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Merge branch 'bug13280'

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This commit is contained in:
Nick Mathewson 2014-09-28 21:01:14 -04:00
commit 47fab50cba
10 changed files with 243 additions and 201 deletions
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22
src/ext/ed25519/ref10/crypto_int32.h
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@ -1,3 +1,25 @@
/* Added for Tor. */
#ifndef CRYPTO_INT32_H
#define CRYPTO_INT32_H
#include "torint.h"
#define crypto_int32 int32_t
#define crypto_uint32 uint32_t
/*
Stop signed left shifts overflowing
by using unsigned types for bitwise operations
*/
#ifndef OVERFLOW_SAFE_SIGNED_LSHIFT
#define OVERFLOW_SAFE_SIGNED_LSHIFT(s, lshift, utype, stype) \
((stype)((utype)(s) << (utype)(lshift)))
#endif
#define SHL32(s, lshift) \
OVERFLOW_SAFE_SIGNED_LSHIFT(s, lshift, crypto_uint32, crypto_int32)
#define SHL8(s, lshift) \
OVERFLOW_SAFE_SIGNED_LSHIFT(s, lshift, unsigned char, signed char)
#endif /* CRYPTO_INT32_H */

20
src/ext/ed25519/ref10/crypto_int64.h
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@ -1,3 +1,23 @@
/* Added for Tor. */
#ifndef CRYPTO_INT64_H
#define CRYPTO_INT64_H
#include "torint.h"
#define crypto_int64 int64_t
#define crypto_uint64 uint64_t
/*
Stop signed left shifts overflowing
by using unsigned types for bitwise operations
*/
#ifndef OVERFLOW_SAFE_SIGNED_LSHIFT
#define OVERFLOW_SAFE_SIGNED_LSHIFT(s, lshift, utype, stype) \
((stype)((utype)(s) << (utype)(lshift)))
#endif
#define SHL64(s, lshift) \
OVERFLOW_SAFE_SIGNED_LSHIFT(s, lshift, crypto_uint64, crypto_int64)
#endif /* CRYPTO_INT64_H */

20
src/ext/ed25519/ref10/fe_frombytes.c
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@ -48,17 +48,17 @@ void fe_frombytes(fe h,const unsigned char *s)
crypto_int64 carry8;
crypto_int64 carry9;
carry9 = (h9 + (crypto_int64) (1<<24)) >> 25; h0 += carry9 * 19; h9 -= carry9 << 25;
carry1 = (h1 + (crypto_int64) (1<<24)) >> 25; h2 += carry1; h1 -= carry1 << 25;
carry3 = (h3 + (crypto_int64) (1<<24)) >> 25; h4 += carry3; h3 -= carry3 << 25;
carry5 = (h5 + (crypto_int64) (1<<24)) >> 25; h6 += carry5; h5 -= carry5 << 25;
carry7 = (h7 + (crypto_int64) (1<<24)) >> 25; h8 += carry7; h7 -= carry7 << 25;
carry9 = (h9 + (crypto_int64) (1<<24)) >> 25; h0 += carry9 * 19; h9 -= SHL64(carry9,25);
carry1 = (h1 + (crypto_int64) (1<<24)) >> 25; h2 += carry1; h1 -= SHL64(carry1,25);
carry3 = (h3 + (crypto_int64) (1<<24)) >> 25; h4 += carry3; h3 -= SHL64(carry3,25);
carry5 = (h5 + (crypto_int64) (1<<24)) >> 25; h6 += carry5; h5 -= SHL64(carry5,25);
carry7 = (h7 + (crypto_int64) (1<<24)) >> 25; h8 += carry7; h7 -= SHL64(carry7,25);
carry0 = (h0 + (crypto_int64) (1<<25)) >> 26; h1 += carry0; h0 -= carry0 << 26;
carry2 = (h2 + (crypto_int64) (1<<25)) >> 26; h3 += carry2; h2 -= carry2 << 26;
carry4 = (h4 + (crypto_int64) (1<<25)) >> 26; h5 += carry4; h4 -= carry4 << 26;
carry6 = (h6 + (crypto_int64) (1<<25)) >> 26; h7 += carry6; h6 -= carry6 << 26;
carry8 = (h8 + (crypto_int64) (1<<25)) >> 26; h9 += carry8; h8 -= carry8 << 26;
carry0 = (h0 + (crypto_int64) (1<<25)) >> 26; h1 += carry0; h0 -= SHL64(carry0,26);
carry2 = (h2 + (crypto_int64) (1<<25)) >> 26; h3 += carry2; h2 -= SHL64(carry2,26);
carry4 = (h4 + (crypto_int64) (1<<25)) >> 26; h5 += carry4; h4 -= SHL64(carry4,26);
carry6 = (h6 + (crypto_int64) (1<<25)) >> 26; h7 += carry6; h6 -= SHL64(carry6,26);
carry8 = (h8 + (crypto_int64) (1<<25)) >> 26; h9 += carry8; h8 -= SHL64(carry8,26);
h[0] = (crypto_int32) h0;
h[1] = (crypto_int32) h1;

24
src/ext/ed25519/ref10/fe_mul.c
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@ -197,46 +197,46 @@ void fe_mul(fe h,const fe f,const fe g)
i.e. |h1| <= 1.7*2^59; narrower ranges for h3, h5, h7, h9
*/
carry0 = (h0 + (crypto_int64) (1<<25)) >> 26; h1 += carry0; h0 -= carry0 << 26;
