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sqlcipher
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Merge branch 'eoger-nss-crypto-impl' into prerelease

This commit is contained in:
Stephen Lombardo 2019-07-16 16:34:41 -04:00
parent b7c53c8d29 d211c296e6
commit 95bedd310a
11 changed files with 406 additions and 1 deletions
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6
Makefile.in
View File

@ -148,14 +148,16 @@ CRYPTOLIBOBJ = \
crypto_impl.lo \
crypto_openssl.lo \
crypto_libtomcrypt.lo \
crypto_nss.lo \
crypto_cc.lo
CRYPTOSRC = \
$(TOP)/src/crypto.h \
$(TOP)/src/sqlcipher.h \
$(TOP)/src/crypto.c \
$(TOP)/src/crypto_impl.c \
$(TOP)/src/crypto_libtomcrypt.c \
$(TOP)/src/crypto_nss.c \
$(TOP)/src/crypto_openssl.c \
$(TOP)/src/crypto_cc.c
@ -820,6 +822,8 @@ crypto_impl.lo: $(TOP)/src/crypto_impl.c $(HDR)
$(LTCOMPILE) -c $(TOP)/src/crypto_impl.c
crypto_openssl.lo: $(TOP)/src/crypto_openssl.c $(HDR)
$(LTCOMPILE) -c $(TOP)/src/crypto_openssl.c
crypto_nss.lo: $(TOP)/src/crypto_nss.c $(HDR)
$(LTCOMPILE) -c $(TOP)/src/crypto_nss.c
crypto_libtomcrypt.lo: $(TOP)/src/crypto_libtomcrypt.c $(HDR)
$(LTCOMPILE) -c $(TOP)/src/crypto_libtomcrypt.c
crypto_cc.lo: $(TOP)/src/crypto_cc.c $(HDR)

1
Makefile.msc
View File

@ -1270,6 +1270,7 @@ SRC00 = \
$(TOP)\src\crypto_cc.c \
$(TOP)\src\crypto_impl.c \
$(TOP)\src\crypto_libtomcrypt.c \
$(TOP)\src\crypto_nss.c \
$(TOP)\src\crypto_openssl.c \
$(TOP)\src\crypto.h \
$(TOP)\src\sqlcipher.h \

3
config.h.in
View File

@ -33,6 +33,9 @@
/* Define to 1 if you have the `crypto' library (-lcrypto). */
#undef HAVE_LIBCRYPTO
/* Define to 1 if you have the `nss3' library (-lnss3). */
#undef HAVE_LIBNSS3
/* Define to 1 if you have the `tomcrypt' library (-ltomcrypt). */
#undef HAVE_LIBTOMCRYPT

54
configure vendored
View File

@ -12029,6 +12029,59 @@ else
fi
else
if test "$crypto_lib" = "nss"; then
CFLAGS+=" -DSQLCIPHER_CRYPTO_NSS"
BUILD_CFLAGS+=" -DSQLCIPHER_CRYPTO_NSS"
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: nss3" >&5
$as_echo "nss3" >&6; }
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for PK11_Decrypt in -lnss3" >&5
$as_echo_n "checking for PK11_Decrypt in -lnss3... " >&6; }
if ${ac_cv_lib_nss3_PK11_Decrypt+:} false; then :
$as_echo_n "(cached) " >&6
else
ac_check_lib_save_LIBS=$LIBS
LIBS="-lnss3 $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
/* Override any GCC internal prototype to avoid an error.
Use char because int might match the return type of a GCC
builtin and then its argument prototype would still apply. */
#ifdef __cplusplus
extern "C"
#endif
char PK11_Decrypt ();
int
main ()
{
return PK11_Decrypt ();
;
return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
ac_cv_lib_nss3_PK11_Decrypt=yes
else
ac_cv_lib_nss3_PK11_Decrypt=no
fi
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_nss3_PK11_Decrypt" >&5
$as_echo "$ac_cv_lib_nss3_PK11_Decrypt" >&6; }
if test "x$ac_cv_lib_nss3_PK11_Decrypt" = xyes; then :
cat >>confdefs.h <<_ACEOF
#define HAVE_LIBNSS3 1
_ACEOF
LIBS="-lnss3 $LIBS"
else
as_fn_error $? "Library crypto not found. Install nss!\"" "$LINENO" 5
fi
else
CFLAGS+=" -DSQLCIPHER_CRYPTO_OPENSSL"
BUILD_CFLAGS+=" -DSQLCIPHER_CRYPTO_OPENSSL"
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: openssl" >&5
@ -12080,6 +12133,7 @@ else
as_fn_error $? "Library crypto not found. Install openssl!\"" "$LINENO" 5
fi
fi
fi
fi
fi

