ed25519-donna implementation

This commit is contained in:
cathugger 2017-10-02 14:11:23 +00:00
parent 9706645191
commit e4aab13413
5 changed files with 171 additions and 12 deletions

View file

@ -6,6 +6,7 @@ ASFLAGS=
LDFLAGS= -no-pie
MV= mv
ED25519_DEFS= -DED25519_ref10 -DED25519_amd64_51_30k -DED25519_amd64_64_24k -DED25519_donna
ED25519_ref10= $(patsubst %.c,%.c.o,$(wildcard ed25519/ref10/*.c))
ED25519_amd64_51_30k= \
$(patsubst %.c,%.c.o,$(wildcard ed25519/amd64-51-30k/*.c)) \
@ -13,6 +14,7 @@ ED25519_amd64_51_30k= \
ED25519_amd64_64_24k= \
$(patsubst %.c,%.c.o,$(wildcard ed25519/amd64-64-24k/*.c)) \
$(patsubst %.s,%.s.o,$(wildcard ed25519/amd64-64-24k/*.s))
ED25519_donna=
ED25519OBJ= $(ED25519_@ED25519IMPL@)
MAINOBJ= \
@ -81,7 +83,7 @@ clean:
$(RM) $(EXE)
depend:
makedepend -Y -fMakefile.in -o.c.o -- $(CSTD) -DED25519_ref10 -DED25519_amd64_51_30k -DED25519_amd64_64_24k -- $(ALLC)
makedepend -Y -fMakefile.in -o.c.o -- $(CSTD) $(ED25519_DEFS) -- $(ALLC)
# DO NOT DELETE THIS LINE
@ -349,12 +351,22 @@ ed25519/ref10/sign.c.o: ed25519/amd64-51-30k/crypto_hash_sha512.h
ed25519/ref10/sign.c.o: ed25519/ref10/ge.h ed25519/ref10/fe.h
ed25519/ref10/sign.c.o: ed25519/ref10/crypto_int32.h ed25519/ref10/sc.h
keccak.c.o: types.h keccak.h
main.c.o: types.h likely.h vec.h base32.h ed25519/ed25519.h
main.c.o: types.h likely.h vec.h base32.h keccak.h ed25519/ed25519.h
main.c.o: ed25519/ref10/ed25519.h ed25519/ref10/ge.h ed25519/ref10/fe.h
main.c.o: ed25519/ref10/crypto_int32.h ed25519/amd64-51-30k/ed25519.h
main.c.o: ed25519/amd64-51-30k/ge25519.h ed25519/amd64-51-30k/fe25519.h
main.c.o: ed25519/amd64-51-30k/sc25519.h ed25519/amd64-64-24k/ed25519.h
main.c.o: ed25519/amd64-64-24k/ge25519.h keccak.h
main.c.o: ed25519/amd64-64-24k/ge25519.h
main.c.o: ed25519/ed25519-donna/ed25519-donna.h
main.c.o: ed25519/ed25519-donna/ed25519-donna-portable.h
main.c.o: ed25519/ed25519-donna/ed25519-donna-portable-identify.h
main.c.o: ed25519/ed25519-donna/curve25519-donna-64bit.h
main.c.o: ed25519/ed25519-donna/curve25519-donna-helpers.h
main.c.o: ed25519/ed25519-donna/modm-donna-64bit.h
main.c.o: ed25519/ed25519-donna/ed25519-donna-basepoint-table.h
main.c.o: ed25519/ed25519-donna/ed25519-donna-64bit-tables.h
main.c.o: ed25519/ed25519-donna/ed25519-donna-64bit-x86.h
main.c.o: ed25519/ed25519-donna/ed25519-donna-impl-base.h
test_base16.c.o: types.h base16.h
test_base32.c.o: types.h base32.h
test_ed25519.c.o: types.h base16.h ed25519/ed25519.h ed25519/ref10/ed25519.h
@ -365,3 +377,13 @@ test_ed25519.c.o: ed25519/amd64-51-30k/fe25519.h
test_ed25519.c.o: ed25519/amd64-51-30k/sc25519.h
test_ed25519.c.o: ed25519/amd64-64-24k/ed25519.h
test_ed25519.c.o: ed25519/amd64-64-24k/ge25519.h
test_ed25519.c.o: ed25519/ed25519-donna/ed25519-donna.h
test_ed25519.c.o: ed25519/ed25519-donna/ed25519-donna-portable.h
test_ed25519.c.o: ed25519/ed25519-donna/ed25519-donna-portable-identify.h
test_ed25519.c.o: ed25519/ed25519-donna/curve25519-donna-64bit.h
test_ed25519.c.o: ed25519/ed25519-donna/curve25519-donna-helpers.h
test_ed25519.c.o: ed25519/ed25519-donna/modm-donna-64bit.h
test_ed25519.c.o: ed25519/ed25519-donna/ed25519-donna-basepoint-table.h
test_ed25519.c.o: ed25519/ed25519-donna/ed25519-donna-64bit-tables.h
test_ed25519.c.o: ed25519/ed25519-donna/ed25519-donna-64bit-x86.h
test_ed25519.c.o: ed25519/ed25519-donna/ed25519-donna-impl-base.h

