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* configure.in: Recognize --enable-nss-crypt.
* config.make.in: Add nss-crypt entry. * crypt/Makefile: If nss-crypt==yes, don't build md5.c, sha256.c, sha512.c. Don't run md5test, sha256test, sha512test. Pass -DUSE_NSS and include path for NSS directory to compiler for md5-crypt, sha256-crypt, sha512-crypt. Link libcrypt.so with -lfreebl3. * crypt/md5-crypt.c: If USE_NSS is defined, don't use local hash function implementation, use NSS. Introduce wrappers around the hash function calls. Little code size optimization. * crypt/sha256-crypt.c: Likewise. * crypt/sha512-crypt.c: Likewise. * scripts/check-local-headers.sh: Ignore nss3 directory. * configure.in: Rename pic_default to libc_cv_pic_default. * config.make.in: Likewise.
This commit is contained in:
Ulrich Drepper
parent
900d7961d4
commit
ff886b82a2
18
ChangeLog
18
ChangeLog
@ -1,3 +1,21 @@
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2009-04-02 Ulrich Drepper <drepper@redhat.com>
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* configure.in: Recognize --enable-nss-crypt.
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* config.make.in: Add nss-crypt entry.
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* crypt/Makefile: If nss-crypt==yes, don't build md5.c, sha256.c,
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sha512.c. Don't run md5test, sha256test, sha512test. Pass -DUSE_NSS
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and include path for NSS directory to compiler for md5-crypt,
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sha256-crypt, sha512-crypt. Link libcrypt.so with -lfreebl3.
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* crypt/md5-crypt.c: If USE_NSS is defined, don't use local hash
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function implementation, use NSS. Introduce wrappers around the
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hash function calls. Little code size optimization.
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* crypt/sha256-crypt.c: Likewise.
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* crypt/sha512-crypt.c: Likewise.
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* scripts/check-local-headers.sh: Ignore nss3 directory.
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* configure.in: Rename pic_default to libc_cv_pic_default.
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* config.make.in: Likewise.
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2009-04-01 Roland McGrath <roland@redhat.com>
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* elf/elf.h (R_SPARC_GLOB_JMP): New macro.
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43
configure.in
43
configure.in
@ -272,6 +272,41 @@ AC_ARG_ENABLE([experimental-malloc],
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[])
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AC_SUBST(experimental_malloc)
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AC_ARG_ENABLE([nss-crypt],
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AC_HELP_STRING([--enable-nss-crypt],
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[enable libcrypt to use nss]),
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[nss_crypt=$enableval],
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[nss_crypt=no])
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if test x$nss_crypt = xyes; then
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nss_includes=-I$(nss-config --includedir 2>/dev/null)
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if test $? -ne 0; then
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AC_MSG_ERROR([cannot find include directory with nss-config])
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fi
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old_CFLAGS="$CFLAGS"
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CFLAGS="$CFLAGS $nss_includes"
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AC_COMPILE_IFELSE([typedef int PRBool;
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#include <hasht.h>
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#include <nsslowhash.h>
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void f (void) { NSSLOW_Init (); }],
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libc_cv_nss_crypt=yes,
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AC_MSG_ERROR([
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cannot find NSS headers with lowlevel hash function interfaces]))
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old_LIBS="$LIBS"
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LIBS="$LIBS -lfreebl3"
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AC_LINK_IFELSE([AC_LANG_PROGRAM([typedef int PRBool;
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#include <hasht.h>
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#include <nsslowhash.h>],
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[NSSLOW_Init();])],
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libc_cv_nss_crypt=yes,
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AC_MSG_ERROR([
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cannot link program using lowlevel NSS hash functions]))
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CFLAGS="$old_CFLAGS"
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LIBS="$old_LIBS"
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else
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libc_cv_nss_crypt=no
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fi
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AC_SUBST(libc_cv_nss_crypt)
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AC_CANONICAL_HOST
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# The way shlib-versions is used to generate soversions.mk uses a
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@ -2241,18 +2276,18 @@ if test $shared = default; then
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shared=$elf
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fi
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AC_CACHE_CHECK([whether -fPIC is default], pic_default,
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[pic_default=yes
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AC_CACHE_CHECK([whether -fPIC is default], libc_cv_pic_default,
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[libc_cv_pic_default=yes
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cat > conftest.c <<EOF
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#if defined __PIC__ || defined __pic__ || defined PIC || defined pic
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# error PIC is default.
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#endif
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EOF
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if eval "${CC-cc} -S conftest.c 2>&AS_MESSAGE_LOG_FD 1>&AS_MESSAGE_LOG_FD"; then
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pic_default=no
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libc_cv_pic_default=no
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fi
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rm -f conftest.*])
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AC_SUBST(pic_default)
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AC_SUBST(libc_cv_pic_default)
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AC_SUBST(profile)
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AC_SUBST(omitfp)
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@ -1,4 +1,4 @@
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# Copyright (C) 1996, 2000, 2001, 2007 Free Software Foundation, Inc.
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# Copyright (C) 1996, 2000, 2001, 2007, 2009 Free Software Foundation, Inc.
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# This file is part of the GNU C Library.