carry4 = (h4 + (crypto_int64) (1<<25)) >> 26; h5 += carry4; h4 -= carry4 << 26;
carry0 = (h0 + (crypto_int64) (1<<25)) >> 26; h1 += carry0; h0 -= SHL64(carry0,26);
carry4 = (h4 + (crypto_int64) (1<<25)) >> 26; h5 += carry4; h4 -= SHL64(carry4,26);
/* |h0| <= 2^25 */
/* |h4| <= 2^25 */
/* |h1| <= 1.71*2^59 */
/* |h5| <= 1.71*2^59 */
carry1 = (h1 + (crypto_int64) (1<<24)) >> 25; h2 += carry1; h1 -= carry1 << 25;
carry5 = (h5 + (crypto_int64) (1<<24)) >> 25; h6 += carry5; h5 -= carry5 << 25;
carry1 = (h1 + (crypto_int64) (1<<24)) >> 25; h2 += carry1; h1 -= SHL64(carry1,25);
carry5 = (h5 + (crypto_int64) (1<<24)) >> 25; h6 += carry5; h5 -= SHL64(carry5,25);
/* |h1| <= 2^24; from now on fits into int32 */
/* |h5| <= 2^24; from now on fits into int32 */
/* |h2| <= 1.41*2^60 */
/* |h6| <= 1.41*2^60 */
carry2 = (h2 + (crypto_int64) (1<<25)) >> 26; h3 += carry2; h2 -= carry2 << 26;
carry6 = (h6 + (crypto_int64) (1<<25)) >> 26; h7 += carry6; h6 -= carry6 << 26;
carry2 = (h2 + (crypto_int64) (1<<25)) >> 26; h3 += carry2; h2 -= SHL64(carry2,26);
carry6 = (h6 + (crypto_int64) (1<<25)) >> 26; h7 += carry6; h6 -= SHL64(carry6,26);
/* |h2| <= 2^25; from now on fits into int32 unchanged */
/* |h6| <= 2^25; from now on fits into int32 unchanged */
/* |h3| <= 1.71*2^59 */
/* |h7| <= 1.71*2^59 */
carry3 = (h3 + (crypto_int64) (1<<24)) >> 25; h4 += carry3; h3 -= carry3 << 25;
carry7 = (h7 + (crypto_int64) (1<<24)) >> 25; h8 += carry7; h7 -= carry7 << 25;
carry3 = (h3 + (crypto_int64) (1<<24)) >> 25; h4 += carry3; h3 -= SHL64(carry3,25);
carry7 = (h7 + (crypto_int64) (1<<24)) >> 25; h8 += carry7; h7 -= SHL64(carry7,25);
/* |h3| <= 2^24; from now on fits into int32 unchanged */
/* |h7| <= 2^24; from now on fits into int32 unchanged */
/* |h4| <= 1.72*2^34 */
/* |h8| <= 1.41*2^60 */
carry4 = (h4 + (crypto_int64) (1<<25)) >> 26; h5 += carry4; h4 -= carry4 << 26;
carry8 = (h8 + (crypto_int64) (1<<25)) >> 26; h9 += carry8; h8 -= carry8 << 26;
carry4 = (h4 + (crypto_int64) (1<<25)) >> 26; h5 += carry4; h4 -= SHL64(carry4,26);
carry8 = (h8 + (crypto_int64) (1<<25)) >> 26; h9 += carry8; h8 -= SHL64(carry8,26);
/* |h4| <= 2^25; from now on fits into int32 unchanged */
/* |h8| <= 2^25; from now on fits into int32 unchanged */
/* |h5| <= 1.01*2^24 */
/* |h9| <= 1.71*2^59 */
carry9 = (h9 + (crypto_int64) (1<<24)) >> 25; h0 += carry9 * 19; h9 -= carry9 << 25;
carry9 = (h9 + (crypto_int64) (1<<24)) >> 25; h0 += carry9 * 19; h9 -= SHL64(carry9,25);
/* |h9| <= 2^24; from now on fits into int32 unchanged */
/* |h0| <= 1.1*2^39 */
carry0 = (h0 + (crypto_int64) (1<<25)) >> 26; h1 += carry0; h0 -= carry0 << 26;
carry0 = (h0 + (crypto_int64) (1<<25)) >> 26; h1 += carry0; h0 -= SHL64(carry0,26);
/* |h0| <= 2^25; from now on fits into int32 unchanged */
/* |h1| <= 1.01*2^24 */

24
src/ext/ed25519/ref10/fe_sq.c
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@ -117,24 +117,24 @@ void fe_sq(fe h,const fe f)
crypto_int64 carry8;
crypto_int64 carry9;
carry0 = (h0 + (crypto_int64) (1<<25)) >> 26; h1 += carry0; h0 -= carry0 << 26;
carry4 = (h4 + (crypto_int64) (1<<25)) >> 26; h5 += carry4; h4 -= carry4 << 26;
carry0 = (h0 + (crypto_int64) (1<<25)) >> 26; h1 += carry0; h0 -= SHL64(carry0,26);
carry4 = (h4 + (crypto_int64) (1<<25)) >> 26; h5 += carry4; h4 -= SHL64(carry4,26);
carry1 = (h1 + (crypto_int64) (1<<24)) >> 25; h2 += carry1; h1 -= carry1 << 25;
carry5 = (h5 + (crypto_int64) (1<<24)) >> 25; h6 += carry5; h5 -= carry5 << 25;
carry1 = (h1 + (crypto_int64) (1<<24)) >> 25; h2 += carry1; h1 -= SHL64(carry1,25);
carry5 = (h5 + (crypto_int64) (1<<24)) >> 25; h6 += carry5; h5 -= SHL64(carry5,25);
carry2 = (h2 + (crypto_int64) (1<<25)) >> 26; h3 += carry2; h2 -= carry2 << 26;
carry6 = (h6 + (crypto_int64) (1<<25)) >> 26; h7 += carry6; h6 -= carry6 << 26;
