mirror of https://github.com/wolfSSL/wolfssl
Add `USE_SLOW_SHA256` and `USE_SLOW_SHA512` options for reduced code size of SHA. Existing `USE_SLOW_SHA2` applies for SHA512 only. Cleanup formatting of the sha256.c and sha512.c code. Added new `./configure --lowresource` option, which defines the memory reduction defines. Fix for `make check` resume.test scipt with `NO_SESSION_CACHE` defined.
This commit is contained in:
David Garske
parent
29b091eae6
commit
5a5fea7b46
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@ -60,6 +60,7 @@ These settings are located in `Header/user_settings.h`.
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AES GCM: `GCM_SMALL`, `GCM_WORD32` or `GCM_TABLE`: Tunes performance and flash/memory usage.
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* `CURVED25519_SMALL`: Enables small versions of Ed/Curve (FE/GE math).
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* `USE_SLOW_SHA`: Enables smaller/slower version of SHA.
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* `USE_SLOW_SHA2`: Over twice as small, but 50% slower
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* `USE_SLOW_SHA256`: About 2k smaller and about 25% slower
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* `USE_SLOW_SHA512`: Over twice as small, but 50% slower
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* `USE_CERT_BUFFERS_1024` or `USE_CERT_BUFFERS_2048`: Size of RSA certs / keys to test with.
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* `BENCH_EMBEDDED`: Define this if using the wolfCrypt test/benchmark and using a low memory target.
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96
configure.ac
96
configure.ac
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@ -558,9 +558,10 @@ AC_ARG_ENABLE([leanpsk],
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if test "$ENABLED_LEANPSK" = "yes"
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then
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AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_LEANPSK -DWOLFSSL_STATIC_PSK -DHAVE_NULL_CIPHER -DSINGLE_THREADED -DNO_AES -DNO_FILESYSTEM -DNO_RABBIT -DNO_RSA -DNO_DSA -DNO_DH -DNO_CERTS -DNO_PWDBASED -DNO_MD4 -DNO_MD5 -DNO_ERROR_STRINGS -DNO_OLD_TLS -DNO_RC4 -DNO_WRITEV -DNO_SESSION_CACHE -DNO_DEV_RANDOM -DWOLFSSL_USER_IO -DNO_SHA -DUSE_SLOW_SHA"
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AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_LEANPSK -DWOLFSSL_STATIC_PSK -DHAVE_NULL_CIPHER -DSINGLE_THREADED -DNO_AES -DNO_FILESYSTEM -DNO_RABBIT -DNO_RSA -DNO_DSA -DNO_DH -DNO_CERTS -DNO_PWDBASED -DNO_MD4 -DNO_MD5 -DNO_ERROR_STRINGS -DNO_OLD_TLS -DNO_RC4 -DNO_WRITEV -DNO_DEV_RANDOM -DWOLFSSL_USER_IO -DNO_SHA"
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ENABLED_SLOWMATH="no"
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ENABLED_SINGLETHREADED="yes"
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enable_lowresource=yes
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fi
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AM_CONDITIONAL([BUILD_LEANPSK], [test "x$ENABLED_LEANPSK" = "xyes"])
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@ -575,12 +576,32 @@ AC_ARG_ENABLE([leantls],
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if test "$ENABLED_LEANTLS" = "yes"
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then
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AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_LEANTLS -DNO_WRITEV -DHAVE_ECC -DTFM_ECC256 -DECC_USER_CURVES -DNO_WOLFSSL_SERVER -DNO_RABBIT -DNO_RSA -DNO_DSA -DNO_DH -DNO_PWDBASED -DNO_MD5 -DNO_ERROR_STRINGS -DNO_OLD_TLS -DNO_RC4 -DNO_SESSION_CACHE -DNO_SHA -DUSE_SLOW_SHA -DUSE_SLOW_SHA2 -DNO_PSK -DNO_WOLFSSL_MEMORY"
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AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_LEANTLS -DNO_WRITEV -DHAVE_ECC -DTFM_ECC256 -DECC_USER_CURVES -DNO_WOLFSSL_SERVER -DNO_RABBIT -DNO_RSA -DNO_DSA -DNO_DH -DNO_PWDBASED -DNO_MD5 -DNO_ERROR_STRINGS -DNO_OLD_TLS -DNO_RC4 -DNO_SHA -DNO_PSK -DNO_WOLFSSL_MEMORY"
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enable_lowresource=yes
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fi
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AM_CONDITIONAL([BUILD_LEANTLS], [test "x$ENABLED_LEANTLS" = "xyes"])
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# low resource options to reduce flash and memory use
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AC_ARG_ENABLE([lowresource],
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[AS_HELP_STRING([--enable-lowresource],[Enable low resource options for memory/flash (default: disabled)])],
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[ ENABLED_LOWRESOURCE=$enableval ],
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[ ENABLED_LOWRESOURCE=no ]
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)
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if test "$ENABLED_LOWRESOURCE" = "yes"
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then
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# low memory / flash flags
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AM_CFLAGS="$AM_CFLAGS -DNO_SESSION_CACHE -DRSA_LOW_MEM -DGCM_SMALL -DCURVE25519_SMALL -DED25519_SMALL"
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# low flash flags
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AM_CFLAGS="$AM_CFLAGS -DUSE_SLOW_SHA -DUSE_SLOW_SHA256 -DUSE_SLOW_SHA512"
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fi