8
configure.ac
View File

@ -219,11 +219,19 @@ else
AC_CHECK_LIB([tomcrypt], [register_cipher], ,
AC_MSG_ERROR([Library crypto not found. Install libtomcrypt!"]))
else
if test "$crypto_lib" = "nss"; then
CFLAGS+=" -DSQLCIPHER_CRYPTO_NSS"
BUILD_CFLAGS+=" -DSQLCIPHER_CRYPTO_NSS"
AC_MSG_RESULT([nss3])
AC_CHECK_LIB([nss3], [PK11_Decrypt], ,
AC_MSG_ERROR([Library crypto not found. Install nss!"]))
else
CFLAGS+=" -DSQLCIPHER_CRYPTO_OPENSSL"
BUILD_CFLAGS+=" -DSQLCIPHER_CRYPTO_OPENSSL"
AC_MSG_RESULT([openssl])
AC_CHECK_LIB([crypto], [HMAC_Init_ex], ,
AC_MSG_ERROR([Library crypto not found. Install openssl!"]))
fi
fi
fi
fi

1
src/crypto.h
View File

@ -48,6 +48,7 @@ void sqlite3pager_reset(Pager *pPager);
#if !defined (SQLCIPHER_CRYPTO_CC) \
&& !defined (SQLCIPHER_CRYPTO_LIBTOMCRYPT) \
&& !defined (SQLCIPHER_CRYPTO_NSS) \
&& !defined (SQLCIPHER_CRYPTO_OPENSSL)
#define SQLCIPHER_CRYPTO_OPENSSL
#endif

3
src/crypto_impl.c
View File

@ -205,6 +205,9 @@ void sqlcipher_activate() {
#elif defined (SQLCIPHER_CRYPTO_LIBTOMCRYPT)
extern int sqlcipher_ltc_setup(sqlcipher_provider *p);
sqlcipher_ltc_setup(p);
#elif defined (SQLCIPHER_CRYPTO_NSS)
extern int sqlcipher_nss_setup(sqlcipher_provider *p);
sqlcipher_nss_setup(p);
#elif defined (SQLCIPHER_CRYPTO_OPENSSL)
extern int sqlcipher_openssl_setup(sqlcipher_provider *p);
sqlcipher_openssl_setup(p);