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# The GNU C Library is free software; you can redistribute it and/or
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@ -26,10 +26,10 @@ headers := crypt.h
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extra-libs := libcrypt
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extra-libs-others := $(extra-libs)
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libcrypt-routines := crypt-entry md5-crypt md5 sha256-crypt sha256 \
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sha512-crypt sha512 crypt crypt_util
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libcrypt-routines := crypt-entry md5-crypt sha256-crypt sha512-crypt crypt \
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crypt_util
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tests := cert md5test md5c-test sha256test sha256c-test sha512test sha512c-test
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tests := cert md5c-test sha256c-test sha512c-test
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distribute := ufc-crypt.h crypt-private.h ufc.c speeds.c README.ufc-crypt \
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Banner md5.h sha256.h sha512.h
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@ -40,9 +40,20 @@ ifeq ($(crypt-in-libc),yes)
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routines += $(libcrypt-routines)
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endif
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ifeq ($(nss-crypt),yes)
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CPPFLAGS-sha256-crypt.c = -DUSE_NSS -I$(shell nss-config --includedir)
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CPPFLAGS-sha512-crypt.c = -DUSE_NSS -I$(shell nss-config --includedir)
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CPPFLAGS-md5-crypt.c = -DUSE_NSS -I$(shell nss-config --includedir)
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$(objpfx)libcrypt.so: -lfreebl3
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else
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libcrypt-routines += md5 sha256 sha512
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tests += md5test sha256test sha512test
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$(objpfx)md5test: $(objpfx)md5.o
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$(objpfx)sha256test: $(objpfx)sha256.o
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$(objpfx)sha512test: $(objpfx)sha512.o
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endif
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include ../Rules
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@ -1,6 +1,6 @@
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/* One way encryption based on MD5 sum.
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Compatible with the behavior of MD5 crypt introduced in FreeBSD 2.0.
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Copyright (C) 1996, 1997, 1999, 2000, 2001, 2002, 2004
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Copyright (C) 1996, 1997, 1999, 2000, 2001, 2002, 2004, 2009
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Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
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@ -29,6 +29,52 @@
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#include "md5.h"
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#ifdef USE_NSS
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typedef int PRBool;
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# include <hasht.h>
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# include <nsslowhash.h>
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# define md5_init_ctx(ctxp, nss_ctxp) \
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do \
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{ \
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if (((nss_ctxp = NSSLOWHASH_NewContext (nss_ictx, HASH_AlgMD5)) \
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== NULL)) \
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{ \
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if (nss_ctx != NULL) \
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NSSLOWHASH_Destroy (nss_ctx); \
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if (nss_alt_ctx != NULL) \
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NSSLOWHASH_Destroy (nss_alt_ctx); \
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return NULL; \
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} \
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NSSLOWHASH_Begin (nss_ctxp); \
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} \
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while (0)
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# define md5_process_bytes(buf, len, ctxp, nss_ctxp) \
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NSSLOWHASH_Update (nss_ctxp, (const unsigned char *) buf, len)
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# define md5_finish_ctx(ctxp, nss_ctxp, result) \
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do \
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{ \
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unsigned int ret; \
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NSSLOWHASH_End (nss_ctxp, result, &ret, sizeof (result)); \
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assert (ret == sizeof (result)); \
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NSSLOWHASH_Destroy (nss_ctxp); \
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nss_ctxp = NULL; \
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} \
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while (0)
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#else
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# define md5_init_ctx(ctxp, nss_ctxp) \
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__md5_init_ctx (ctxp)
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# define md5_process_bytes(buf, len, ctxp, nss_ctxp) \
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__md5_process_bytes(buf, len, ctxp)
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# define md5_finish_ctx(ctxp, nss_ctxp, result) \
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__md5_finish_ctx (ctxp, result)
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#endif
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/* Define our magic string to mark salt for MD5 "encryption"
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replacement. This is meant to be the same as for other MD5 based
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encryption implementations. */
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@ -56,8 +102,6 @@ __md5_crypt_r (key, salt, buffer, buflen)
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{
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unsigned char alt_result[16]
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__attribute__ ((__aligned__ (__alignof__ (md5_uint32))));
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struct md5_ctx ctx;
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struct md5_ctx alt_ctx;
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size_t salt_len;
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size_t key_len;
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size_t cnt;
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@ -94,43 +138,56 @@ __md5_crypt_r (key, salt, buffer, buflen)
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assert ((salt - (char *) 0) % __alignof__ (md5_uint32) == 0);
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}
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#ifdef USE_NSS
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/* Initialize libfreebl3. */
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NSSLOWInitContext *nss_ictx = NSSLOW_Init ();
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if (nss_ictx == NULL)
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return NULL;
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NSSLOWHASHContext *nss_ctx = NULL;
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NSSLOWHASHContext *nss_alt_ctx = NULL;
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#else
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struct md5_ctx ctx;
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struct md5_ctx alt_ctx;
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#endif
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/* Prepare for the real work. */
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__md5_init_ctx (&ctx);
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md5_init_ctx (&ctx, nss_ctx);
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/* Add the key string. */
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__md5_process_bytes (key, key_len, &ctx);
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md5_process_bytes (key, key_len, &ctx, nss_ctx);
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/* Because the SALT argument need not always have the salt prefix we
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add it separately. */
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__md5_process_bytes (md5_salt_prefix, sizeof (md5_salt_prefix) - 1, &ctx);
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md5_process_bytes (md5_salt_prefix, sizeof (md5_salt_prefix) - 1,
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&ctx, nss_ctx);
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/* The last part is the salt string. This must be at most 8
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characters and it ends at the first `$' character (for
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compatibility with existing implementations). */
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__md5_process_bytes (salt, salt_len, &ctx);
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md5_process_bytes (salt, salt_len, &ctx, nss_ctx);
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/* Compute alternate MD5 sum with input KEY, SALT, and KEY. The
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final result will be added to the first context. */
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__md5_init_ctx (&alt_ctx);