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AM_CONDITIONAL([BUILD_LOWMEM], [test "x$ENABLED_LOWRESOURCE" = "xyes"])
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# big cache
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AC_ARG_ENABLE([bigcache],
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[AS_HELP_STRING([--enable-bigcache],[Enable big session cache (default: disabled)])],
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@ -713,6 +734,7 @@ AS_IF([ test "x$ENABLED_SNIFFER" = "xyes" ],
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AM_CONDITIONAL([BUILD_SNIFFER], [ test "x$ENABLED_SNIFFER" = "xyes" ])
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AM_CONDITIONAL([BUILD_SNIFFTEST], [ test "x$ENABLED_SNIFFTEST" = "xyes" ])
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# AES-GCM
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AC_ARG_ENABLE([aesgcm],
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[AS_HELP_STRING([--enable-aesgcm],[Enable wolfSSL AES-GCM support (default: enabled)])],
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@ -727,26 +749,26 @@ then
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ENABLED_AESGCM=no
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fi
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if test "$ENABLED_AESGCM" = "word32"
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if test "$ENABLED_AESGCM" != "no"
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then
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AM_CFLAGS="$AM_CFLAGS -DGCM_WORD32"
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ENABLED_AESGCM=yes
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fi
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if test "$ENABLED_AESGCM" = "word32"
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then
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AM_CFLAGS="$AM_CFLAGS -DGCM_WORD32"
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ENABLED_AESGCM=yes
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fi
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if test "$ENABLED_AESGCM" = "small"
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then
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AM_CFLAGS="$AM_CFLAGS -DGCM_SMALL"
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ENABLED_AESGCM=yes
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fi
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if test "$ENABLED_AESGCM" = "small" || test "$ENABLED_LOWRESOURCE" = "yes"
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then
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AM_CFLAGS="$AM_CFLAGS -DGCM_SMALL"
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ENABLED_AESGCM=yes
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fi
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if test "$ENABLED_AESGCM" = "table"
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then
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AM_CFLAGS="$AM_CFLAGS -DGCM_TABLE"
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ENABLED_AESGCM=yes
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fi
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if test "$ENABLED_AESGCM" = "table"
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then
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AM_CFLAGS="$AM_CFLAGS -DGCM_TABLE"
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ENABLED_AESGCM=yes
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fi
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if test "$ENABLED_AESGCM" = "yes"
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then
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AM_CFLAGS="$AM_CFLAGS -DHAVE_AESGCM"
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fi
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@ -1246,21 +1268,21 @@ then
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ENABLED_CURVE25519="yes"
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fi
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if test "$ENABLED_CURVE25519" = "small"
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if test "$ENABLED_CURVE25519" != "no"
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then
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AM_CFLAGS="$AM_CFLAGS -DCURVE25519_SMALL"
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ENABLED_CURVE25519_SMALL=yes
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ENABLED_CURVE25519=yes
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fi
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if test "$ENABLED_CURVE25519" = "small" || test "$ENABLED_LOWRESOURCE" = "yes"
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then
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AM_CFLAGS="$AM_CFLAGS -DCURVE25519_SMALL"
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ENABLED_CURVE25519_SMALL=yes
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ENABLED_CURVE25519=yes
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fi
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if test "$ENABLED_CURVE25519" = "no128bit"
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then
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AM_CFLAGS="$AM_CFLAGS -DNO_CURVED25519_128BIT"
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ENABLED_CURVE25519=yes
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fi
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if test "$ENABLED_CURVE25519" = "no128bit"
