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May 30, 2017 11:33
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diff --git a/encfs/SSL_Cipher.cpp b/encfs/SSL_Cipher.cpp | |
index e9ba424..4d14755 100644 | |
--- a/encfs/SSL_Cipher.cpp | |
+++ b/encfs/SSL_Cipher.cpp | |
@@ -28,6 +28,7 @@ | |
#include <openssl/err.h> | |
#include <openssl/hmac.h> | |
+#include "SSL_Compat.h" | |
#include "SSL_Cipher.h" | |
#include "Range.h" | |
#include "MemoryPool.h" | |
@@ -79,19 +80,19 @@ int BytesToKey(int keyLen, int ivLen, const EVP_MD *md, | |
int nkey = key ? keyLen : 0; | |
int niv = iv ? ivLen : 0; | |
- EVP_MD_CTX cx; | |
- EVP_MD_CTX_init(&cx); | |
+ EVP_MD_CTX *cx = EVP_MD_CTX_new(); | |
+ EVP_MD_CTX_init(cx); | |
for (;;) { | |
- EVP_DigestInit_ex(&cx, md, NULL); | |
- if (addmd++) EVP_DigestUpdate(&cx, mdBuf, mds); | |
- EVP_DigestUpdate(&cx, data, dataLen); | |
- EVP_DigestFinal_ex(&cx, mdBuf, &mds); | |
+ EVP_DigestInit_ex(cx, md, NULL); | |
+ if (addmd++) EVP_DigestUpdate(cx, mdBuf, mds); | |
+ EVP_DigestUpdate(cx, data, dataLen); | |
+ EVP_DigestFinal_ex(cx, mdBuf, &mds); | |
for (unsigned int i = 1; i < rounds; ++i) { | |
- EVP_DigestInit_ex(&cx, md, NULL); | |
- EVP_DigestUpdate(&cx, mdBuf, mds); | |
- EVP_DigestFinal_ex(&cx, mdBuf, &mds); | |
+ EVP_DigestInit_ex(cx, md, NULL); | |
+ EVP_DigestUpdate(cx, mdBuf, mds); | |
+ EVP_DigestFinal_ex(cx, mdBuf, &mds); | |
} | |
int offset = 0; | |
@@ -111,7 +112,7 @@ int BytesToKey(int keyLen, int ivLen, const EVP_MD *md, | |
} | |
if ((nkey == 0) && (niv == 0)) break; | |
} | |
- EVP_MD_CTX_cleanup(&cx); | |
+ EVP_MD_CTX_free(cx); | |
OPENSSL_cleanse(mdBuf, sizeof(mdBuf)); | |
return keyLen; | |
@@ -233,12 +234,12 @@ class SSLKey : public AbstractCipherKey { | |
// followed by iv of _ivLength bytes, | |
unsigned char *buffer; | |
- EVP_CIPHER_CTX block_enc; | |
- EVP_CIPHER_CTX block_dec; | |
- EVP_CIPHER_CTX stream_enc; | |
- EVP_CIPHER_CTX stream_dec; | |
+ EVP_CIPHER_CTX *block_enc; | |
+ EVP_CIPHER_CTX *block_dec; | |
+ EVP_CIPHER_CTX *stream_enc; | |
+ EVP_CIPHER_CTX *stream_dec; | |
- HMAC_CTX mac_ctx; | |
+ HMAC_CTX *mac_ctx; | |
SSLKey(int keySize, int ivLength); | |
~SSLKey(); | |
@@ -266,12 +267,12 @@ SSLKey::~SSLKey() { | |
ivLength = 0; | |
buffer = 0; | |
- EVP_CIPHER_CTX_cleanup(&block_enc); | |
- EVP_CIPHER_CTX_cleanup(&block_dec); | |
- EVP_CIPHER_CTX_cleanup(&stream_enc); | |
- EVP_CIPHER_CTX_cleanup(&stream_dec); | |
- HMAC_CTX_cleanup(&mac_ctx); | |
+ EVP_CIPHER_CTX_free(block_enc); | |
+ EVP_CIPHER_CTX_free(block_dec); | |
+ EVP_CIPHER_CTX_free(stream_enc); | |
+ EVP_CIPHER_CTX_free(stream_dec); | |
+ HMAC_CTX_free(mac_ctx); | |
pthread_mutex_destroy(&mutex); | |
} | |