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md5_init_ctx (&alt_ctx, nss_alt_ctx);
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/* Add key. */
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__md5_process_bytes (key, key_len, &alt_ctx);
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md5_process_bytes (key, key_len, &alt_ctx, nss_alt_ctx);
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/* Add salt. */
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__md5_process_bytes (salt, salt_len, &alt_ctx);
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md5_process_bytes (salt, salt_len, &alt_ctx, nss_alt_ctx);
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/* Add key again. */
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__md5_process_bytes (key, key_len, &alt_ctx);
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md5_process_bytes (key, key_len, &alt_ctx, nss_alt_ctx);
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/* Now get result of this (16 bytes) and add it to the other
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context. */
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__md5_finish_ctx (&alt_ctx, alt_result);
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md5_finish_ctx (&alt_ctx, nss_alt_ctx, alt_result);
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/* Add for any character in the key one byte of the alternate sum. */
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for (cnt = key_len; cnt > 16; cnt -= 16)
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__md5_process_bytes (alt_result, 16, &ctx);
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__md5_process_bytes (alt_result, cnt, &ctx);
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md5_process_bytes (alt_result, 16, &ctx, nss_ctx);
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md5_process_bytes (alt_result, cnt, &ctx, nss_ctx);
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/* For the following code we need a NUL byte. */
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*alt_result = '\0';
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@ -140,11 +197,12 @@ __md5_crypt_r (key, salt, buffer, buflen)
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bit the first character of the key. This does not seem to be
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what was intended but we have to follow this to be compatible. */
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for (cnt = key_len; cnt > 0; cnt >>= 1)
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__md5_process_bytes ((cnt & 1) != 0 ? (const char *) alt_result : key, 1,
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&ctx);
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md5_process_bytes ((cnt & 1) != 0
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? (const void *) alt_result : (const void *) key, 1,
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&ctx, nss_ctx);
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/* Create intermediate result. */
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__md5_finish_ctx (&ctx, alt_result);
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md5_finish_ctx (&ctx, nss_ctx, alt_result);
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/* Now comes another weirdness. In fear of password crackers here
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comes a quite long loop which just processes the output of the
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@ -152,32 +210,37 @@ __md5_crypt_r (key, salt, buffer, buflen)
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for (cnt = 0; cnt < 1000; ++cnt)
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{
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/* New context. */
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__md5_init_ctx (&ctx);
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md5_init_ctx (&ctx, nss_ctx);
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/* Add key or last result. */
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if ((cnt & 1) != 0)
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__md5_process_bytes (key, key_len, &ctx);
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md5_process_bytes (key, key_len, &ctx, nss_ctx);
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else
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__md5_process_bytes (alt_result, 16, &ctx);
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md5_process_bytes (alt_result, 16, &ctx, nss_ctx);
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/* Add salt for numbers not divisible by 3. */
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if (cnt % 3 != 0)
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__md5_process_bytes (salt, salt_len, &ctx);
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md5_process_bytes (salt, salt_len, &ctx, nss_ctx);
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/* Add key for numbers not divisible by 7. */
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if (cnt % 7 != 0)
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__md5_process_bytes (key, key_len, &ctx);
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md5_process_bytes (key, key_len, &ctx, nss_ctx);
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/* Add key or last result. */
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if ((cnt & 1) != 0)
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__md5_process_bytes (alt_result, 16, &ctx);
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md5_process_bytes (alt_result, 16, &ctx, nss_ctx);
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else
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__md5_process_bytes (key, key_len, &ctx);
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md5_process_bytes (key, key_len, &ctx, nss_ctx);
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/* Create intermediate result. */
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__md5_finish_ctx (&ctx, alt_result);
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md5_finish_ctx (&ctx, nss_ctx, alt_result);
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}
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#ifdef USE_NSS
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/* Free libfreebl3 resources. */
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NSSLOW_Shutdown (nss_ictx);
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#endif
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/* Now we can construct the result string. It consists of three
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parts. */
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cp = __stpncpy (buffer, md5_salt_prefix, MAX (0, buflen));
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@ -192,18 +255,17 @@ __md5_crypt_r (key, salt, buffer, buflen)
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--buflen;
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}
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#define b64_from_24bit(B2, B1, B0, N) \
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do { \
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unsigned int w = ((B2) << 16) | ((B1) << 8) | (B0); \
|
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int n = (N); \
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while (n-- > 0 && buflen > 0) \
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{ \
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*cp++ = b64t[w & 0x3f]; \
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--buflen; \
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w >>= 6; \
|
||||
} \
|
||||
} while (0)
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|
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void b64_from_24bit (unsigned int b2, unsigned int b1, unsigned int b0,
|
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int n)
|
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{
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unsigned int w = (b2 << 16) | (b1 << 8) | b0;
|
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while (n-- > 0 && buflen > 0)
|
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{
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*cp++ = b64t[w & 0x3f];
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--buflen;
|
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w >>= 6;
|
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}
|
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}
|
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|
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b64_from_24bit (alt_result[0], alt_result[6], alt_result[12], 4);
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b64_from_24bit (alt_result[1], alt_result[7], alt_result[13], 4);
|
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@ -223,10 +285,12 @@ __md5_crypt_r (key, salt, buffer, buflen)
|
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attaching to processes or reading core dumps cannot get any
|
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information. We do it in this way to clear correct_words[]
|
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inside the MD5 implementation as well. */
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#ifndef USE_NSS
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__md5_init_ctx (&ctx);
|
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__md5_finish_ctx (&ctx, alt_result);
|
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memset (&ctx, '\0', sizeof (ctx));
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memset (&alt_ctx, '\0', sizeof (alt_ctx));
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#endif
|
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if (copied_key != NULL)
|
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memset (copied_key, '\0', key_len);
|
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if (copied_salt != NULL)
|
||||
|
||||
@ -1,5 +1,5 @@
|
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/* One way encryption based on SHA256 sum.
|
||||
Copyright (C) 2007 Free Software Foundation, Inc.
|
||||
Copyright (C) 2007, 2009 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
Contributed by Ulrich Drepper <drepper@redhat.com>, 2007.