314
src/crypto_nss.c Normal file
View File

@ -0,0 +1,314 @@
/*
** SQLCipher
** http://sqlcipher.net
**
** Copyright (c) 2008 - 2013, ZETETIC LLC
** All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in the
** documentation and/or other materials provided with the distribution.
** * Neither the name of the ZETETIC LLC nor the
** names of its contributors may be used to endorse or promote products
** derived from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY ZETETIC LLC ''AS IS'' AND ANY
** EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
** WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
** DISCLAIMED. IN NO EVENT SHALL ZETETIC LLC BE LIABLE FOR ANY
** DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
** (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
** LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
** ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
** SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**
*/
/* BEGIN SQLCIPHER */
#ifdef SQLITE_HAS_CODEC
#ifdef SQLCIPHER_CRYPTO_NSS
#include "crypto.h"
#include "sqlcipher.h"
#include <nss/blapit.h>
#include <nss/nss.h>
#include <nss/pk11pub.h>
static NSSInitContext* nss_init_context = NULL;
static unsigned int nss_init_count = 0;
static sqlite3_mutex* nss_rand_mutex = NULL;
int sqlcipher_nss_setup(sqlcipher_provider *p);
static int sqlcipher_nss_activate(void *ctx) {
CODEC_TRACE_MUTEX("sqlcipher_nss_activate: entering static master mutex\n");
sqlite3_mutex_enter(sqlite3_mutex_alloc(SQLITE_MUTEX_STATIC_MASTER));
CODEC_TRACE_MUTEX("sqlcipher_nss_activate: entered static master mutex\n");
if (nss_init_context == NULL) {
nss_init_context = NSS_InitContext("", "", "", "", NULL,
NSS_INIT_READONLY | NSS_INIT_NOCERTDB | NSS_INIT_NOMODDB |
NSS_INIT_FORCEOPEN | NSS_INIT_OPTIMIZESPACE | NSS_INIT_NOROOTINIT);
}
nss_init_count++;
CODEC_TRACE_MUTEX("sqlcipher_nss_activate: leaving static master mutex\n");
sqlite3_mutex_leave(sqlite3_mutex_alloc(SQLITE_MUTEX_STATIC_MASTER));
CODEC_TRACE_MUTEX("sqlcipher_nss_activate: left static master mutex\n");
return SQLITE_OK;
}
static int sqlcipher_nss_deactivate(void *ctx) {
CODEC_TRACE_MUTEX("sqlcipher_nss_deactivate: entering static master mutex\n");
sqlite3_mutex_enter(sqlite3_mutex_alloc(SQLITE_MUTEX_STATIC_MASTER));
CODEC_TRACE_MUTEX("sqlcipher_nss_deactivate: entered static master mutex\n");
nss_init_count--;
if (nss_init_count == 0 && nss_init_context != NULL) {
NSS_ShutdownContext(nss_init_context);
nss_init_context = NULL;
}
CODEC_TRACE_MUTEX("sqlcipher_nss_deactivate: leaving static master mutex\n");
sqlite3_mutex_leave(sqlite3_mutex_alloc(SQLITE_MUTEX_STATIC_MASTER));
CODEC_TRACE_MUTEX("sqlcipher_nss_deactivate: left static master mutex\n");
return SQLITE_OK;
}
static int sqlcipher_nss_add_random(void *ctx, void *buffer, int length) {
return SQLITE_OK;
}
/* generate a defined number of random bytes */
static int sqlcipher_nss_random (void *ctx, void *buffer, int length) {
// PK11_GenerateRandom should be thread-safe.
return (PK11_GenerateRandom((unsigned char *)buffer, length) == SECSuccess) ? SQLITE_OK : SQLITE_ERROR;
}
static const char* sqlcipher_nss_get_provider_name(void *ctx) {
return "nss";
}
static const char* sqlcipher_nss_get_provider_version(void *ctx) {
return NSS_GetVersion();
}
static const char* sqlcipher_nss_get_cipher(void *ctx) {
return "aes-256-cbc";
}
static int sqlcipher_nss_get_key_sz(void *ctx) {