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then
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AM_CFLAGS="$AM_CFLAGS -DNO_CURVED25519_128BIT"
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ENABLED_CURVE25519=yes
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fi
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if test "$ENABLED_CURVE25519" = "yes"
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then
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AM_CFLAGS="$AM_CFLAGS -DHAVE_CURVE25519"
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ENABLED_FEMATH=yes
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fi
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@ -1282,15 +1304,15 @@ then
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ENABLED_ED25519="yes"
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fi
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if test "$ENABLED_ED25519" = "small"
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if test "$ENABLED_ED25519" != "no" && test "$ENABLED_32BIT" = "no"
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then
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AM_CFLAGS="$AM_CFLAGS -DED25519_SMALL"
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ENABLED_ED25519_SMALL=yes
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ENABLED_ED25519=yes
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fi
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if test "$ENABLED_ED25519" = "small" || test "$ENABLED_LOWRESOURCE" = "yes"
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then
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AM_CFLAGS="$AM_CFLAGS -DED25519_SMALL"
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ENABLED_ED25519_SMALL=yes
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ENABLED_ED25519=yes
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fi
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if test "$ENABLED_ED25519" = "yes" && test "$ENABLED_32BIT" = "no"
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then
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if test "$ENABLED_SHA512" = "no"
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then
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AC_MSG_ERROR([cannot enable ed25519 without enabling sha512.])
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@ -684,7 +684,9 @@ static void Usage(void)
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#endif
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printf("-m Match domain name in cert\n");
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printf("-N Use Non-blocking sockets\n");
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#ifndef NO_SESSION_CACHE
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printf("-r Resume session\n");
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#endif
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printf("-w Wait for bidirectional shutdown\n");
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printf("-M <prot> Use STARTTLS, using <prot> protocol (smtp)\n");
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#ifdef HAVE_SECURE_RENEGOTIATION
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@ -1,10 +1,11 @@
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#!/bin/sh
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#reusme.test
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#resume.test
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# need a unique resume port since may run the same time as testsuite
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# use server port zero hack to get one
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resume_string="reused"
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resume_sup_string="Resume session"
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ems_string="Extended\ Master\ Secret"
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resume_port=0
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no_pid=-1
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@ -45,6 +46,18 @@ do_trap() {
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do_test() {
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echo -e "\nStarting example server for resume test...\n"
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#make sure we support session resumption (!NO_SESSION_CACHE)
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# Check the client for the extended master secret disable option. If
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# present we need to run the test twice.
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options_check=`./examples/client/client -?`
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case "$options_check" in
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*$resume_sup_string*)
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echo -e "\nResume test supported";;
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*)
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echo -e "\nResume test not supported with build"
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return;;
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esac
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remove_ready_file
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./examples/server/server -r -R $ready_file -p $resume_port &
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server_pid=$!