|
||||
|
||||
@ -28,6 +28,52 @@
|
||||
#include "sha256.h"
|
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|
||||
|
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#ifdef USE_NSS
|
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typedef int PRBool;
|
||||
# include <hasht.h>
|
||||
# include <nsslowhash.h>
|
||||
|
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# define sha256_init_ctx(ctxp, nss_ctxp) \
|
||||
do \
|
||||
{ \
|
||||
if (((nss_ctxp = NSSLOWHASH_NewContext (nss_ictx, HASH_AlgSHA256)) \
|
||||
== NULL)) \
|
||||
{ \
|
||||
if (nss_ctx != NULL) \
|
||||
NSSLOWHASH_Destroy (nss_ctx); \
|
||||
if (nss_alt_ctx != NULL) \
|
||||
NSSLOWHASH_Destroy (nss_alt_ctx); \
|
||||
return NULL; \
|
||||
} \
|
||||
NSSLOWHASH_Begin (nss_ctxp); \
|
||||
} \
|
||||
while (0)
|
||||
|
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# define sha256_process_bytes(buf, len, ctxp, nss_ctxp) \
|
||||
NSSLOWHASH_Update (nss_ctxp, (const unsigned char *) buf, len)
|
||||
|
||||
# define sha256_finish_ctx(ctxp, nss_ctxp, result) \
|
||||
do \
|
||||
{ \
|
||||
unsigned int ret; \
|
||||
NSSLOWHASH_End (nss_ctxp, result, &ret, sizeof (result)); \
|
||||
assert (ret == sizeof (result)); \
|
||||
NSSLOWHASH_Destroy (nss_ctxp); \
|
||||
nss_ctxp = NULL; \
|
||||
} \
|
||||
while (0)
|
||||
#else
|
||||
# define sha256_init_ctx(ctxp, nss_ctxp) \
|
||||
__sha256_init_ctx (ctxp)
|
||||
|
||||
# define sha256_process_bytes(buf, len, ctxp, nss_ctxp) \
|
||||
__sha256_process_bytes(buf, len, ctxp)
|
||||
|
||||
# define sha256_finish_ctx(ctxp, nss_ctxp, result) \
|
||||
__sha256_finish_ctx (ctxp, result)
|
||||
#endif
|
||||
|
||||
|
||||
/* Define our magic string to mark salt for SHA256 "encryption"
|
||||
replacement. */
|
||||
static const char sha256_salt_prefix[] = "$5$";
|
||||
@ -66,8 +112,6 @@ __sha256_crypt_r (key, salt, buffer, buflen)
|
||||
__attribute__ ((__aligned__ (__alignof__ (uint32_t))));
|
||||
unsigned char temp_result[32]
|
||||
__attribute__ ((__aligned__ (__alignof__ (uint32_t))));
|
||||
struct sha256_ctx ctx;
|
||||
struct sha256_ctx alt_ctx;
|
||||
size_t salt_len;
|
||||
size_t key_len;
|
||||
size_t cnt;
|
||||
@ -123,59 +167,71 @@ __sha256_crypt_r (key, salt, buffer, buflen)
|
||||
assert ((salt - (char *) 0) % __alignof__ (uint32_t) == 0);
|
||||
}
|
||||
|
||||
#ifdef USE_NSS
|
||||
/* Initialize libfreebl3. */
|
||||
NSSLOWInitContext *nss_ictx = NSSLOW_Init ();
|
||||
if (nss_ictx == NULL)
|
||||
return NULL;
|
||||
NSSLOWHASHContext *nss_ctx = NULL;
|
||||
NSSLOWHASHContext *nss_alt_ctx = NULL;
|
||||
#else
|
||||
struct sha256_ctx ctx;
|
||||
struct sha256_ctx alt_ctx;
|
||||
#endif
|
||||
|
||||
/* Prepare for the real work. */
|
||||
__sha256_init_ctx (&ctx);
|
||||
sha256_init_ctx (&ctx, nss_ctx);
|
||||
|
||||
/* Add the key string. */
|
||||
__sha256_process_bytes (key, key_len, &ctx);
|
||||
sha256_process_bytes (key, key_len, &ctx, nss_ctx);
|
||||
|
||||
/* The last part is the salt string. This must be at most 16
|
||||
characters and it ends at the first `$' character. */
|
||||
__sha256_process_bytes (salt, salt_len, &ctx);
|
||||
sha256_process_bytes (salt, salt_len, &ctx, nss_ctx);
|
||||
|
||||
|
||||
/* Compute alternate SHA256 sum with input KEY, SALT, and KEY. The
|
||||
final result will be added to the first context. */
|
||||
__sha256_init_ctx (&alt_ctx);
|
||||
sha256_init_ctx (&alt_ctx, nss_alt_ctx);
|
||||
|
||||
/* Add key. */
|
||||
__sha256_process_bytes (key, key_len, &alt_ctx);
|
||||
sha256_process_bytes (key, key_len, &alt_ctx, nss_alt_ctx);
|
||||
|
||||
/* Add salt. */
|
||||
__sha256_process_bytes (salt, salt_len, &alt_ctx);
|
||||
sha256_process_bytes (salt, salt_len, &alt_ctx, nss_alt_ctx);
|
||||
|
||||
/* Add key again. */
|
||||
__sha256_process_bytes (key, key_len, &alt_ctx);
|
||||
sha256_process_bytes (key, key_len, &alt_ctx, nss_alt_ctx);
|
||||
|
||||
/* Now get result of this (32 bytes) and add it to the other
|
||||
context. */
|
||||
__sha256_finish_ctx (&alt_ctx, alt_result);
|
||||
sha256_finish_ctx (&alt_ctx, nss_alt_ctx, alt_result);
