ID to generate certificate chain
jmethodID mGenCertChain = env->GetMethodID(clazzOfThis,
"generateCertificateChain",
"(Ljava/lang/String;Ljava/util/Collection;)V");
if (mGenCertChain == NULL) {
__leave;
}
// Determine method ID to generate RSA certificate chain
jmethodID mGenKeyAndCertChain = env->GetMethodID(clazzOfThis,
"generateKeyAndCertificateChain",
"(ZLjava/lang/String;JJILjava/util/Collection;)V");
if (mGenKeyAndCertChain == NULL) {
__leave;
}
// Use CertEnumCertificatesInStore to get the certificates
// from the open store. pCertContext must be reset to
// NULL to retrieve the first certificate in the store.
while (pCertContext = ::CertEnumCertificatesInStore(hCertStore, pCertContext))
{
PP("--------------------------");
// Check if private key available - client authentication certificate
// must have private key available.
HCRYPTPROV_OR_NCRYPT_KEY_HANDLE hCryptProv = NULL;
DWORD dwKeySpec = 0;
HCRYPTKEY hUserKey = NULL;
BOOL bCallerFreeProv = FALSE;
BOOL bHasNoPrivateKey = FALSE;
DWORD dwPublicKeyLength = 0;
// First, probe it silently
if (::CryptAcquireCertificatePrivateKey(pCertContext,
CRYPT_ACQUIRE_ALLOW_NCRYPT_KEY_FLAG | CRYPT_ACQUIRE_SILENT_FLAG, NULL,
&hCryptProv, &dwKeySpec, &bCallerFreeProv) == FALSE
&& GetLastError() != NTE_SILENT_CONTEXT)
{
PP("bHasNoPrivateKey = TRUE!");
bHasNoPrivateKey = TRUE;
}
else
{
if (bCallerFreeProv == TRUE) {
::CryptReleaseContext(hCryptProv, NULL); // deprecated
bCallerFreeProv = FALSE;
}
// Second, acquire the key normally (not silently)
if (::CryptAcquireCertificatePrivateKey(pCertContext, CRYPT_ACQUIRE_ALLOW_NCRYPT_KEY_FLAG, NULL,
&hCryptProv, &dwKeySpec, &bCallerFreeProv) == FALSE)
{
PP("bHasNoPrivateKey = TRUE!!");
bHasNoPrivateKey = TRUE;
}
else
{
if ((dwKeySpec & CERT_NCRYPT_KEY_SPEC) == CERT_NCRYPT_KEY_SPEC) {
PP("CNG %I64d", (__int64)hCryptProv);
} else {
// Private key is available
BOOL bGetUserKey = ::CryptGetUserKey(hCryptProv, dwKeySpec, &hUserKey); //deprecated
// Skip certificate if cannot find private key
if (bGetUserKey == FALSE) {
if (bCallerFreeProv)
::CryptReleaseContext(hCryptProv, NULL); // deprecated
continue;
}
// Set cipher mode to ECB
DWORD dwCipherMode = CRYPT_MODE_ECB;
::CryptSetKeyParam(hUserKey, KP_MODE, (BYTE*)&dwCipherMode, NULL); //deprecated
PP("CAPI %I64d %I64d", (__int64)hCryptProv, (__int64)hUserKey);
}
// If the private key is present in smart card, we may not be able to
// determine the key length by using the private key handle. However,
// since public/private key pairs must have the same length, we could
// determine the key length of the private key by using the public key
// in the certificate.
dwPublicKeyLength = ::CertGetPublicKeyLength(X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
&(pCertContext->pCertInfo->SubjectPublicKeyInfo));
}
}
PCCERT_CHAIN_CONTEXT pCertChainContext = NULL;
// Build certificate chain by using system certificate store.
// Add cert chain into collection for any key usage.
//
if (GetCertificateChain(OID_EKU_ANY, pCertContext, &pCertChainContext))
{
for (DWORD i = 0; i < pCertChainContext->cChain; i++)
{
// Found cert chain
PCERT_SIMPLE_CHAIN rgpChain =
pCertChainContext->rgpChain[i];
// Create ArrayList to store certs in each chain
jobject jArrayList =
env->NewObject(clazzArrayList, mNewArrayList);
if (jArrayList == NULL) {
__leave;
}
// Cleanup the previous allocated name
if (pszNameString) {
delete [] pszNameString;
pszNameString = NULL;
}
for (unsigned int j=0; j < rgpChain->cElement; j++)
{
PCERT_CHAIN_ELEMENT rgpElement =
rgpChain->rgpElement[j];
PCCERT_CONTEXT pc = rgpElement->pCertContext;
// Retrieve the friendly name of the first certificate
// in the chain
if (j == 0) {
// If the cert's name cannot be retrieved then
// pszNameString remains set to NULL.