carry2 = (h2 + (crypto_int64) (1<<25)) >> 26; h3 += carry2; h2 -= SHL64(carry2,26);
carry6 = (h6 + (crypto_int64) (1<<25)) >> 26; h7 += carry6; h6 -= SHL64(carry6,26);
carry3 = (h3 + (crypto_int64) (1<<24)) >> 25; h4 += carry3; h3 -= carry3 << 25;
carry7 = (h7 + (crypto_int64) (1<<24)) >> 25; h8 += carry7; h7 -= carry7 << 25;
carry3 = (h3 + (crypto_int64) (1<<24)) >> 25; h4 += carry3; h3 -= SHL64(carry3,25);
carry7 = (h7 + (crypto_int64) (1<<24)) >> 25; h8 += carry7; h7 -= SHL64(carry7,25);
carry4 = (h4 + (crypto_int64) (1<<25)) >> 26; h5 += carry4; h4 -= carry4 << 26;
carry8 = (h8 + (crypto_int64) (1<<25)) >> 26; h9 += carry8; h8 -= carry8 << 26;
carry4 = (h4 + (crypto_int64) (1<<25)) >> 26; h5 += carry4; h4 -= SHL64(carry4,26);
carry8 = (h8 + (crypto_int64) (1<<25)) >> 26; h9 += carry8; h8 -= SHL64(carry8,26);
carry9 = (h9 + (crypto_int64) (1<<24)) >> 25; h0 += carry9 * 19; h9 -= carry9 << 25;
carry9 = (h9 + (crypto_int64) (1<<24)) >> 25; h0 += carry9 * 19; h9 -= SHL64(carry9,25);
carry0 = (h0 + (crypto_int64) (1<<25)) >> 26; h1 += carry0; h0 -= carry0 << 26;
carry0 = (h0 + (crypto_int64) (1<<25)) >> 26; h1 += carry0; h0 -= SHL64(carry0,26);
h[0] = (crypto_int32) h0;
h[1] = (crypto_int32) h1;

24
src/ext/ed25519/ref10/fe_sq2.c
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@ -128,24 +128,24 @@ void fe_sq2(fe h,const fe f)
h8 += h8;
h9 += h9;
carry0 = (h0 + (crypto_int64) (1<<25)) >> 26; h1 += carry0; h0 -= carry0 << 26;
carry4 = (h4 + (crypto_int64) (1<<25)) >> 26; h5 += carry4; h4 -= carry4 << 26;
carry0 = (h0 + (crypto_int64) (1<<25)) >> 26; h1 += carry0; h0 -= SHL64(carry0,26);
carry4 = (h4 + (crypto_int64) (1<<25)) >> 26; h5 += carry4; h4 -= SHL64(carry4,26);
carry1 = (h1 + (crypto_int64) (1<<24)) >> 25; h2 += carry1; h1 -= carry1 << 25;
carry5 = (h5 + (crypto_int64) (1<<24)) >> 25; h6 += carry5; h5 -= carry5 << 25;
carry1 = (h1 + (crypto_int64) (1<<24)) >> 25; h2 += carry1; h1 -= SHL64(carry1,25);
carry5 = (h5 + (crypto_int64) (1<<24)) >> 25; h6 += carry5; h5 -= SHL64(carry5,25);
carry2 = (h2 + (crypto_int64) (1<<25)) >> 26; h3 += carry2; h2 -= carry2 << 26;
carry6 = (h6 + (crypto_int64) (1<<25)) >> 26; h7 += carry6; h6 -= carry6 << 26;
carry2 = (h2 + (crypto_int64) (1<<25)) >> 26; h3 += carry2; h2 -= SHL64(carry2,26);
carry6 = (h6 + (crypto_int64) (1<<25)) >> 26; h7 += carry6; h6 -= SHL64(carry6,26);
carry3 = (h3 + (crypto_int64) (1<<24)) >> 25; h4 += carry3; h3 -= carry3 << 25;
carry7 = (h7 + (crypto_int64) (1<<24)) >> 25; h8 += carry7; h7 -= carry7 << 25;
carry3 = (h3 + (crypto_int64) (1<<24)) >> 25; h4 += carry3; h3 -= SHL64(carry3,25);
carry7 = (h7 + (crypto_int64) (1<<24)) >> 25; h8 += carry7; h7 -= SHL64(carry7,25);
carry4 = (h4 + (crypto_int64) (1<<25)) >> 26; h5 += carry4; h4 -= carry4 << 26;
carry8 = (h8 + (crypto_int64) (1<<25)) >> 26; h9 += carry8; h8 -= carry8 << 26;
carry4 = (h4 + (crypto_int64) (1<<25)) >> 26; h5 += carry4; h4 -= SHL64(carry4,26);
carry8 = (h8 + (crypto_int64) (1<<25)) >> 26; h9 += carry8; h8 -= SHL64(carry8,26);
carry9 = (h9 + (crypto_int64) (1<<24)) >> 25; h0 += carry9 * 19; h9 -= carry9 << 25;
carry9 = (h9 + (crypto_int64) (1<<24)) >> 25; h0 += carry9 * 19; h9 -= SHL64(carry9,25);
carry0 = (h0 + (crypto_int64) (1<<25)) >> 26; h1 += carry0; h0 -= carry0 << 26;
carry0 = (h0 + (crypto_int64) (1<<25)) >> 26; h1 += carry0; h0 -= SHL64(carry0,26);
h[0] = (crypto_int32) h0;
h[1] = (crypto_int32) h1;

36
src/ext/ed25519/ref10/fe_tobytes.c
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@ -65,16 +65,16 @@ void fe_tobytes(unsigned char *s,const fe h)
h0 += 19 * q;
/* Goal: Output h-2^255 q, which is between 0 and 2^255-20. */
carry0 = h0 >> 26; h1 += carry0; h0 -= carry0 << 26;
carry1 = h1 >> 25; h2 += carry1; h1 -= carry1 << 25;
carry2 = h2 >> 26; h3 += carry2; h2 -= carry2 << 26;
carry3 = h3 >> 25; h4 += carry3; h3 -= carry3 << 25;