|
||||
|
||||
/* Add for any character in the key one byte of the alternate sum. */
|
||||
for (cnt = key_len; cnt > 32; cnt -= 32)
|
||||
__sha256_process_bytes (alt_result, 32, &ctx);
|
||||
__sha256_process_bytes (alt_result, cnt, &ctx);
|
||||
sha256_process_bytes (alt_result, 32, &ctx, nss_ctx);
|
||||
sha256_process_bytes (alt_result, cnt, &ctx, nss_ctx);
|
||||
|
||||
/* Take the binary representation of the length of the key and for every
|
||||
1 add the alternate sum, for every 0 the key. */
|
||||
for (cnt = key_len; cnt > 0; cnt >>= 1)
|
||||
if ((cnt & 1) != 0)
|
||||
__sha256_process_bytes (alt_result, 32, &ctx);
|
||||
sha256_process_bytes (alt_result, 32, &ctx, nss_ctx);
|
||||
else
|
||||
__sha256_process_bytes (key, key_len, &ctx);
|
||||
sha256_process_bytes (key, key_len, &ctx, nss_ctx);
|
||||
|
||||
/* Create intermediate result. */
|
||||
__sha256_finish_ctx (&ctx, alt_result);
|
||||
sha256_finish_ctx (&ctx, nss_ctx, alt_result);
|
||||
|
||||
/* Start computation of P byte sequence. */
|
||||
__sha256_init_ctx (&alt_ctx);
|
||||
sha256_init_ctx (&alt_ctx, nss_alt_ctx);
|
||||
|
||||
/* For every character in the password add the entire password. */
|
||||
for (cnt = 0; cnt < key_len; ++cnt)
|
||||
__sha256_process_bytes (key, key_len, &alt_ctx);
|
||||
sha256_process_bytes (key, key_len, &alt_ctx, nss_alt_ctx);
|
||||
|
||||
/* Finish the digest. */
|
||||
__sha256_finish_ctx (&alt_ctx, temp_result);
|
||||
sha256_finish_ctx (&alt_ctx, nss_alt_ctx, temp_result);
|
||||
|
||||
/* Create byte sequence P. */
|
||||
cp = p_bytes = alloca (key_len);
|
||||
@ -184,14 +240,14 @@ __sha256_crypt_r (key, salt, buffer, buflen)
|
||||
memcpy (cp, temp_result, cnt);
|
||||
|
||||
/* Start computation of S byte sequence. */
|
||||
__sha256_init_ctx (&alt_ctx);
|
||||
sha256_init_ctx (&alt_ctx, nss_alt_ctx);
|
||||
|
||||
/* For every character in the password add the entire password. */
|
||||
for (cnt = 0; cnt < 16 + alt_result[0]; ++cnt)
|
||||
__sha256_process_bytes (salt, salt_len, &alt_ctx);
|
||||
sha256_process_bytes (salt, salt_len, &alt_ctx, nss_alt_ctx);
|
||||
|
||||
/* Finish the digest. */
|
||||
__sha256_finish_ctx (&alt_ctx, temp_result);
|
||||
sha256_finish_ctx (&alt_ctx, nss_alt_ctx, temp_result);
|
||||
|
||||
/* Create byte sequence S. */
|
||||
cp = s_bytes = alloca (salt_len);
|
||||
@ -204,32 +260,37 @@ __sha256_crypt_r (key, salt, buffer, buflen)
|
||||
for (cnt = 0; cnt < rounds; ++cnt)
|
||||
{
|
||||
/* New context. */
|
||||
__sha256_init_ctx (&ctx);
|
||||
sha256_init_ctx (&ctx, nss_ctx);
|
||||
|
||||
/* Add key or last result. */
|
||||
if ((cnt & 1) != 0)
|
||||
__sha256_process_bytes (p_bytes, key_len, &ctx);
|
||||
sha256_process_bytes (p_bytes, key_len, &ctx, nss_ctx);
|
||||
else
|
||||
__sha256_process_bytes (alt_result, 32, &ctx);
|
||||
sha256_process_bytes (alt_result, 32, &ctx, nss_ctx);
|
||||
|
||||
/* Add salt for numbers not divisible by 3. */
|
||||
if (cnt % 3 != 0)
|
||||
__sha256_process_bytes (s_bytes, salt_len, &ctx);
|
||||
sha256_process_bytes (s_bytes, salt_len, &ctx, nss_ctx);
|
||||
|
||||
/* Add key for numbers not divisible by 7. */
|
||||
if (cnt % 7 != 0)
|
||||
__sha256_process_bytes (p_bytes, key_len, &ctx);
|
||||
sha256_process_bytes (p_bytes, key_len, &ctx, nss_ctx);
|
||||
|
||||
/* Add key or last result. */
|
||||
if ((cnt & 1) != 0)
|
||||
__sha256_process_bytes (alt_result, 32, &ctx);
|
||||
sha256_process_bytes (alt_result, 32, &ctx, nss_ctx);
|
||||
else
|
||||
__sha256_process_bytes (p_bytes, key_len, &ctx);
|
||||
sha256_process_bytes (p_bytes, key_len, &ctx, nss_ctx);
|
||||
|
||||
/* Create intermediate result. */
|
||||
__sha256_finish_ctx (&ctx, alt_result);
|
||||
sha256_finish_ctx (&ctx, nss_ctx, alt_result);
|
||||
}
|
||||
|
||||
#ifdef USE_NSS
|
||||
/* Free libfreebl3 resources. */
|
||||
NSSLOW_Shutdown (nss_ictx);
|
||||
#endif
|
||||
|
||||
/* Now we can construct the result string. It consists of three
|
||||
parts. */
|
||||
cp = __stpncpy (buffer, sha256_salt_prefix, MAX (0, buflen));
|
||||