// (An alias name will be generated automatically
// when storing this cert in the keystore.)
// Get length of friendly name
if ((cchNameString = CertGetNameString(pc,
CERT_NAME_FRIENDLY_DISPLAY_TYPE, 0, NULL,
NULL, 0)) > 1) {
// Found friendly name
pszNameString = new (env) char[cchNameString];
if (pszNameString == NULL) {
__leave;
}
CertGetNameString(pc,
CERT_NAME_FRIENDLY_DISPLAY_TYPE, 0, NULL,
pszNameString, cchNameString);
}
}
BYTE* pbCertEncoded = pc->pbCertEncoded;
DWORD cbCertEncoded = pc->cbCertEncoded;
// Allocate and populate byte array
jbyteArray byteArray = env->NewByteArray(cbCertEncoded);
if (byteArray == NULL) {
__leave;
}
env->SetByteArrayRegion(byteArray, 0, cbCertEncoded,
(jbyte*) pbCertEncoded);
// Generate certificate from byte array and store into
// cert collection
env->CallVoidMethod(obj, mGenCert, byteArray, jArrayList);
}
// Usually pszNameString should be non-NULL. It's either
// the friendly name or an element from the subject name
// or SAN.
if (pszNameString)
{
PP("%s: %s", pszNameString, pCertContext->pCertInfo->SubjectPublicKeyInfo.Algorithm.pszObjId);
if (bHasNoPrivateKey)
{
// Generate certificate chain and store into cert chain
// collection
jstring name = env->NewStringUTF(pszNameString);
if (name == NULL) {
__leave;
}
env->CallVoidMethod(obj, mGenCertChain,
name,
jArrayList);
}
else
{
if (hUserKey) {
// Only accept RSA for CAPI
DWORD dwData = CALG_RSA_KEYX;
DWORD dwSize = sizeof(DWORD);
::CryptGetKeyParam(hUserKey, KP_ALGID, (BYTE*)&dwData, //deprecated
&dwSize, NULL);
if ((dwData & ALG_TYPE_RSA) == ALG_TYPE_RSA)
{
// Generate RSA certificate chain and store into cert
// chain collection
jstring name = env->NewStringUTF(pszNameString);
if (name == NULL) {
__leave;
}
env->CallVoidMethod(obj, mGenKeyAndCertChain,
1,
name,
(jlong) hCryptProv, (jlong) hUserKey,
dwPublicKeyLength, jArrayList);
}
} else {
// Only accept EC for CNG
BYTE buffer[32];
DWORD len = 0;
if (::NCryptGetProperty(
hCryptProv, NCRYPT_ALGORITHM_PROPERTY,
(PBYTE)buffer, 32, &len, NCRYPT_SILENT_FLAG) == ERROR_SUCCESS) {
jstring name = env->NewStringUTF(pszNameString);
if (name == NULL) {
__leave;
}
if (buffer[0] == 'E' && buffer[2] == 'C'
&& (dwPublicKeyLength == 256
|| dwPublicKeyLength == 384
|| dwPublicKeyLength == 521)) {
env->CallVoidMethod(obj, mGenKeyAndCertChain,
0,
name,
(jlong) hCryptProv, (jlong) 0,
dwPublicKeyLength, jArrayList);
} else if (buffer[0] == 'R' && buffer[2] == 'S'
&& buffer[4] == 'A') {
env->CallVoidMethod(obj, mGenKeyAndCertChain,
1,
name,
(jlong) hCryptProv, (jlong) 0,
dwPublicKeyLength, jArrayList);
} else {