carry4 = h4 >> 26; h5 += carry4; h4 -= carry4 << 26;
carry5 = h5 >> 25; h6 += carry5; h5 -= carry5 << 25;
carry6 = h6 >> 26; h7 += carry6; h6 -= carry6 << 26;
carry7 = h7 >> 25; h8 += carry7; h7 -= carry7 << 25;
carry8 = h8 >> 26; h9 += carry8; h8 -= carry8 << 26;
carry9 = h9 >> 25; h9 -= carry9 << 25;
carry0 = h0 >> 26; h1 += carry0; h0 -= SHL32(carry0,26);
carry1 = h1 >> 25; h2 += carry1; h1 -= SHL32(carry1,25);
carry2 = h2 >> 26; h3 += carry2; h2 -= SHL32(carry2,26);
carry3 = h3 >> 25; h4 += carry3; h3 -= SHL32(carry3,25);
carry4 = h4 >> 26; h5 += carry4; h4 -= SHL32(carry4,26);
carry5 = h5 >> 25; h6 += carry5; h5 -= SHL32(carry5,25);
carry6 = h6 >> 26; h7 += carry6; h6 -= SHL32(carry6,26);
carry7 = h7 >> 25; h8 += carry7; h7 -= SHL32(carry7,25);
carry8 = h8 >> 26; h9 += carry8; h8 -= SHL32(carry8,26);
carry9 = h9 >> 25; h9 -= SHL32(carry9,25);
/* h10 = carry9 */
/*
@ -87,32 +87,32 @@ void fe_tobytes(unsigned char *s,const fe h)
s[0] = h0 >> 0;
s[1] = h0 >> 8;
s[2] = h0 >> 16;
s[3] = (h0 >> 24) | (h1 << 2);
s[3] = (h0 >> 24) | SHL32(h1,2);
s[4] = h1 >> 6;
s[5] = h1 >> 14;
s[6] = (h1 >> 22) | (h2 << 3);
s[6] = (h1 >> 22) | SHL32(h2,3);
s[7] = h2 >> 5;
s[8] = h2 >> 13;
s[9] = (h2 >> 21) | (h3 << 5);
s[9] = (h2 >> 21) | SHL32(h3,5);
s[10] = h3 >> 3;
s[11] = h3 >> 11;
s[12] = (h3 >> 19) | (h4 << 6);
s[12] = (h3 >> 19) | SHL32(h4,6);
s[13] = h4 >> 2;
s[14] = h4 >> 10;
s[15] = h4 >> 18;
s[16] = h5 >> 0;
s[17] = h5 >> 8;
s[18] = h5 >> 16;
s[19] = (h5 >> 24) | (h6 << 1);
s[19] = (h5 >> 24) | SHL32(h6,1);
s[20] = h6 >> 7;
s[21] = h6 >> 15;
s[22] = (h6 >> 23) | (h7 << 3);
s[22] = (h6 >> 23) | SHL32(h7,3);
s[23] = h7 >> 5;
s[24] = h7 >> 13;
s[25] = (h7 >> 21) | (h8 << 4);
s[25] = (h7 >> 21) | SHL32(h8,4);
s[26] = h8 >> 4;
s[27] = h8 >> 12;
s[28] = (h8 >> 20) | (h9 << 6);
s[28] = (h8 >> 20) | SHL32(h9,6);
s[29] = h9 >> 2;
s[30] = h9 >> 10;
s[31] = h9 >> 18;

4
src/ext/ed25519/ref10/ge_scalarmult_base.c
View File

@ -39,7 +39,7 @@ static void select(ge_precomp *t,int pos,signed char b)
{
ge_precomp minust;
unsigned char bnegative = negative(b);
unsigned char babs = b - (((-bnegative) & b) << 1);
unsigned char babs = b - SHL8( (-bnegative) & (unsigned char)b, 1);
ge_precomp_0(t);
cmov(t,&base[pos][0],equal(babs,1));
@ -86,7 +86,7 @@ void ge_scalarmult_base(ge_p3 *h,const unsigned char *a)
e[i] += carry;
carry = e[i] + 8;
carry >>= 4;
e[i] -= carry << 4;
e[i] -= SHL8(carry,4);
}
e[63] += carry;
/* each e[i] is between -8 and 8 */

158
src/ext/ed25519/ref10/sc_muladd.c
View File

@ -144,30 +144,30 @@ void sc_muladd(unsigned char *s,const unsigned char *a,const unsigned char *b,co
s22 = a11*b11;
s23 = 0;
carry0 = (s0 + (1<<20)) >> 21; s1 += carry0; s0 -= carry0 << 21;
carry2 = (s2 + (1<<20)) >> 21; s3 += carry2; s2 -= carry2 << 21;
carry4 = (s4 + (1<<20)) >> 21; s5 += carry4; s4 -= carry4 << 21;
carry6 = (s6 + (1<<20)) >> 21; s7 += carry6; s6 -= carry6 << 21;
carry8 = (s8 + (1<<20)) >> 21; s9 += carry8; s8 -= carry8 << 21;
carry10 = (s10 + (1<<20)) >> 21; s11 += carry10; s10 -= carry10 << 21;
carry12 = (s12 + (1<<20)) >> 21; s13 += carry12; s12 -= carry12 << 21;
carry14 = (s14 + (1<<20)) >> 21; s15 += carry14; s14 -= carry14 << 21;
carry16 = (s16 + (1<<20)) >> 21; s17 += carry16; s16 -= carry16 << 21;
carry18 = (s18 + (1<<20)) >> 21; s19 += carry18; s18 -= carry18 << 21;
carry20 = (s20 + (1<<20)) >> 21; s21 += carry20; s20 -= carry20 << 21;
carry22 = (s22 + (1<<20)) >> 21; s23 += carry22; s22 -= carry22 << 21;
carry0 = (s0 + (1<<20)) >> 21; s1 += carry0; s0 -= SHL64(carry0,21);
carry2 = (s2 + (1<<20)) >> 21; s3 += carry2; s2 -= SHL64(carry2,21);
carry4 = (s4 + (1<<20)) >> 21; s5 += carry4; s4 -= SHL64(carry4,21);
carry6 = (s6 + (1<<20)) >> 21; s7 += carry6; s6 -= SHL64(carry6,21);
carry8 = (s8 + (1<<20)) >> 21; s9 += carry8; s8 -= SHL64(carry8,21);