return AES_256_KEY_LENGTH;
}
static int sqlcipher_nss_get_iv_sz(void *ctx) {
return AES_BLOCK_SIZE;
}
static int sqlcipher_nss_get_block_sz(void *ctx) {
return AES_BLOCK_SIZE;
}
static int sqlcipher_nss_get_hmac_sz(void *ctx, int algorithm) {
switch(algorithm) {
case SQLCIPHER_HMAC_SHA1:
return SHA1_LENGTH;
break;
case SQLCIPHER_HMAC_SHA256:
return SHA256_LENGTH;
break;
case SQLCIPHER_HMAC_SHA512:
return SHA512_LENGTH;
break;
default:
return 0;
}
}
static int sqlcipher_nss_hmac(void *ctx, int algorithm, unsigned char *hmac_key, int key_sz, unsigned char *in, int in_sz, unsigned char *in2, int in2_sz, unsigned char *out) {
int rc = SQLITE_OK;
unsigned int length;
unsigned int outLen;
PK11Context* context = NULL;
PK11SlotInfo * slot = NULL;
PK11SymKey* symKey = NULL;
if(in == NULL) goto error;
CK_MECHANISM_TYPE mech;
switch(algorithm) {
case SQLCIPHER_HMAC_SHA1:
mech = CKM_SHA_1_HMAC;
break;
case SQLCIPHER_HMAC_SHA256:
mech = CKM_SHA256_HMAC;
break;
case SQLCIPHER_HMAC_SHA512:
mech = CKM_SHA512_HMAC;
break;
default:
goto error;
}
length = sqlcipher_nss_get_hmac_sz(ctx, algorithm);
slot = PK11_GetInternalSlot();
if (slot == NULL) goto error;
SECItem keyItem;
keyItem.data = hmac_key;
keyItem.len = key_sz;
symKey = PK11_ImportSymKey(slot, mech, PK11_OriginUnwrap,
CKA_SIGN, &keyItem, NULL);
if (symKey == NULL) goto error;
SECItem noParams;
noParams.data = 0;
noParams.len = 0;
context = PK11_CreateContextBySymKey(mech, CKA_SIGN, symKey, &noParams);
if (context == NULL) goto error;
if (PK11_DigestBegin(context) != SECSuccess) goto error;
if (PK11_DigestOp(context, in, in_sz) != SECSuccess) goto error;
if (in2 != NULL) {
if (PK11_DigestOp(context, in2, in2_sz) != SECSuccess) goto error;
}
if (PK11_DigestFinal(context, out, &outLen, length) != SECSuccess) goto error;
goto cleanup;
error:
rc = SQLITE_ERROR;
cleanup:
if (context) PK11_DestroyContext(context, PR_TRUE);
if (symKey) PK11_FreeSymKey(symKey);
if (slot) PK11_FreeSlot(slot);
return rc;
}
static int sqlcipher_nss_kdf(void *ctx, int algorithm, const unsigned char *pass, int pass_sz, unsigned char* salt, int salt_sz, int workfactor, int key_sz, unsigned char *key) {
int rc = SQLITE_OK;
PK11SlotInfo * slot = NULL;
SECAlgorithmID * algid = NULL;
PK11SymKey* symKey = NULL;
SECOidTag oidtag;
switch(algorithm) {
case SQLCIPHER_HMAC_SHA1:
oidtag = SEC_OID_HMAC_SHA1;
break;
case SQLCIPHER_HMAC_SHA256:
oidtag = SEC_OID_HMAC_SHA256;
break;
case SQLCIPHER_HMAC_SHA512:
oidtag = SEC_OID_HMAC_SHA512;
break;
default:
goto error;
}
SECItem secSalt;
secSalt.data = salt;
secSalt.len = salt_sz;
// Always pass SEC_OID_HMAC_SHA1 (i.e. PBMAC1) as this parameter
// is unused for key generation. It is currently only used
// for PBKDF2 authentication or key (un)wrapping when specifying an
// encryption algorithm (PBES2).
algid = PK11_CreatePBEV2AlgorithmID(SEC_OID_PKCS5_PBKDF2, SEC_OID_HMAC_SHA1,
oidtag, key_sz, workfactor, &secSalt);
if (algid == NULL) goto error;
slot = PK11_GetInternalSlot();
if (slot == NULL) goto error;
SECItem pwItem;
pwItem.data = (unsigned char *) pass; // PK11_PBEKeyGen doesn't modify the key.
pwItem.len = pass_sz;
symKey = PK11_PBEKeyGen(slot, algid, &pwItem, PR_FALSE, NULL);
if (symKey == NULL) goto error;
if (PK11_ExtractKeyValue(symKey) != SECSuccess) goto error;
// No need to free keyData as it is a buffer managed by symKey.
SECItem* keyData = PK11_GetKeyData(symKey);
if (keyData == NULL) goto error;
memcpy(key, keyData->data, key_sz);