View file

@ -5,10 +5,12 @@ AC_CONFIG_SRCDIR([main.c])
: ${CFLAGS="-O3 -march=native -fomit-frame-pointer"}
AC_PROG_CC
MYDEFS=""
ed25519impl=""
AC_ARG_ENABLE([ref10],
[AS_HELP_STRING([--enable-ref10],
[use ref10 ed25519 implementation @<:@default=yes@:>@])],
[use SUPERCOP ref10 ed25519 implementation @<:@default=yes@:>@])],
[
AS_IF([test "x$ed25519impl" != "x" -a "$ed25519impl" != "ref10"],
[AC_ERROR([only one ed25519 implementation can be defined])])
@ -17,9 +19,9 @@ AC_ARG_ENABLE([ref10],
[]
)
AC_ARG_ENABLE([amd64_51_30k],
[AS_HELP_STRING([--enable-amd64_51_30k],
[use amd64_51_30k ed25519 implementation @<:@default=no@:>@])],
AC_ARG_ENABLE([amd64-51-30k],
[AS_HELP_STRING([--enable-amd64-51-30k],
[use SUPERCOP amd64-51-30k ed25519 implementation @<:@default=no@:>@])],
[
AS_IF([test "x$ed25519impl" != "x" -a "$ed25519impl" != "amd64_51_30k"],
[AC_ERROR([only one ed25519 implementation can be defined])])
@ -28,9 +30,9 @@ AC_ARG_ENABLE([amd64_51_30k],
[]
)
AC_ARG_ENABLE([amd64_64_24k],
[AS_HELP_STRING([--enable-amd64_64_24k],
[use amd64_64_24k ed25519 implementation @<:@default=no@:>@])],
AC_ARG_ENABLE([amd64-64-24k],
[AS_HELP_STRING([--enable-amd64-64-24k],
[use SUPERCOP amd64-64-24k ed25519 implementation @<:@default=no@:>@])],
[
AS_IF([test "x$ed25519impl" != "x" -a "$ed25519impl" != "amd64_64_24k"],
[AC_ERROR([only one ed25519 implementation can be defined])])
@ -39,9 +41,36 @@ AC_ARG_ENABLE([amd64_64_24k],
[]
)
AC_ARG_ENABLE([donna],
[AS_HELP_STRING([--enable-donna],
[use ed25519-donna implementation @<:@default=no@:>@])],
[
AS_IF([test "x$ed25519impl" != "x" -a "$ed25519impl" != "donna"],
[AC_ERROR([only one ed25519 implementation can be defined])])
ed25519impl="donna"
],
[]
)
AC_ARG_ENABLE([donna-sse2],
[AS_HELP_STRING([--enable-donna-sse2],
[use ed25519-donna SSE2 implementation @<:@default=no@:>@])],
[
AS_IF([test "x$ed25519impl" != "x" -a "$ed25519impl" != "donna-sse2"],
[AC_ERROR([only one ed25519 implementation can be defined])])
ed25519impl="donna-sse2"
],
[]
)
AS_IF([test "x$ed25519impl" == "x"],[ed25519impl=ref10])
MYDEFS=""
if test "$ed25519impl" = "donna-sse2"
then
ed25519impl="donna"
MYDEFS="$MYDEFS -DED25519_SSE2"
CFLAGS="$CFLAGS -msse2"
fi
AC_ARG_ENABLE([intfilter],
[AS_HELP_STRING([--enable-intfilter],