carry10 = (s10 + (1<<20)) >> 21; s11 += carry10; s10 -= SHL64(carry10,21);
carry12 = (s12 + (1<<20)) >> 21; s13 += carry12; s12 -= SHL64(carry12,21);
carry14 = (s14 + (1<<20)) >> 21; s15 += carry14; s14 -= SHL64(carry14,21);
carry16 = (s16 + (1<<20)) >> 21; s17 += carry16; s16 -= SHL64(carry16,21);
carry18 = (s18 + (1<<20)) >> 21; s19 += carry18; s18 -= SHL64(carry18,21);
carry20 = (s20 + (1<<20)) >> 21; s21 += carry20; s20 -= SHL64(carry20,21);
carry22 = (s22 + (1<<20)) >> 21; s23 += carry22; s22 -= SHL64(carry22,21);
carry1 = (s1 + (1<<20)) >> 21; s2 += carry1; s1 -= carry1 << 21;
carry3 = (s3 + (1<<20)) >> 21; s4 += carry3; s3 -= carry3 << 21;
carry5 = (s5 + (1<<20)) >> 21; s6 += carry5; s5 -= carry5 << 21;
carry7 = (s7 + (1<<20)) >> 21; s8 += carry7; s7 -= carry7 << 21;
carry9 = (s9 + (1<<20)) >> 21; s10 += carry9; s9 -= carry9 << 21;
carry11 = (s11 + (1<<20)) >> 21; s12 += carry11; s11 -= carry11 << 21;
carry13 = (s13 + (1<<20)) >> 21; s14 += carry13; s13 -= carry13 << 21;
carry15 = (s15 + (1<<20)) >> 21; s16 += carry15; s15 -= carry15 << 21;
carry17 = (s17 + (1<<20)) >> 21; s18 += carry17; s17 -= carry17 << 21;
carry19 = (s19 + (1<<20)) >> 21; s20 += carry19; s19 -= carry19 << 21;
carry21 = (s21 + (1<<20)) >> 21; s22 += carry21; s21 -= carry21 << 21;
carry1 = (s1 + (1<<20)) >> 21; s2 += carry1; s1 -= SHL64(carry1,21);
carry3 = (s3 + (1<<20)) >> 21; s4 += carry3; s3 -= SHL64(carry3,21);
carry5 = (s5 + (1<<20)) >> 21; s6 += carry5; s5 -= SHL64(carry5,21);
carry7 = (s7 + (1<<20)) >> 21; s8 += carry7; s7 -= SHL64(carry7,21);
carry9 = (s9 + (1<<20)) >> 21; s10 += carry9; s9 -= SHL64(carry9,21);
carry11 = (s11 + (1<<20)) >> 21; s12 += carry11; s11 -= SHL64(carry11,21);
carry13 = (s13 + (1<<20)) >> 21; s14 += carry13; s13 -= SHL64(carry13,21);
carry15 = (s15 + (1<<20)) >> 21; s16 += carry15; s15 -= SHL64(carry15,21);
carry17 = (s17 + (1<<20)) >> 21; s18 += carry17; s17 -= SHL64(carry17,21);
carry19 = (s19 + (1<<20)) >> 21; s20 += carry19; s19 -= SHL64(carry19,21);
carry21 = (s21 + (1<<20)) >> 21; s22 += carry21; s21 -= SHL64(carry21,21);
s11 += s23 * 666643;
s12 += s23 * 470296;
@ -217,18 +217,18 @@ void sc_muladd(unsigned char *s,const unsigned char *a,const unsigned char *b,co
s11 -= s18 * 683901;
s18 = 0;
carry6 = (s6 + (1<<20)) >> 21; s7 += carry6; s6 -= carry6 << 21;
carry8 = (s8 + (1<<20)) >> 21; s9 += carry8; s8 -= carry8 << 21;
carry10 = (s10 + (1<<20)) >> 21; s11 += carry10; s10 -= carry10 << 21;
carry12 = (s12 + (1<<20)) >> 21; s13 += carry12; s12 -= carry12 << 21;
carry14 = (s14 + (1<<20)) >> 21; s15 += carry14; s14 -= carry14 << 21;
carry16 = (s16 + (1<<20)) >> 21; s17 += carry16; s16 -= carry16 << 21;
carry6 = (s6 + (1<<20)) >> 21; s7 += carry6; s6 -= SHL64(carry6,21);
carry8 = (s8 + (1<<20)) >> 21; s9 += carry8; s8 -= SHL64(carry8,21);
carry10 = (s10 + (1<<20)) >> 21; s11 += carry10; s10 -= SHL64(carry10,21);
carry12 = (s12 + (1<<20)) >> 21; s13 += carry12; s12 -= SHL64(carry12,21);
carry14 = (s14 + (1<<20)) >> 21; s15 += carry14; s14 -= SHL64(carry14,21);
carry16 = (s16 + (1<<20)) >> 21; s17 += carry16; s16 -= SHL64(carry16,21);
carry7 = (s7 + (1<<20)) >> 21; s8 += carry7; s7 -= carry7 << 21;
carry9 = (s9 + (1<<20)) >> 21; s10 += carry9; s9 -= carry9 << 21;
carry11 = (s11 + (1<<20)) >> 21; s12 += carry11; s11 -= carry11 << 21;
carry13 = (s13 + (1<<20)) >> 21; s14 += carry13; s13 -= carry13 << 21;
carry15 = (s15 + (1<<20)) >> 21; s16 += carry15; s15 -= carry15 << 21;
carry7 = (s7 + (1<<20)) >> 21; s8 += carry7; s7 -= SHL64(carry7,21);
carry9 = (s9 + (1<<20)) >> 21; s10 += carry9; s9 -= SHL64(carry9,21);
carry11 = (s11 + (1<<20)) >> 21; s12 += carry11; s11 -= SHL64(carry11,21);
carry13 = (s13 + (1<<20)) >> 21; s14 += carry13; s13 -= SHL64(carry13,21);
carry15 = (s15 + (1<<20)) >> 21; s16 += carry15; s15 -= SHL64(carry15,21);
s5 += s17 * 666643;