goto cleanup;
error:
rc = SQLITE_ERROR;
cleanup:
if (slot) PK11_FreeSlot(slot);
if (algid) SECOID_DestroyAlgorithmID(algid, PR_TRUE);
if (symKey) PK11_FreeSymKey(symKey);
return rc;
}
static int sqlcipher_nss_cipher(void *ctx, int mode, unsigned char *key, int key_sz, unsigned char *iv, unsigned char *in, int in_sz, unsigned char *out) {
int rc = SQLITE_OK;
PK11SlotInfo * slot = NULL;
PK11SymKey* symKey = NULL;
unsigned int outLen;
SECItem params;
params.data = iv;
params.len = sqlcipher_nss_get_iv_sz(ctx);
slot = PK11_GetInternalSlot();
if (slot == NULL) goto error;
SECItem keyItem;
keyItem.data = key;
keyItem.len = key_sz;
symKey = PK11_ImportSymKey(slot, CKM_AES_CBC, PK11_OriginUnwrap,
CKA_ENCRYPT, &keyItem, NULL);
if (symKey == NULL) goto error;
SECStatus rv;
if (mode == CIPHER_ENCRYPT) {
rv = PK11_Encrypt(symKey, CKM_AES_CBC, &params, out, &outLen,
in_sz + 16, in, in_sz);
} else {
rv = PK11_Decrypt(symKey, CKM_AES_CBC, &params, out, &outLen,
in_sz + 16, in, in_sz);
}
if (rv != SECSuccess) goto error;
goto cleanup;
error:
rc = SQLITE_ERROR;
cleanup:
if (slot) PK11_FreeSlot(slot);
if (symKey) PK11_FreeSymKey(symKey);
return rc;
}
static int sqlcipher_nss_ctx_copy(void *target_ctx, void *source_ctx) {
return SQLITE_OK;
}
static int sqlcipher_nss_ctx_cmp(void *c1, void *c2) {
return 1; /* always indicate contexts are the same */
}
static int sqlcipher_nss_ctx_init(void **ctx) {
sqlcipher_nss_activate(NULL);
return SQLITE_OK;
}
static int sqlcipher_nss_ctx_free(void **ctx) {
sqlcipher_nss_deactivate(NULL);
return SQLITE_OK;
}
static int sqlcipher_nss_fips_status(void *ctx) {
return 0;
}
int sqlcipher_nss_setup(sqlcipher_provider *p) {
p->activate = sqlcipher_nss_activate;
p->deactivate = sqlcipher_nss_deactivate;
p->random = sqlcipher_nss_random;
p->get_provider_name = sqlcipher_nss_get_provider_name;
p->hmac = sqlcipher_nss_hmac;
p->kdf = sqlcipher_nss_kdf;
p->cipher = sqlcipher_nss_cipher;
p->get_cipher = sqlcipher_nss_get_cipher;
p->get_key_sz = sqlcipher_nss_get_key_sz;
p->get_iv_sz = sqlcipher_nss_get_iv_sz;
p->get_block_sz = sqlcipher_nss_get_block_sz;
p->get_hmac_sz = sqlcipher_nss_get_hmac_sz;
p->ctx_copy = sqlcipher_nss_ctx_copy;
p->ctx_cmp = sqlcipher_nss_ctx_cmp;
p->ctx_init = sqlcipher_nss_ctx_init;
p->ctx_free = sqlcipher_nss_ctx_free;
p->add_random = sqlcipher_nss_add_random;
p->fips_status = sqlcipher_nss_fips_status;
p->get_provider_version = sqlcipher_nss_get_provider_version;
return SQLITE_OK;
}
#endif
#endif
/* END SQLCIPHER */

10
test/sqlcipher-pragmas.test
View File

@ -377,6 +377,16 @@ if_built_with_commoncrypto verify-default-cipher {
db close
file delete -force test.db
if_built_with_nss verify-default-cipher {
sqlite_orig db test.db
execsql {
PRAGMA key='test';
PRAGMA cipher;
}
} {aes-256-cbc}
db close
file delete -force test.db
do_test verify-cipher_settings_default {
sqlite_orig db test.db
execsql {

6
test/sqlcipher.tcl
View File

@ -85,6 +85,12 @@ proc if_built_with_commoncrypto {name cmd expected} {
}
}
proc if_built_with_nss {name cmd expected} {
if {[get_cipher_provider] == "nss"} {
do_test $name $cmd $expected
}
}
proc cmpFilesChunked {file1 file2 {chunksize 16384}} {
set f1 [open $file1]; fconfigure $f1 -translation binary
set f2 [open $file2]; fconfigure $f2 -translation binary

1
tool/mksqlite3c.tcl
View File

@ -300,6 +300,7 @@ foreach file {
crypto.c
crypto_impl.c
crypto_libtomcrypt.c
crypto_nss.c
crypto_openssl.c
crypto_cc.c