@ -252,17 +313,17 @@ __sha256_crypt_r (key, salt, buffer, buflen)
|
||||
--buflen;
|
||||
}
|
||||
|
||||
#define b64_from_24bit(B2, B1, B0, N) \
|
||||
do { \
|
||||
unsigned int w = ((B2) << 16) | ((B1) << 8) | (B0); \
|
||||
int n = (N); \
|
||||
while (n-- > 0 && buflen > 0) \
|
||||
{ \
|
||||
*cp++ = b64t[w & 0x3f]; \
|
||||
--buflen; \
|
||||
w >>= 6; \
|
||||
} \
|
||||
} while (0)
|
||||
void b64_from_24bit (unsigned int b2, unsigned int b1, unsigned int b0,
|
||||
int n)
|
||||
{
|
||||
unsigned int w = (b2 << 16) | (b1 << 8) | b0;
|
||||
while (n-- > 0 && buflen > 0)
|
||||
{
|
||||
*cp++ = b64t[w & 0x3f];
|
||||
--buflen;
|
||||
w >>= 6;
|
||||
}
|
||||
}
|
||||
|
||||
b64_from_24bit (alt_result[0], alt_result[10], alt_result[20], 4);
|
||||
b64_from_24bit (alt_result[21], alt_result[1], alt_result[11], 4);
|
||||
@ -287,13 +348,15 @@ __sha256_crypt_r (key, salt, buffer, buflen)
|
||||
attaching to processes or reading core dumps cannot get any
|
||||
information. We do it in this way to clear correct_words[]
|
||||
inside the SHA256 implementation as well. */
|
||||
#ifndef USE_NSS
|
||||
__sha256_init_ctx (&ctx);
|
||||
__sha256_finish_ctx (&ctx, alt_result);
|
||||
memset (&ctx, '\0', sizeof (ctx));
|
||||
memset (&alt_ctx, '\0', sizeof (alt_ctx));
|
||||
#endif
|
||||
memset (temp_result, '\0', sizeof (temp_result));
|
||||
memset (p_bytes, '\0', key_len);
|
||||
memset (s_bytes, '\0', salt_len);
|
||||
memset (&ctx, '\0', sizeof (ctx));
|
||||
memset (&alt_ctx, '\0', sizeof (alt_ctx));
|
||||
if (copied_key != NULL)
|
||||
memset (copied_key, '\0', key_len);
|
||||
if (copied_salt != NULL)
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
/* One way encryption based on SHA512 sum.
|
||||
Copyright (C) 2007 Free Software Foundation, Inc.
|
||||
Copyright (C) 2007, 2009 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
Contributed by Ulrich Drepper <drepper@redhat.com>, 2007.
|
||||
|
||||
@ -28,6 +28,52 @@
|
||||
#include "sha512.h"
|
||||
|
||||
|
||||
#ifdef USE_NSS
|
||||
typedef int PRBool;
|
||||
# include <hasht.h>
|
||||
# include <nsslowhash.h>
|
||||
|
||||
# define sha512_init_ctx(ctxp, nss_ctxp) \
|
||||
do \
|
||||
{ \
|
||||
if (((nss_ctxp = NSSLOWHASH_NewContext (nss_ictx, HASH_AlgSHA512)) \
|
||||
== NULL)) \
|
||||
{ \
|
||||
if (nss_ctx != NULL) \
|
||||
NSSLOWHASH_Destroy (nss_ctx); \
|
||||
if (nss_alt_ctx != NULL) \
|
||||
NSSLOWHASH_Destroy (nss_alt_ctx); \
|
||||
return NULL; \
|
||||
} \
|
||||
NSSLOWHASH_Begin (nss_ctxp); \
|
||||
} \
|
||||
while (0)
|
||||
|
||||
# define sha512_process_bytes(buf, len, ctxp, nss_ctxp) \
|
||||
NSSLOWHASH_Update (nss_ctxp, (const unsigned char *) buf, len)
|
||||
|
||||
# define sha512_finish_ctx(ctxp, nss_ctxp, result) \
|
||||
do \
|
||||
{ \
|
||||
unsigned int ret; \
|
||||
NSSLOWHASH_End (nss_ctxp, result, &ret, sizeof (result)); \
|
||||
assert (ret == sizeof (result)); \
|
||||
NSSLOWHASH_Destroy (nss_ctxp); \
|
||||
nss_ctxp = NULL; \
|
||||
} \
|
||||
while (0)
|
||||
#else
|
||||
# define sha512_init_ctx(ctxp, nss_ctxp) \
|
||||
__sha512_init_ctx (ctxp)
|
||||
|
||||
# define sha512_process_bytes(buf, len, ctxp, nss_ctxp) \
|
||||
__sha512_process_bytes(buf, len, ctxp)
|
||||
|
||||
# define sha512_finish_ctx(ctxp, nss_ctxp, result) \
|
||||
__sha512_finish_ctx (ctxp, result)
|
||||
#endif
|
||||
|
||||
|
||||
/* Define our magic string to mark salt for SHA512 "encryption"
|
||||
replacement. */
|
||||
static const char sha512_salt_prefix[] = "$6$";
|
||||
@ -66,8 +112,6 @@ __sha512_crypt_r (key, salt, buffer, buflen)
|
||||
__attribute__ ((__aligned__ (__alignof__ (uint64_t))));
|
||||
unsigned char temp_result[64]
|
||||
__attribute__ ((__aligned__ (__alignof__ (uint64_t))));
|
||||
struct sha512_ctx ctx;
|
||||
struct sha512_ctx alt_ctx;
|
||||
size_t salt_len;
|
||||
size_t key_len;
|
||||
size_t cnt;
|
||||
@ -123,59 +167,71 @@ __sha512_crypt_r (key, salt, buffer, buflen)
|
||||
assert ((salt - (char *) 0) % __alignof__ (uint64_t) == 0);
|
||||
}
|
||||
|
||||
#ifdef USE_NSS
|
||||
/* Initialize libfreebl3. */
|