dump("Unknown NCRYPT_ALGORITHM_PROPERTY", buffer, len);
}
}
}
}
}
}
// Free cert chain
if (pCertChainContext)
::CertFreeCertificateChain(pCertChainContext);
} else {
PP("GetCertificateChain failed %d", GetLastError());
}
}
}
__finally
{
if (hCertStore)
::CertCloseStore(hCertStore, 0);
if (pszCertStoreName)
env->ReleaseStringUTFChars(jCertStoreName, pszCertStoreName);
if (pszNameString)
delete [] pszNameString;
}
}
/*
* Class: sun_security_mscapi_CKey
* Method: cleanUp
* Signature: (JJ)V
*/
JNIEXPORT void JNICALL Java_sun_security_mscapi_CKey_cleanUp
(JNIEnv *env, jclass clazz, jlong hCryptProv, jlong hCryptKey)
{
if (hCryptKey == NULL && hCryptProv != NULL) {
NCryptFreeObject((NCRYPT_HANDLE)hCryptProv);
} else {
if (hCryptKey != NULL)
::CryptDestroyKey((HCRYPTKEY) hCryptKey); // deprecated
if (hCryptProv != NULL)
::CryptReleaseContext((HCRYPTPROV) hCryptProv, NULL); // deprecated
}
}
/*
* Class: sun_security_mscapi_CSignature
* Method: signHash
* Signature: (Z[BILjava/lang/String;JJ)[B
*/
JNIEXPORT jbyteArray JNICALL Java_sun_security_mscapi_CSignature_signHash
(JNIEnv *env, jclass clazz, jboolean noHashOID, jbyteArray jHash,
jint jHashSize, jstring jHashAlgorithm, jlong hCryptProv,
jlong hCryptKey)
{
HCRYPTHASH hHash = NULL;
jbyte* pHashBuffer = NULL;
jbyte* pSignedHashBuffer = NULL;
jbyteArray jSignedHash = NULL;
HCRYPTPROV hCryptProvAlt = NULL;
__try
{
// Map hash algorithm
ALG_ID algId = MapHashAlgorithm(env, jHashAlgorithm);
// Acquire a hash object handle.
if (::CryptCreateHash(HCRYPTPROV(hCryptProv), algId, 0, 0, &hHash) == FALSE) //deprecated
{
// Failover to using the PROV_RSA_AES CSP
DWORD cbData = 256;
BYTE pbData[256];
pbData[0] = '\0';
// Get name of the key container
::CryptGetProvParam((HCRYPTPROV)hCryptProv, PP_CONTAINER, //deprecated
(BYTE *)pbData, &cbData, 0);
// Acquire an alternative CSP handle
if (::CryptAcquireContext(&hCryptProvAlt, LPCSTR(pbData), NULL, //deprecated
PROV_RSA_AES, 0) == FALSE)
{
ThrowException(env, SIGNATURE_EXCEPTION, GetLastError());
__leave;
}
// Acquire a hash object handle.
if (::CryptCreateHash(HCRYPTPROV(hCryptProvAlt), algId, 0, 0, //deprecated
&hHash) == FALSE)
{
ThrowException(env, SIGNATURE_EXCEPTION, GetLastError());
__leave;
}
}
// Copy hash from Java to native buffer
pHashBuffer = new (env) jbyte[jHashSize];
if (pHashBuffer == NULL) {
__leave;
}
env->GetByteArrayRegion(jHash, 0, jHashSize, pHashBuffer);
// Set hash value in the hash object
if (::CryptSetHashParam(hHash, HP_HASHVAL, (BYTE*)pHashBuffer, NULL) == FALSE) //deprecated
{
ThrowException(env, SIGNATURE_EXCEPTION, GetLastError());
__leave;
}
// Determine key spec.