@@ -288,33 +289,38 @@ void initKey(const shared_ptr<SSLKey> &key, const EVP_CIPHER *_blockCipher, | |
Lock lock(key->mutex); | |
// initialize the cipher context once so that we don't have to do it for | |
// every block.. | |
- EVP_CIPHER_CTX_init(&key->block_enc); | |
- EVP_CIPHER_CTX_init(&key->block_dec); | |
- EVP_CIPHER_CTX_init(&key->stream_enc); | |
- EVP_CIPHER_CTX_init(&key->stream_dec); | |
- | |
- EVP_EncryptInit_ex(&key->block_enc, _blockCipher, NULL, NULL, NULL); | |
- EVP_DecryptInit_ex(&key->block_dec, _blockCipher, NULL, NULL, NULL); | |
- EVP_EncryptInit_ex(&key->stream_enc, _streamCipher, NULL, NULL, NULL); | |
- EVP_DecryptInit_ex(&key->stream_dec, _streamCipher, NULL, NULL, NULL); | |
- | |
- EVP_CIPHER_CTX_set_key_length(&key->block_enc, _keySize); | |
- EVP_CIPHER_CTX_set_key_length(&key->block_dec, _keySize); | |
- EVP_CIPHER_CTX_set_key_length(&key->stream_enc, _keySize); | |
- EVP_CIPHER_CTX_set_key_length(&key->stream_dec, _keySize); | |
- | |
- EVP_CIPHER_CTX_set_padding(&key->block_enc, 0); | |
- EVP_CIPHER_CTX_set_padding(&key->block_dec, 0); | |
- EVP_CIPHER_CTX_set_padding(&key->stream_enc, 0); | |
- EVP_CIPHER_CTX_set_padding(&key->stream_dec, 0); | |
- | |
- EVP_EncryptInit_ex(&key->block_enc, NULL, NULL, KeyData(key), NULL); | |
- EVP_DecryptInit_ex(&key->block_dec, NULL, NULL, KeyData(key), NULL); | |
- EVP_EncryptInit_ex(&key->stream_enc, NULL, NULL, KeyData(key), NULL); | |
- EVP_DecryptInit_ex(&key->stream_dec, NULL, NULL, KeyData(key), NULL); | |
- | |
- HMAC_CTX_init(&key->mac_ctx); | |
- HMAC_Init_ex(&key->mac_ctx, KeyData(key), _keySize, EVP_sha1(), 0); | |
+ key->block_enc = EVP_CIPHER_CTX_new(); | |
+ EVP_CIPHER_CTX_init(key->block_enc); | |
+ key->block_dec = EVP_CIPHER_CTX_new(); | |
+ EVP_CIPHER_CTX_init(key->block_dec); | |
+ key->stream_enc = EVP_CIPHER_CTX_new(); | |
+ EVP_CIPHER_CTX_init(key->stream_enc); | |
+ key->stream_dec = EVP_CIPHER_CTX_new(); | |
+ EVP_CIPHER_CTX_init(key->stream_dec); | |
+ | |
+ EVP_EncryptInit_ex(key->block_enc, _blockCipher, NULL, NULL, NULL); | |
+ EVP_DecryptInit_ex(key->block_dec, _blockCipher, NULL, NULL, NULL); | |
+ EVP_EncryptInit_ex(key->stream_enc, _streamCipher, NULL, NULL, NULL); | |
+ EVP_DecryptInit_ex(key->stream_dec, _streamCipher, NULL, NULL, NULL); | |
+ | |
+ EVP_CIPHER_CTX_set_key_length(key->block_enc, _keySize); | |
+ EVP_CIPHER_CTX_set_key_length(key->block_dec, _keySize); | |
+ EVP_CIPHER_CTX_set_key_length(key->stream_enc, _keySize); | |
+ EVP_CIPHER_CTX_set_key_length(key->stream_dec, _keySize); | |
+ | |
+ EVP_CIPHER_CTX_set_padding(key->block_enc, 0); | |
+ EVP_CIPHER_CTX_set_padding(key->block_dec, 0); | |
+ EVP_CIPHER_CTX_set_padding(key->stream_enc, 0); | |