||||
NSSLOWInitContext *nss_ictx = NSSLOW_Init ();
|
||||
if (nss_ictx == NULL)
|
||||
return NULL;
|
||||
NSSLOWHASHContext *nss_ctx = NULL;
|
||||
NSSLOWHASHContext *nss_alt_ctx = NULL;
|
||||
#else
|
||||
struct sha512_ctx ctx;
|
||||
struct sha512_ctx alt_ctx;
|
||||
#endif
|
||||
|
||||
/* Prepare for the real work. */
|
||||
__sha512_init_ctx (&ctx);
|
||||
sha512_init_ctx (&ctx, nss_ctx);
|
||||
|
||||
/* Add the key string. */
|
||||
__sha512_process_bytes (key, key_len, &ctx);
|
||||
sha512_process_bytes (key, key_len, &ctx, nss_ctx);
|
||||
|
||||
/* The last part is the salt string. This must be at most 16
|
||||
characters and it ends at the first `$' character. */
|
||||
__sha512_process_bytes (salt, salt_len, &ctx);
|
||||
sha512_process_bytes (salt, salt_len, &ctx, nss_ctx);
|
||||
|
||||
|
||||
/* Compute alternate SHA512 sum with input KEY, SALT, and KEY. The
|
||||
final result will be added to the first context. */
|
||||
__sha512_init_ctx (&alt_ctx);
|
||||
sha512_init_ctx (&alt_ctx, nss_alt_ctx);
|
||||
|
||||
/* Add key. */
|
||||
__sha512_process_bytes (key, key_len, &alt_ctx);
|
||||
sha512_process_bytes (key, key_len, &alt_ctx, nss_alt_ctx);
|
||||
|
||||
/* Add salt. */
|
||||
__sha512_process_bytes (salt, salt_len, &alt_ctx);
|
||||
sha512_process_bytes (salt, salt_len, &alt_ctx, nss_alt_ctx);
|
||||
|
||||
/* Add key again. */
|
||||
__sha512_process_bytes (key, key_len, &alt_ctx);
|
||||
sha512_process_bytes (key, key_len, &alt_ctx, nss_alt_ctx);
|
||||
|
||||
/* Now get result of this (64 bytes) and add it to the other
|
||||
context. */
|
||||
__sha512_finish_ctx (&alt_ctx, alt_result);
|
||||
sha512_finish_ctx (&alt_ctx, nss_alt_ctx, alt_result);
|
||||
|
||||
/* Add for any character in the key one byte of the alternate sum. */
|
||||
for (cnt = key_len; cnt > 64; cnt -= 64)
|
||||
__sha512_process_bytes (alt_result, 64, &ctx);
|
||||
__sha512_process_bytes (alt_result, cnt, &ctx);
|
||||
sha512_process_bytes (alt_result, 64, &ctx, nss_ctx);
|
||||
sha512_process_bytes (alt_result, cnt, &ctx, nss_ctx);
|
||||
|
||||
/* Take the binary representation of the length of the key and for every
|
||||
1 add the alternate sum, for every 0 the key. */
|
||||
for (cnt = key_len; cnt > 0; cnt >>= 1)
|
||||
if ((cnt & 1) != 0)
|
||||
__sha512_process_bytes (alt_result, 64, &ctx);
|
||||
sha512_process_bytes (alt_result, 64, &ctx, nss_ctx);
|
||||
else
|
||||
__sha512_process_bytes (key, key_len, &ctx);
|
||||
sha512_process_bytes (key, key_len, &ctx, nss_ctx);
|
||||
|
||||
/* Create intermediate result. */
|
||||
__sha512_finish_ctx (&ctx, alt_result);
|
||||
sha512_finish_ctx (&ctx, nss_ctx, alt_result);
|
||||
|
||||
/* Start computation of P byte sequence. */
|
||||
__sha512_init_ctx (&alt_ctx);
|
||||
sha512_init_ctx (&alt_ctx, nss_alt_ctx);
|
||||
|
||||
/* For every character in the password add the entire password. */
|
||||
for (cnt = 0; cnt < key_len; ++cnt)
|
||||
__sha512_process_bytes (key, key_len, &alt_ctx);
|
||||
sha512_process_bytes (key, key_len, &alt_ctx, nss_alt_ctx);
|
||||
|
||||
/* Finish the digest. */
|
||||
__sha512_finish_ctx (&alt_ctx, temp_result);
|
||||
sha512_finish_ctx (&alt_ctx, nss_alt_ctx, temp_result);
|
||||
|
||||
/* Create byte sequence P. */
|
||||
cp = p_bytes = alloca (key_len);
|
||||
@ -184,14 +240,14 @@ __sha512_crypt_r (key, salt, buffer, buflen)
|
||||
memcpy (cp, temp_result, cnt);
|
||||
|
||||
/* Start computation of S byte sequence. */
|
||||
__sha512_init_ctx (&alt_ctx);
|
||||
sha512_init_ctx (&alt_ctx, nss_alt_ctx);
|
||||
|
||||
/* For every character in the password add the entire password. */
|
||||
for (cnt = 0; cnt < 16 + alt_result[0]; ++cnt)
|
||||
__sha512_process_bytes (salt, salt_len, &alt_ctx);
|
||||
sha512_process_bytes (salt, salt_len, &alt_ctx, nss_alt_ctx);
|
||||
|
||||
/* Finish the digest. */
|
||||
__sha512_finish_ctx (&alt_ctx, temp_result);
|
||||
sha512_finish_ctx (&alt_ctx, nss_alt_ctx, temp_result);
|
||||
|
||||
/* Create byte sequence S. */
|
||||
cp = s_bytes = alloca (salt_len);
|
||||