s6 += s17 * 470296;
@ -278,19 +278,19 @@ void sc_muladd(unsigned char *s,const unsigned char *a,const unsigned char *b,co
s5 -= s12 * 683901;
s12 = 0;
carry0 = (s0 + (1<<20)) >> 21; s1 += carry0; s0 -= carry0 << 21;
carry2 = (s2 + (1<<20)) >> 21; s3 += carry2; s2 -= carry2 << 21;
carry4 = (s4 + (1<<20)) >> 21; s5 += carry4; s4 -= carry4 << 21;
carry6 = (s6 + (1<<20)) >> 21; s7 += carry6; s6 -= carry6 << 21;
carry8 = (s8 + (1<<20)) >> 21; s9 += carry8; s8 -= carry8 << 21;
carry10 = (s10 + (1<<20)) >> 21; s11 += carry10; s10 -= carry10 << 21;
carry0 = (s0 + (1<<20)) >> 21; s1 += carry0; s0 -= SHL64(carry0,21);
carry2 = (s2 + (1<<20)) >> 21; s3 += carry2; s2 -= SHL64(carry2,21);
carry4 = (s4 + (1<<20)) >> 21; s5 += carry4; s4 -= SHL64(carry4,21);
carry6 = (s6 + (1<<20)) >> 21; s7 += carry6; s6 -= SHL64(carry6,21);
carry8 = (s8 + (1<<20)) >> 21; s9 += carry8; s8 -= SHL64(carry8,21);
carry10 = (s10 + (1<<20)) >> 21; s11 += carry10; s10 -= SHL64(carry10,21);
carry1 = (s1 + (1<<20)) >> 21; s2 += carry1; s1 -= carry1 << 21;
carry3 = (s3 + (1<<20)) >> 21; s4 += carry3; s3 -= carry3 << 21;
carry5 = (s5 + (1<<20)) >> 21; s6 += carry5; s5 -= carry5 << 21;
carry7 = (s7 + (1<<20)) >> 21; s8 += carry7; s7 -= carry7 << 21;
carry9 = (s9 + (1<<20)) >> 21; s10 += carry9; s9 -= carry9 << 21;
carry11 = (s11 + (1<<20)) >> 21; s12 += carry11; s11 -= carry11 << 21;
carry1 = (s1 + (1<<20)) >> 21; s2 += carry1; s1 -= SHL64(carry1,21);
carry3 = (s3 + (1<<20)) >> 21; s4 += carry3; s3 -= SHL64(carry3,21);
carry5 = (s5 + (1<<20)) >> 21; s6 += carry5; s5 -= SHL64(carry5,21);
carry7 = (s7 + (1<<20)) >> 21; s8 += carry7; s7 -= SHL64(carry7,21);
carry9 = (s9 + (1<<20)) >> 21; s10 += carry9; s9 -= SHL64(carry9,21);
carry11 = (s11 + (1<<20)) >> 21; s12 += carry11; s11 -= SHL64(carry11,21);
s0 += s12 * 666643;
s1 += s12 * 470296;
@ -300,18 +300,18 @@ void sc_muladd(unsigned char *s,const unsigned char *a,const unsigned char *b,co
s5 -= s12 * 683901;
s12 = 0;
carry0 = s0 >> 21; s1 += carry0; s0 -= carry0 << 21;
carry1 = s1 >> 21; s2 += carry1; s1 -= carry1 << 21;
carry2 = s2 >> 21; s3 += carry2; s2 -= carry2 << 21;
carry3 = s3 >> 21; s4 += carry3; s3 -= carry3 << 21;
carry4 = s4 >> 21; s5 += carry4; s4 -= carry4 << 21;
carry5 = s5 >> 21; s6 += carry5; s5 -= carry5 << 21;
carry6 = s6 >> 21; s7 += carry6; s6 -= carry6 << 21;
carry7 = s7 >> 21; s8 += carry7; s7 -= carry7 << 21;
carry8 = s8 >> 21; s9 += carry8; s8 -= carry8 << 21;
carry9 = s9 >> 21; s10 += carry9; s9 -= carry9 << 21;
carry10 = s10 >> 21; s11 += carry10; s10 -= carry10 << 21;
carry11 = s11 >> 21; s12 += carry11; s11 -= carry11 << 21;
carry0 = s0 >> 21; s1 += carry0; s0 -= SHL64(carry0,21);
carry1 = s1 >> 21; s2 += carry1; s1 -= SHL64(carry1,21);
carry2 = s2 >> 21; s3 += carry2; s2 -= SHL64(carry2,21);
carry3 = s3 >> 21; s4 += carry3; s3 -= SHL64(carry3,21);
carry4 = s4 >> 21; s5 += carry4; s4 -= SHL64(carry4,21);
carry5 = s5 >> 21; s6 += carry5; s5 -= SHL64(carry5,21);
carry6 = s6 >> 21; s7 += carry6; s6 -= SHL64(carry6,21);
carry7 = s7 >> 21; s8 += carry7; s7 -= SHL64(carry7,21);
carry8 = s8 >> 21; s9 += carry8; s8 -= SHL64(carry8,21);
carry9 = s9 >> 21; s10 += carry9; s9 -= SHL64(carry9,21);
carry10 = s10 >> 21; s11 += carry10; s10 -= SHL64(carry10,21);
carry11 = s11 >> 21; s12 += carry11; s11 -= SHL64(carry11,21);
s0 += s12 * 666643;
s1 += s12 * 470296;
@ -321,47 +321,47 @@ void sc_muladd(unsigned char *s,const unsigned char *a,const unsigned char *b,co
s5 -= s12 * 683901;
s12 = 0;
carry0 = s0 >> 21; s1 += carry0; s0 -= carry0 << 21;
carry1 = s1 >> 21; s2 += carry1; s1 -= carry1 << 21;
carry2 = s2 >> 21; s3 += carry2; s2 -= carry2 << 21;
carry3 = s3 >> 21; s4 += carry3; s3 -= carry3 << 21;
carry4 = s4 >> 21; s5 += carry4; s4 -= carry4 << 21;
carry5 = s5 >> 21; s6 += carry5; s5 -= carry5 << 21;