+ EVP_CIPHER_CTX_set_padding(key->stream_dec, 0); | |
+ | |
+ EVP_EncryptInit_ex(key->block_enc, NULL, NULL, KeyData(key), NULL); | |
+ EVP_DecryptInit_ex(key->block_dec, NULL, NULL, KeyData(key), NULL); | |
+ EVP_EncryptInit_ex(key->stream_enc, NULL, NULL, KeyData(key), NULL); | |
+ EVP_DecryptInit_ex(key->stream_dec, NULL, NULL, KeyData(key), NULL); | |
+ | |
+ key->mac_ctx = HMAC_CTX_new(); | |
+ HMAC_CTX_reset(key->mac_ctx); | |
+ HMAC_Init_ex(key->mac_ctx, KeyData(key), _keySize, EVP_sha1(), 0); | |
} | |
static RLogChannel *CipherInfo = DEF_CHANNEL("info/cipher", Log_Info); | |
@@ -458,8 +459,8 @@ static uint64_t _checksum_64(SSLKey *key, const unsigned char *data, | |
unsigned char md[EVP_MAX_MD_SIZE]; | |
unsigned int mdLen = EVP_MAX_MD_SIZE; | |
- HMAC_Init_ex(&key->mac_ctx, 0, 0, 0, 0); | |
- HMAC_Update(&key->mac_ctx, data, dataLen); | |
+ HMAC_Init_ex(key->mac_ctx, 0, 0, 0, 0); | |
+ HMAC_Update(key->mac_ctx, data, dataLen); | |
if (chainedIV) { | |
// toss in the chained IV as well | |
uint64_t tmp = *chainedIV; | |
@@ -469,10 +470,10 @@ static uint64_t _checksum_64(SSLKey *key, const unsigned char *data, | |
tmp >>= 8; | |
} | |
- HMAC_Update(&key->mac_ctx, h, 8); | |
+ HMAC_Update(key->mac_ctx, h, 8); | |
} | |
- HMAC_Final(&key->mac_ctx, md, &mdLen); | |
+ HMAC_Final(key->mac_ctx, md, &mdLen); | |
rAssert(mdLen >= 8); | |
@@ -639,10 +640,10 @@ void SSL_Cipher::setIVec(unsigned char *ivec, uint64_t seed, | |
} | |
// combine ivec and seed with HMAC | |
- HMAC_Init_ex(&key->mac_ctx, 0, 0, 0, 0); | |
- HMAC_Update(&key->mac_ctx, ivec, _ivLength); | |
- HMAC_Update(&key->mac_ctx, md, 8); | |
- HMAC_Final(&key->mac_ctx, md, &mdLen); | |
+ HMAC_Init_ex(key->mac_ctx, 0, 0, 0, 0); | |
+ HMAC_Update(key->mac_ctx, ivec, _ivLength); | |
+ HMAC_Update(key->mac_ctx, md, 8); | |
+ HMAC_Final(key->mac_ctx, md, &mdLen); | |
rAssert(mdLen >= _ivLength); | |
memcpy(ivec, md, _ivLength); | |
@@ -734,17 +735,17 @@ bool SSL_Cipher::streamEncode(unsigned char *buf, int size, uint64_t iv64, | |
shuffleBytes(buf, size); | |
setIVec(ivec, iv64, key); | |
- EVP_EncryptInit_ex(&key->stream_enc, NULL, NULL, NULL, ivec); | |
- EVP_EncryptUpdate(&key->stream_enc, buf, &dstLen, buf, size); | |
- EVP_EncryptFinal_ex(&key->stream_enc, buf + dstLen, &tmpLen); | |
+ EVP_EncryptInit_ex(key->stream_enc, NULL, NULL, NULL, ivec); | |
+ EVP_EncryptUpdate(key->stream_enc, buf, &dstLen, buf, size); | |
+ EVP_EncryptFinal_ex(key->stream_enc, buf + dstLen, &tmpLen); | |
flipBytes(buf, size); | |
shuffleBytes(buf, size); | |
setIVec(ivec, iv64 + 1, key); | |
- EVP_EncryptInit_ex(&key->stream_enc, NULL, NULL, NULL, ivec); | |
- EVP_EncryptUpdate(&key->stream_enc, buf, &dstLen, buf, size); | |