DWORD dwKeySpec = AT_SIGNATURE;
ALG_ID dwAlgId;
DWORD dwAlgIdLen = sizeof(ALG_ID);
if (! ::CryptGetKeyParam((HCRYPTKEY) hCryptKey, KP_ALGID, (BYTE*)&dwAlgId, &dwAlgIdLen, 0)) { //deprecated
ThrowException(env, SIGNATURE_EXCEPTION, GetLastError());
__leave;
}
if (CALG_RSA_KEYX == dwAlgId) {
dwKeySpec = AT_KEYEXCHANGE;
}
// Determine size of buffer
DWORD dwBufLen = 0;
DWORD dwFlags = 0;
if (noHashOID == JNI_TRUE) {
dwFlags = CRYPT_NOHASHOID; // omit hash OID in NONEwithRSA signature
}
if (::CryptSignHash(hHash, dwKeySpec, NULL, dwFlags, NULL, &dwBufLen) == FALSE) //deprecated
{
ThrowException(env, SIGNATURE_EXCEPTION, GetLastError());
__leave;
}
pSignedHashBuffer = new (env) jbyte[dwBufLen];
if (pSignedHashBuffer == NULL) {
__leave;
}
if (::CryptSignHash(hHash, dwKeySpec, NULL, dwFlags, (BYTE*)pSignedHashBuffer, &dwBufLen) == FALSE) //deprecated
{
ThrowException(env, SIGNATURE_EXCEPTION, GetLastError());
__leave;
}
// Create new byte array
jbyteArray temp = env->NewByteArray(dwBufLen);
if (temp == NULL) {
__leave;
}
// Copy data from native buffer
env->SetByteArrayRegion(temp, 0, dwBufLen, pSignedHashBuffer);
jSignedHash = temp;
}
__finally
{
if (pSignedHashBuffer)
delete [] pSignedHashBuffer;
if (pHashBuffer)
delete [] pHashBuffer;
if (hHash)
::CryptDestroyHash(hHash); //deprecated
if (hCryptProvAlt)
::CryptReleaseContext(hCryptProvAlt, 0); // deprecated
}
return jSignedHash;
}
/*
* Class: sun_security_mscapi_CSignature
* Method: signCngHash
* Signature: (I[BIILjava/lang/String;JJ)[B
*/
JNIEXPORT jbyteArray JNICALL Java_sun_security_mscapi_CSignature_signCngHash
(JNIEnv *env, jclass clazz, jint type, jbyteArray jHash,
jint jHashSize, jint saltLen, jstring jHashAlgorithm, jlong hCryptProv,
jlong hCryptKey)
{
jbyteArray jSignedHash = NULL;
jbyte* pHashBuffer = NULL;
jbyte* pSignedHashBuffer = NULL;
NCRYPT_KEY_HANDLE hk = NULL;
__try
{
if (hCryptKey == 0) {
hk = (NCRYPT_KEY_HANDLE)hCryptProv;
} else {
SS_CHECK(::NCryptTranslateHandle(
NULL,
&hk,
(HCRYPTPROV)hCryptProv,
(HCRYPTKEY)hCryptKey,
NULL,
0));
}
// Copy hash from Java to native buffer
pHashBuffer = new (env) jbyte[jHashSize];
if (pHashBuffer == NULL) {
__leave;
}
env->GetByteArrayRegion(jHash, 0, jHashSize, pHashBuffer);
VOID* param;
DWORD dwFlags;
switch (type) {
case 0:
param = NULL;
dwFlags = 0;
break;
case 1:
BCRYPT_PKCS1_PADDING_INFO pkcs1Info;
if (jHashAlgorithm) {
pkcs1Info.pszAlgId = MapHashIdentifier(env, jHashAlgorithm);
if (pkcs1Info.pszAlgId == NULL) {
ThrowExceptionWithMessage(env, SIGNATURE_EXCEPTION,
"Unrecognised hash algorithm");
__leave;
}
} else {
pkcs1Info.pszAlgId = NULL;
}
param = &pkcs1Info;
dwFlags = BCRYPT_PAD_PKCS1;
break;
case 2:
BCRYPT_PSS_PADDING_INFO pssInfo;
pssInfo.pszAlgId = MapHashIdentifier(env, jHashAlgorithm);
pssInfo.cbSalt = saltLen;
if (pssInfo.pszAlgId == NULL) {
ThrowExceptionWithMessage(env, SIGNATURE_EXCEPTION,
"Unrecognised hash algorithm");
__leave;
}
param = &pssInfo;
dwFlags = BCRYPT_PAD_PSS;
break;
}
DWORD jSignedHashSize = 0;
SS_CHECK(::NCryptSignHash(
hk,
param,
(BYTE*)pHashBuffer, jHashSize,
NULL, 0, &jSignedHashSize,
dwFlags
));
pSignedHashBuffer = new (env) jbyte[jSignedHashSize];
if (pSignedHashBuffer == NULL) {
__leave;
}
SS_CHECK(::NCryptSignHash(
hk,
param,
(BYTE*)pHashBuffer, jHashSize,
(BYTE*)pSignedHashBuffer, jSignedHashSize, &jSignedHashSize,
dwFlags
));
// Create new byte array
jbyteArray temp = env->NewByteArray(jSignedHashSize);
if (temp == NULL) {
__leave;
}
// Copy data from native buffer
env->SetByteArrayRegion(temp, 0, jSignedHashSize, pSignedHashBuffer);
jSignedHash = temp;
}
__finally
{
if (pSignedHashBuffer)
delete [] pSignedHashBuffer;