carry6 = s6 >> 21; s7 += carry6; s6 -= carry6 << 21;
carry7 = s7 >> 21; s8 += carry7; s7 -= carry7 << 21;
carry8 = s8 >> 21; s9 += carry8; s8 -= carry8 << 21;
carry9 = s9 >> 21; s10 += carry9; s9 -= carry9 << 21;
carry10 = s10 >> 21; s11 += carry10; s10 -= carry10 << 21;
carry0 = s0 >> 21; s1 += carry0; s0 -= SHL64(carry0,21);
carry1 = s1 >> 21; s2 += carry1; s1 -= SHL64(carry1,21);
carry2 = s2 >> 21; s3 += carry2; s2 -= SHL64(carry2,21);
carry3 = s3 >> 21; s4 += carry3; s3 -= SHL64(carry3,21);
carry4 = s4 >> 21; s5 += carry4; s4 -= SHL64(carry4,21);
carry5 = s5 >> 21; s6 += carry5; s5 -= SHL64(carry5,21);
carry6 = s6 >> 21; s7 += carry6; s6 -= SHL64(carry6,21);
carry7 = s7 >> 21; s8 += carry7; s7 -= SHL64(carry7,21);
carry8 = s8 >> 21; s9 += carry8; s8 -= SHL64(carry8,21);
carry9 = s9 >> 21; s10 += carry9; s9 -= SHL64(carry9,21);
carry10 = s10 >> 21; s11 += carry10; s10 -= SHL64(carry10,21);
s[0] = s0 >> 0;
s[1] = s0 >> 8;
s[2] = (s0 >> 16) | (s1 << 5);
s[2] = (s0 >> 16) | SHL64(s1,5);
s[3] = s1 >> 3;
s[4] = s1 >> 11;
s[5] = (s1 >> 19) | (s2 << 2);
s[5] = (s1 >> 19) | SHL64(s2,2);
s[6] = s2 >> 6;
s[7] = (s2 >> 14) | (s3 << 7);
s[7] = (s2 >> 14) | SHL64(s3,7);
s[8] = s3 >> 1;
s[9] = s3 >> 9;
s[10] = (s3 >> 17) | (s4 << 4);
s[10] = (s3 >> 17) | SHL64(s4,4);
s[11] = s4 >> 4;
s[12] = s4 >> 12;
s[13] = (s4 >> 20) | (s5 << 1);
s[13] = (s4 >> 20) | SHL64(s5,1);
s[14] = s5 >> 7;
s[15] = (s5 >> 15) | (s6 << 6);
s[15] = (s5 >> 15) | SHL64(s6,6);
s[16] = s6 >> 2;
s[17] = s6 >> 10;
s[18] = (s6 >> 18) | (s7 << 3);
s[18] = (s6 >> 18) | SHL64(s7,3);
s[19] = s7 >> 5;
s[20] = s7 >> 13;
s[21] = s8 >> 0;
s[22] = s8 >> 8;
s[23] = (s8 >> 16) | (s9 << 5);
s[23] = (s8 >> 16) | SHL64(s9,5);
s[24] = s9 >> 3;
s[25] = s9 >> 11;
s[26] = (s9 >> 19) | (s10 << 2);
s[26] = (s9 >> 19) | SHL64(s10,2);
s[27] = s10 >> 6;
s[28] = (s10 >> 14) | (s11 << 7);
s[28] = (s10 >> 14) | SHL64(s11,7);
s[29] = s11 >> 1;
s[30] = s11 >> 9;
s[31] = s11 >> 17;

112
src/ext/ed25519/ref10/sc_reduce.c
View File

@ -124,18 +124,18 @@ void sc_reduce(unsigned char *s)
s11 -= s18 * 683901;
s18 = 0;
carry6 = (s6 + (1<<20)) >> 21; s7 += carry6; s6 -= carry6 << 21;
carry8 = (s8 + (1<<20)) >> 21; s9 += carry8; s8 -= carry8 << 21;
carry10 = (s10 + (1<<20)) >> 21; s11 += carry10; s10 -= carry10 << 21;
carry12 = (s12 + (1<<20)) >> 21; s13 += carry12; s12 -= carry12 << 21;
carry14 = (s14 + (1<<20)) >> 21; s15 += carry14; s14 -= carry14 << 21;
carry16 = (s16 + (1<<20)) >> 21; s17 += carry16; s16 -= carry16 << 21;
carry6 = (s6 + (1<<20)) >> 21; s7 += carry6; s6 -= SHL64(carry6,21);
carry8 = (s8 + (1<<20)) >> 21; s9 += carry8; s8 -= SHL64(carry8,21);
carry10 = (s10 + (1<<20)) >> 21; s11 += carry10; s10 -= SHL64(carry10,21);
carry12 = (s12 + (1<<20)) >> 21; s13 += carry12; s12 -= SHL64(carry12,21);
carry14 = (s14 + (1<<20)) >> 21; s15 += carry14; s14 -= SHL64(carry14,21);
carry16 = (s16 + (1<<20)) >> 21; s17 += carry16; s16 -= SHL64(carry16,21);
carry7 = (s7 + (1<<20)) >> 21; s8 += carry7; s7 -= carry7 << 21;
carry9 = (s9 + (1<<20)) >> 21; s10 += carry9; s9 -= carry9 << 21;
carry11 = (s11 + (1<<20)) >> 21; s12 += carry11; s11 -= carry11 << 21;
carry13 = (s13 + (1<<20)) >> 21; s14 += carry13; s13 -= carry13 << 21;
carry15 = (s15 + (1<<20)) >> 21; s16 += carry15; s15 -= carry15 << 21;
carry7 = (s7 + (1<<20)) >> 21; s8 += carry7; s7 -= SHL64(carry7,21);
carry9 = (s9 + (1<<20)) >> 21; s10 += carry9; s9 -= SHL64(carry9,21);
carry11 = (s11 + (1<<20)) >> 21; s12 += carry11; s11 -= SHL64(carry11,21);
carry13 = (s13 + (1<<20)) >> 21; s14 += carry13; s13 -= SHL64(carry13,21);
carry15 = (s15 + (1<<20)) >> 21; s16 += carry15; s15 -= SHL64(carry15,21);
s5 += s17 * 666643;
s6 += s17 * 470296;
@ -185,19 +185,19 @@ void sc_reduce(unsigned char *s)
s5 -= s12 * 683901;
s12 = 0;
carry0 = (s0 + (1<<20)) >> 21; s1 += carry0; s0 -= carry0 << 21;