- EVP_EncryptFinal_ex(&key->stream_enc, buf + dstLen, &tmpLen); | |
+ EVP_EncryptInit_ex(key->stream_enc, NULL, NULL, NULL, ivec); | |
+ EVP_EncryptUpdate(key->stream_enc, buf, &dstLen, buf, size); | |
+ EVP_EncryptFinal_ex(key->stream_enc, buf + dstLen, &tmpLen); | |
dstLen += tmpLen; | |
if (dstLen != size) { | |
@@ -768,17 +769,17 @@ bool SSL_Cipher::streamDecode(unsigned char *buf, int size, uint64_t iv64, | |
int dstLen = 0, tmpLen = 0; | |
setIVec(ivec, iv64 + 1, key); | |
- EVP_DecryptInit_ex(&key->stream_dec, NULL, NULL, NULL, ivec); | |
- EVP_DecryptUpdate(&key->stream_dec, buf, &dstLen, buf, size); | |
- EVP_DecryptFinal_ex(&key->stream_dec, buf + dstLen, &tmpLen); | |
+ EVP_DecryptInit_ex(key->stream_dec, NULL, NULL, NULL, ivec); | |
+ EVP_DecryptUpdate(key->stream_dec, buf, &dstLen, buf, size); | |
+ EVP_DecryptFinal_ex(key->stream_dec, buf + dstLen, &tmpLen); | |
unshuffleBytes(buf, size); | |
flipBytes(buf, size); | |
setIVec(ivec, iv64, key); | |
- EVP_DecryptInit_ex(&key->stream_dec, NULL, NULL, NULL, ivec); | |
- EVP_DecryptUpdate(&key->stream_dec, buf, &dstLen, buf, size); | |
- EVP_DecryptFinal_ex(&key->stream_dec, buf + dstLen, &tmpLen); | |
+ EVP_DecryptInit_ex(key->stream_dec, NULL, NULL, NULL, ivec); | |
+ EVP_DecryptUpdate(key->stream_dec, buf, &dstLen, buf, size); | |
+ EVP_DecryptFinal_ex(key->stream_dec, buf + dstLen, &tmpLen); | |
unshuffleBytes(buf, size); | |
@@ -799,7 +800,7 @@ bool SSL_Cipher::blockEncode(unsigned char *buf, int size, uint64_t iv64, | |
rAssert(key->ivLength == _ivLength); | |
// data must be integer number of blocks | |
- const int blockMod = size % EVP_CIPHER_CTX_block_size(&key->block_enc); | |
+ const int blockMod = size % EVP_CIPHER_CTX_block_size(key->block_enc); | |
if (blockMod != 0) | |
throw ERROR("Invalid data size, not multiple of block size"); | |
@@ -810,9 +811,9 @@ bool SSL_Cipher::blockEncode(unsigned char *buf, int size, uint64_t iv64, | |
int dstLen = 0, tmpLen = 0; | |
setIVec(ivec, iv64, key); | |
- EVP_EncryptInit_ex(&key->block_enc, NULL, NULL, NULL, ivec); | |
- EVP_EncryptUpdate(&key->block_enc, buf, &dstLen, buf, size); | |
- EVP_EncryptFinal_ex(&key->block_enc, buf + dstLen, &tmpLen); | |
+ EVP_EncryptInit_ex(key->block_enc, NULL, NULL, NULL, ivec); | |
+ EVP_EncryptUpdate(key->block_enc, buf, &dstLen, buf, size); | |
+ EVP_EncryptFinal_ex(key->block_enc, buf + dstLen, &tmpLen); | |
dstLen += tmpLen; | |
if (dstLen != size) { | |
@@ -831,7 +832,7 @@ bool SSL_Cipher::blockDecode(unsigned char *buf, int size, uint64_t iv64, | |
rAssert(key->ivLength == _ivLength); | |
// data must be integer number of blocks | |
- const int blockMod = size % EVP_CIPHER_CTX_block_size(&key->block_dec); | |
+ const int blockMod = size % EVP_CIPHER_CTX_block_size(key->block_dec); | |