@ -204,32 +260,37 @@ __sha512_crypt_r (key, salt, buffer, buflen)
|
||||
for (cnt = 0; cnt < rounds; ++cnt)
|
||||
{
|
||||
/* New context. */
|
||||
__sha512_init_ctx (&ctx);
|
||||
sha512_init_ctx (&ctx, nss_ctx);
|
||||
|
||||
/* Add key or last result. */
|
||||
if ((cnt & 1) != 0)
|
||||
__sha512_process_bytes (p_bytes, key_len, &ctx);
|
||||
sha512_process_bytes (p_bytes, key_len, &ctx, nss_ctx);
|
||||
else
|
||||
__sha512_process_bytes (alt_result, 64, &ctx);
|
||||
sha512_process_bytes (alt_result, 64, &ctx, nss_ctx);
|
||||
|
||||
/* Add salt for numbers not divisible by 3. */
|
||||
if (cnt % 3 != 0)
|
||||
__sha512_process_bytes (s_bytes, salt_len, &ctx);
|
||||
sha512_process_bytes (s_bytes, salt_len, &ctx, nss_ctx);
|
||||
|
||||
/* Add key for numbers not divisible by 7. */
|
||||
if (cnt % 7 != 0)
|
||||
__sha512_process_bytes (p_bytes, key_len, &ctx);
|
||||
sha512_process_bytes (p_bytes, key_len, &ctx, nss_ctx);
|
||||
|
||||
/* Add key or last result. */
|
||||
if ((cnt & 1) != 0)
|
||||
__sha512_process_bytes (alt_result, 64, &ctx);
|
||||
sha512_process_bytes (alt_result, 64, &ctx, nss_ctx);
|
||||
else
|
||||
__sha512_process_bytes (p_bytes, key_len, &ctx);
|
||||
sha512_process_bytes (p_bytes, key_len, &ctx, nss_ctx);
|
||||
|
||||
/* Create intermediate result. */
|
||||
__sha512_finish_ctx (&ctx, alt_result);
|
||||
sha512_finish_ctx (&ctx, nss_ctx, alt_result);
|
||||
}
|
||||
|
||||
#ifdef USE_NSS
|
||||
/* Free libfreebl3 resources. */
|
||||
NSSLOW_Shutdown (nss_ictx);
|
||||
#endif
|
||||
|
||||
/* Now we can construct the result string. It consists of three
|
||||
parts. */
|
||||
cp = __stpncpy (buffer, sha512_salt_prefix, MAX (0, buflen));
|
||||
@ -252,17 +313,17 @@ __sha512_crypt_r (key, salt, buffer, buflen)
|
||||
--buflen;
|
||||
}
|
||||
|
||||
#define b64_from_24bit(B2, B1, B0, N) \
|
||||
do { \
|
||||
unsigned int w = ((B2) << 16) | ((B1) << 8) | (B0); \
|
||||
int n = (N); \
|
||||
while (n-- > 0 && buflen > 0) \
|
||||
{ \
|
||||
*cp++ = b64t[w & 0x3f]; \
|
||||
--buflen; \
|
||||
w >>= 6; \
|
||||
} \
|
||||
} while (0)
|
||||
void b64_from_24bit (unsigned int b2, unsigned int b1, unsigned int b0,
|
||||
int n)
|
||||
{
|
||||
unsigned int w = (b2 << 16) | (b1 << 8) | b0;
|
||||
while (n-- > 0 && buflen > 0)
|
||||
{
|
||||
*cp++ = b64t[w & 0x3f];
|
||||
--buflen;
|
||||
w >>= 6;
|
||||
}
|
||||
}
|
||||
|
||||
b64_from_24bit (alt_result[0], alt_result[21], alt_result[42], 4);
|
||||
b64_from_24bit (alt_result[22], alt_result[43], alt_result[1], 4);
|
||||
@ -299,13 +360,15 @@ __sha512_crypt_r (key, salt, buffer, buflen)
|
||||
attaching to processes or reading core dumps cannot get any
|
||||
information. We do it in this way to clear correct_words[]
|
||||
inside the SHA512 implementation as well. */
|
||||
#ifndef USE_NSS
|
||||
__sha512_init_ctx (&ctx);
|
||||
__sha512_finish_ctx (&ctx, alt_result);
|
||||
memset (&ctx, '\0', sizeof (ctx));
|
||||
memset (&alt_ctx, '\0', sizeof (alt_ctx));
|
||||
#endif
|
||||
memset (temp_result, '\0', sizeof (temp_result));
|
||||
memset (p_bytes, '\0', key_len);
|
||||
memset (s_bytes, '\0', salt_len);
|
||||
memset (&ctx, '\0', sizeof (ctx));
|
||||
memset (&alt_ctx, '\0', sizeof (alt_ctx));
|
||||
if (copied_key != NULL)
|
||||
memset (copied_key, '\0', key_len);
|
||||
if (copied_salt != NULL)
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
#! /bin/bash
|
||||
# Copyright (C) 2005, 2007 Free Software Foundation, Inc.
|
||||
# Copyright (C) 2005, 2007, 2009 Free Software Foundation, Inc.
|
||||
# This file is part of the GNU C Library.
|
||||
|
||||
# The GNU C Library is free software; you can redistribute it and/or
|
||||
@ -31,7 +31,8 @@ fgrep -v "$includedir/asm" |
|
||||
fgrep -v "$includedir/linux" |
|
||||
fgrep -v "$includedir/selinux" |
|
||||
fgrep -v "$includedir/sys/capability.h" |
|
||||
fgrep -v "$includedir/gd"; then
|
||||
fgrep -v "$includedir/gd" |
|
||||
fgrep -v "$includedir/nss3"; then
|
||||
# If we found a match something is wrong.
|
||||
exit 1
|
||||
fi
|
||||
|
||||
Loading…
Reference in New Issue
Block a user