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@ -418,7 +418,7 @@ static INLINE void AddLength(wc_Sha* sha, word32 len)
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t = e; e = d; d = c; c = b; b = a; a = t;
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}
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#else
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/* nearly 1 K bigger in code size but 25% faster */
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/* nearly 1 K bigger in code size but 25% faster */
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/* 4 rounds of 20 operations each. Loop unrolled. */
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R0(a,b,c,d,e, 0); R0(e,a,b,c,d, 1); R0(d,e,a,b,c, 2); R0(c,d,e,a,b, 3);
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R0(b,c,d,e,a, 4); R0(a,b,c,d,e, 5); R0(e,a,b,c,d, 6); R0(d,e,a,b,c, 7);
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@ -538,16 +538,25 @@ static int InitSha256(wc_Sha256* sha256)
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#define R(x, n) (((x) & 0xFFFFFFFFU) >> (n))
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#define S(x, n) rotrFixed(x, n)
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#define Sigma0(x) (S(x, 2) ^ S(x, 13) ^ S(x, 22))
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#define Sigma1(x) (S(x, 6) ^ S(x, 11) ^ S(x, 25))
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#define Gamma0(x) (S(x, 7) ^ S(x, 18) ^ R(x, 3))
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#define Sigma0(x) (S(x, 2) ^ S(x, 13) ^ S(x, 22))
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#define Sigma1(x) (S(x, 6) ^ S(x, 11) ^ S(x, 25))
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#define Gamma0(x) (S(x, 7) ^ S(x, 18) ^ R(x, 3))
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#define Gamma1(x) (S(x, 17) ^ S(x, 19) ^ R(x, 10))
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#define RND(a,b,c,d,e,f,g,h,i) \
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t0 = (h) + Sigma1((e)) + Ch((e), (f), (g)) + K[(i)] + W[(i)]; \
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t1 = Sigma0((a)) + Maj((a), (b), (c)); \
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(d) += t0; \
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(h) = t0 + t1;
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#define a(i) S[(0-i) & 7]
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#define b(i) S[(1-i) & 7]
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#define c(i) S[(2-i) & 7]
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#define d(i) S[(3-i) & 7]
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#define e(i) S[(4-i) & 7]
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#define f(i) S[(5-i) & 7]
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#define g(i) S[(6-i) & 7]
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#define h(i) S[(7-i) & 7]
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#define RND(j) \
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t0 = h(j) + Sigma1(e(j)) + Ch(e(j), f(j), g(j)) + K[i+j] + W[i+j]; \
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t1 = Sigma0(a(j)) + Maj(a(j), b(j), c(j)); \
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d(j) += t0; \
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h(j) = t0 + t1
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#ifndef XTRANSFORM
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#define XTRANSFORM(S, B) Transform((S))
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@ -579,16 +588,21 @@ static int InitSha256(wc_Sha256* sha256)
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for (i = 16; i < WC_SHA256_BLOCK_SIZE; i++)
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W[i] = Gamma1(W[i-2]) + W[i-7] + Gamma0(W[i-15]) + W[i-16];
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#ifdef USE_SLOW_SHA256
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/* not unrolled - ~2k smaller and ~25% slower */
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for (i = 0; i < WC_SHA256_BLOCK_SIZE; i += 8) {
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RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],i+0);
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RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],i+1);
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RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],i+2);
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RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],i+3);
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RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],i+4);
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RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],i+5);
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RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],i+6);
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RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],i+7);
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int j;
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for (j = 0; j < 8; j++) { /* braces needed here for macros {} */
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RND(j);
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}
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}
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#else
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/* partially loop unrolled */
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for (i = 0; i < WC_SHA256_BLOCK_SIZE; i += 8) {
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RND(0); RND(1); RND(2); RND(3);
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RND(4); RND(5); RND(6); RND(7);
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}