1
ed25519/ed25519-donna Submodule

@ -0,0 +1 @@
Subproject commit 8757bd4cd209cb032853ece0ce413f122eef212c

View file

@ -33,6 +33,7 @@ static const ge_cached ge_eightpoint = {
11267669, -24569594, 14624995
}
};
inline static void ge_initeightpoint() {}
#endif
#ifdef ED25519_amd64_51_30k
@ -68,6 +69,7 @@ static const ge25519_pniels ge_eightpoint = {
// t2d
{{ 1700965895112270, 372560131616985, 329575203620664, 756160485635107, 981466775886086 }},
};
inline static void ge_initeightpoint() {}
#endif
#ifdef ED25519_amd64_64_24k
@ -103,4 +105,108 @@ static const ge25519_pniels ge_eightpoint = {
// t2d
{{ 9713713562319586894U, 4328467261753610859U, 8262494979546083277U, 4020087914029409631U }},
};
inline static void ge_initeightpoint() {}
#endif
#ifdef ED25519_donna
#define ED25519_CUSTOMRANDOM
#define ED25519_CUSTOMHASH
#include <sodium/crypto_hash_sha512.h>
#include "ed25519-donna/ed25519-donna.h"
static int ed25519_seckey_expand(unsigned char *sk,const unsigned char *seed)
{
crypto_hash_sha512(sk,seed,32);
sk[0] &= 248;
sk[31] &= 127;
sk[31] |= 64;
return 0;
}
static int ed25519_seckey(unsigned char *sk)
{
unsigned char seed[32];
randombytes(seed,32);
return ed25519_seckey_expand(sk,seed);
}
static int ed25519_pubkey(unsigned char *pk,const unsigned char *sk)
{
bignum256modm a;
ge25519 ALIGN(16) A;
expand256_modm(a,sk,32);
ge25519_scalarmult_base_niels(&A,ge25519_niels_base_multiples,a);
ge25519_pack(pk,&A);
return 0;
}
static int ed25519_keypair(unsigned char *pk,unsigned char *sk)
{
ed25519_seckey(sk);
ed25519_pubkey(pk,sk);
return 0;
}
// hacky, but works for current stuff in main.c
#define ge_p1p1 ge25519_p1p1 ALIGN(16)
#define ge_p3 ge25519 ALIGN(16)
#define ge_cached ge25519_pniels ALIGN(16)
#define ge_p1p1_to_p3 ge25519_p1p1_to_full
#define ge_p3_tobytes ge25519_pack
DONNA_INLINE static void ge_add(ge25519_p1p1 *r,const ge25519 *p,const ge25519_pniels *q)
{
ge25519_pnielsadd_p1p1(r,p,q,0);
}
DONNA_INLINE static void ge_scalarmult_base(ge25519 *A,const unsigned char *sk)
{
bignum256modm ALIGN(16) a;
expand256_modm(a,sk,32);
ge25519_scalarmult_base_niels(A,ge25519_niels_base_multiples,a);
}
static ge25519_pniels ALIGN(16) ge_eightpoint;
// portable representation of (basepoint * 8)
static u8 fe_ysubx[32] = {
0xE0,0xC3,0x64,0xC7,0xDC,0xAD,0x36,0x5E,
0x25,0xAA,0x86,0xC8,0xC7,0x85,0x5F,0x07,
0x67,0x65,0x1C,0x3D,0x99,0xDD,0x26,0x55,
0x9C,0xB5,0x71,0x1E,0x1D,0xC4,0xC8,0x71,
};
static u8 fe_xaddy[32] = {
0x9C,0xFD,0xE3,0xC2,0x2A,0x15,0x34,0x1B,
0x3B,0xE7,0x62,0xAB,0x56,0xFA,0xDF,0xE7,
0xCF,0xBE,0xB5,0x8D,0x83,0x8A,0x1D,0xA5,
0xAD,0x3E,0x42,0x42,0xC9,0x4F,0x1B,0x09,
};
static u8 fe_z[32] = {
0x77,0xAA,0x7F,0x85,0x02,0x8E,0xF5,0xD9,
0x52,0xFE,0x8F,0xE6,0x8A,0x52,0x21,0x4A,
0xCB,0x8D,0x1C,0x05,0x7D,0xAD,0x4A,0x1B,
0xC6,0x7B,0x23,0x9D,0x4C,0x3F,0xD6,0x02,
};
static u8 fe_t2d[32] = {
0x4E,0x06,0xF4,0xFB,0x04,0x0B,0xCE,0x86,
0x6B,0x52,0xBB,0x96,0x0A,0xCE,0x11,0x3C,
0xCD,0xEF,0x4A,0x46,0x68,0x47,0xAA,0x72,
0x5F,0x65,0x90,0x91,0xA8,0x38,0xCA,0x37,
};
// initialize from packed representation
static void ge_initeightpoint()
{
memset(&ge_eightpoint,0,sizeof(ge_eightpoint));
curve25519_expand(ge_eightpoint.ysubx,fe_ysubx);
curve25519_expand(ge_eightpoint.xaddy,fe_xaddy);
curve25519_expand(ge_eightpoint.z,fe_z);
curve25519_expand(ge_eightpoint.t2d,fe_t2d);
}
#endif

3
main.c
View file

@ -13,8 +13,8 @@
#include "likely.h"
#include "vec.h"
#include "base32.h"
#include "ed25519/ed25519.h"
#include "keccak.h"
#include "ed25519/ed25519.h"
// additional leading zero is added by C
static const char * const pkprefix = "== ed25519v1-public: type0 ==\0\0";
@ -553,6 +553,7 @@ int main(int argc,char **argv)
#endif
int tret;
ge_initeightpoint();
filters_init();
fout = stdout;