if (blockMod != 0) | |
throw ERROR("Invalid data size, not multiple of block size"); | |
@@ -842,9 +843,9 @@ bool SSL_Cipher::blockDecode(unsigned char *buf, int size, uint64_t iv64, | |
int dstLen = 0, tmpLen = 0; | |
setIVec(ivec, iv64, key); | |
- EVP_DecryptInit_ex(&key->block_dec, NULL, NULL, NULL, ivec); | |
- EVP_DecryptUpdate(&key->block_dec, buf, &dstLen, buf, size); | |
- EVP_DecryptFinal_ex(&key->block_dec, buf + dstLen, &tmpLen); | |
+ EVP_DecryptInit_ex(key->block_dec, NULL, NULL, NULL, ivec); | |
+ EVP_DecryptUpdate(key->block_dec, buf, &dstLen, buf, size); | |
+ EVP_DecryptFinal_ex(key->block_dec, buf + dstLen, &tmpLen); | |
dstLen += tmpLen; | |
if (dstLen != size) { | |
diff --git a/encfs/SSL_Compat.h b/encfs/SSL_Compat.h | |
new file mode 100644 | |
index 0000000..f7b1629 | |
--- /dev/null | |
+++ b/encfs/SSL_Compat.h | |
@@ -0,0 +1,52 @@ | |
+/***************************************************************************** | |
+ * Author: Rogelio Dominguez Hernandez <rogelio.dominguez@gmail.com> | |
+ * | |
+ ***************************************************************************** | |
+ * Copyright (c) 2016, Rogelio Dominguez Hernandez | |
+ * | |
+ * This program is free software: you can redistribute it and/or modify it | |
+ * under the terms of the GNU Lesser General Public License as published by the | |
+ * Free Software Foundation, either version 3 of the License, or (at your | |
+ * option) any later version. | |
+ * | |
+ * This program 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 Lesser General Public License | |
+ * for more details. | |
+ * | |
+ * You should have received a copy of the GNU Lesser General Public License | |
+ * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
+ */ | |
+ | |
+#ifndef _SSL_Compat_incl_ | |
+#define _SSL_Compat_incl_ | |
+ | |
+// OpenSSL < 1.1.0 | |
+#if OPENSSL_VERSION_NUMBER < 0x10100000L | |
+ | |
+// Equivalent methods | |
+#define EVP_MD_CTX_new EVP_MD_CTX_create | |
+#define EVP_MD_CTX_free EVP_MD_CTX_destroy | |
+#define HMAC_CTX_reset HMAC_CTX_cleanup | |
+ | |
+// Missing methods (based on 1.1.0 versions) | |
+HMAC_CTX *HMAC_CTX_new(void) | |
+{ | |
+ HMAC_CTX *ctx = (HMAC_CTX *)OPENSSL_malloc(sizeof(HMAC_CTX)); | |
+ if (ctx != NULL) { | |
+ memset(ctx, 0, sizeof(HMAC_CTX)); | |
+ HMAC_CTX_reset(ctx); | |
+ } | |
+ return ctx; | |
+} | |
+ | |
+void HMAC_CTX_free(HMAC_CTX *ctx) | |
+{ | |
+ if (ctx != NULL) { | |
+ HMAC_CTX_cleanup(ctx); | |
+ OPENSSL_free(ctx); | |
+ } | |
+} | |
+#endif | |
+ | |
+#endif | |
diff --git a/encfs/encfssh b/encfs/encfssh | |
old mode 100755 | |
new mode 100644 |
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