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#endif /* USE_SLOW_SHA256 */
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/* Add the working vars back into digest state[] */
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for (i = 0; i < 8; i++) {
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@ -31,6 +31,11 @@
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#include <wolfssl/wolfcrypt/error-crypt.h>
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#include <wolfssl/wolfcrypt/cpuid.h>
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/* deprecated USE_SLOW_SHA2 (replaced with USE_SLOW_SHA512) */
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#if defined(USE_SLOW_SHA2) && !defined(USE_SLOW_SHA512)
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#define USE_SLOW_SHA512
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#endif
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/* fips wrapper calls, user can call direct */
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#ifdef HAVE_FIPS
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int wc_InitSha512(wc_Sha512* sha)
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@ -401,40 +406,43 @@ static const word64 K512[80] = {
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W64LIT(0x5fcb6fab3ad6faec), W64LIT(0x6c44198c4a475817)
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};
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#define blk0(i) (W[i] = sha512->buffer[i])
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#define blk2(i) (W[i&15]+=s1(W[(i-2)&15])+W[(i-7)&15]+s0(W[(i-15)&15]))
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#define blk2(i) (\
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W[ i & 15] += \
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s1(W[(i-2) & 15])+ \
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W[(i-7) & 15] + \
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s0(W[(i-15) & 15]) \
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)
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#define Ch(x,y,z) (z^(x&(y^z)))
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#define Maj(x,y,z) ((x&y)|(z&(x|y)))
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#define Ch(x,y,z) (z ^ (x & (y ^ z)))
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#define Maj(x,y,z) ((x & y) | (z & (x | y)))
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#define a(i) T[(0-i)&7]
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#define b(i) T[(1-i)&7]
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#define c(i) T[(2-i)&7]
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#define d(i) T[(3-i)&7]
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#define e(i) T[(4-i)&7]
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#define f(i) T[(5-i)&7]
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#define g(i) T[(6-i)&7]
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#define h(i) T[(7-i)&7]
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#define a(i) T[(0-i) & 7]
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#define b(i) T[(1-i) & 7]
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#define c(i) T[(2-i) & 7]
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#define d(i) T[(3-i) & 7]
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#define e(i) T[(4-i) & 7]
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#define f(i) T[(5-i) & 7]
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#define g(i) T[(6-i) & 7]
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#define h(i) T[(7-i) & 7]
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#define S0(x) (rotrFixed64(x,28)^rotrFixed64(x,34)^rotrFixed64(x,39))
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#define S1(x) (rotrFixed64(x,14)^rotrFixed64(x,18)^rotrFixed64(x,41))
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#define s0(x) (rotrFixed64(x,1)^rotrFixed64(x,8)^(x>>7))
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#define s1(x) (rotrFixed64(x,19)^rotrFixed64(x,61)^(x>>6))
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#define S0(x) (rotrFixed64(x,28) ^ rotrFixed64(x,34) ^ rotrFixed64(x,39))
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#define S1(x) (rotrFixed64(x,14) ^ rotrFixed64(x,18) ^ rotrFixed64(x,41))
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#define s0(x) (rotrFixed64(x,1) ^ rotrFixed64(x,8) ^ (x>>7))
|
||||
#define s1(x) (rotrFixed64(x,19) ^ rotrFixed64(x,61) ^ (x>>6))
|
||||
|
||||
#define R(i) h(i)+=S1(e(i))+Ch(e(i),f(i),g(i))+K[i+j]+(j?blk2(i):blk0(i));\
|
||||
d(i)+=h(i);h(i)+=S0(a(i))+Maj(a(i),b(i),c(i))
|
||||
#define R(i) \
|
||||
h(i) += S1(e(i)) + Ch(e(i),f(i),g(i)) + K[i+j] + (j ? blk2(i) : blk0(i)); \
|
||||
d(i) += h(i); \
|
||||
h(i) += S0(a(i)) + Maj(a(i),b(i),c(i))
|
||||
|
||||
static int _Transform(wc_Sha512* sha512)
|
||||
{
|
||||
const word64* K = K512;
|
||||
|
||||
word32 j;
|
||||
word64 T[8];
|
||||
|
||||
|
||||
#ifdef WOLFSSL_SMALL_STACK
|
||||
word64* W;
|
||||
W = (word64*) XMALLOC(sizeof(word64) * 16, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
||||
|
|
@ -447,7 +455,7 @@ static int _Transform(wc_Sha512* sha512)
|
|||
/* Copy digest to working vars */
|
||||
XMEMCPY(T, sha512->digest, sizeof(T));
|
||||
|
||||
#ifdef USE_SLOW_SHA2
|
||||
#ifdef USE_SLOW_SHA512
|
||||
/* over twice as small, but 50% slower */
|
||||
/* 80 operations, not unrolled */
|
||||
for (j = 0; j < 80; j += 16) {
|
||||
|
|
@ -464,10 +472,9 @@ static int _Transform(wc_Sha512* sha512)
|
|||
R( 8); R( 9); R(10); R(11);
|
||||
R(12); R(13); R(14); R(15);
|
||||
}
|
||||
#endif /* USE_SLOW_SHA2 */
|
||||
#endif /* USE_SLOW_SHA512 */
|
||||
|
||||
/* Add the working vars back into digest */
|
||||
|
||||
sha512->digest[0] += a(0);
|
||||
sha512->digest[1] += b(0);
|
||||
sha512->digest[2] += c(0);
|
||||
|
|
|
|||
Loading…
Reference in New Issue