carry2 = (s2 + (1<<20)) >> 21; s3 += carry2; s2 -= carry2 << 21;
carry4 = (s4 + (1<<20)) >> 21; s5 += carry4; s4 -= carry4 << 21;
carry6 = (s6 + (1<<20)) >> 21; s7 += carry6; s6 -= carry6 << 21;
carry8 = (s8 + (1<<20)) >> 21; s9 += carry8; s8 -= carry8 << 21;
carry10 = (s10 + (1<<20)) >> 21; s11 += carry10; s10 -= carry10 << 21;
carry0 = (s0 + (1<<20)) >> 21; s1 += carry0; s0 -= SHL64(carry0,21);
carry2 = (s2 + (1<<20)) >> 21; s3 += carry2; s2 -= SHL64(carry2,21);
carry4 = (s4 + (1<<20)) >> 21; s5 += carry4; s4 -= SHL64(carry4,21);
carry6 = (s6 + (1<<20)) >> 21; s7 += carry6; s6 -= SHL64(carry6,21);
carry8 = (s8 + (1<<20)) >> 21; s9 += carry8; s8 -= SHL64(carry8,21);
carry10 = (s10 + (1<<20)) >> 21; s11 += carry10; s10 -= SHL64(carry10,21);
carry1 = (s1 + (1<<20)) >> 21; s2 += carry1; s1 -= carry1 << 21;
carry3 = (s3 + (1<<20)) >> 21; s4 += carry3; s3 -= carry3 << 21;
carry5 = (s5 + (1<<20)) >> 21; s6 += carry5; s5 -= carry5 << 21;
carry7 = (s7 + (1<<20)) >> 21; s8 += carry7; s7 -= carry7 << 21;
carry9 = (s9 + (1<<20)) >> 21; s10 += carry9; s9 -= carry9 << 21;
carry11 = (s11 + (1<<20)) >> 21; s12 += carry11; s11 -= carry11 << 21;
carry1 = (s1 + (1<<20)) >> 21; s2 += carry1; s1 -= SHL64(carry1,21);
carry3 = (s3 + (1<<20)) >> 21; s4 += carry3; s3 -= SHL64(carry3,21);
carry5 = (s5 + (1<<20)) >> 21; s6 += carry5; s5 -= SHL64(carry5,21);
carry7 = (s7 + (1<<20)) >> 21; s8 += carry7; s7 -= SHL64(carry7,21);
carry9 = (s9 + (1<<20)) >> 21; s10 += carry9; s9 -= SHL64(carry9,21);
carry11 = (s11 + (1<<20)) >> 21; s12 += carry11; s11 -= SHL64(carry11,21);
s0 += s12 * 666643;
s1 += s12 * 470296;
@ -207,18 +207,18 @@ void sc_reduce(unsigned char *s)
s5 -= s12 * 683901;
s12 = 0;
carry0 = s0 >> 21; s1 += carry0; s0 -= carry0 << 21;
carry1 = s1 >> 21; s2 += carry1; s1 -= carry1 << 21;
carry2 = s2 >> 21; s3 += carry2; s2 -= carry2 << 21;
carry3 = s3 >> 21; s4 += carry3; s3 -= carry3 << 21;
carry4 = s4 >> 21; s5 += carry4; s4 -= carry4 << 21;
carry5 = s5 >> 21; s6 += carry5; s5 -= carry5 << 21;
carry6 = s6 >> 21; s7 += carry6; s6 -= carry6 << 21;
carry7 = s7 >> 21; s8 += carry7; s7 -= carry7 << 21;
carry8 = s8 >> 21; s9 += carry8; s8 -= carry8 << 21;
carry9 = s9 >> 21; s10 += carry9; s9 -= carry9 << 21;
carry10 = s10 >> 21; s11 += carry10; s10 -= carry10 << 21;
carry11 = s11 >> 21; s12 += carry11; s11 -= carry11 << 21;
carry0 = s0 >> 21; s1 += carry0; s0 -= SHL64(carry0,21);
carry1 = s1 >> 21; s2 += carry1; s1 -= SHL64(carry1,21);
carry2 = s2 >> 21; s3 += carry2; s2 -= SHL64(carry2,21);
carry3 = s3 >> 21; s4 += carry3; s3 -= SHL64(carry3,21);
carry4 = s4 >> 21; s5 += carry4; s4 -= SHL64(carry4,21);
carry5 = s5 >> 21; s6 += carry5; s5 -= SHL64(carry5,21);
carry6 = s6 >> 21; s7 += carry6; s6 -= SHL64(carry6,21);
carry7 = s7 >> 21; s8 += carry7; s7 -= SHL64(carry7,21);
carry8 = s8 >> 21; s9 += carry8; s8 -= SHL64(carry8,21);
carry9 = s9 >> 21; s10 += carry9; s9 -= SHL64(carry9,21);
carry10 = s10 >> 21; s11 += carry10; s10 -= SHL64(carry10,21);
carry11 = s11 >> 21; s12 += carry11; s11 -= SHL64(carry11,21);
s0 += s12 * 666643;
s1 += s12 * 470296;
@ -228,47 +228,47 @@ void sc_reduce(unsigned char *s)
s5 -= s12 * 683901;
s12 = 0;
carry0 = s0 >> 21; s1 += carry0; s0 -= carry0 << 21;
carry1 = s1 >> 21; s2 += carry1; s1 -= carry1 << 21;
carry2 = s2 >> 21; s3 += carry2; s2 -= carry2 << 21;
carry3 = s3 >> 21; s4 += carry3; s3 -= carry3 << 21;
carry4 = s4 >> 21; s5 += carry4; s4 -= carry4 << 21;
carry5 = s5 >> 21; s6 += carry5; s5 -= carry5 << 21;
carry6 = s6 >> 21; s7 += carry6; s6 -= carry6 << 21;
carry7 = s7 >> 21; s8 += carry7; s7 -= carry7 << 21;
carry8 = s8 >> 21; s9 += carry8; s8 -= carry8 << 21;
carry9 = s9 >> 21; s10 += carry9; s9 -= carry9 << 21;
carry10 = s10 >> 21; s11 += carry10; s10 -= carry10 << 21;
carry0 = s0 >> 21; s1 += carry0; s0 -= SHL64(carry0,21);
carry1 = s1 >> 21; s2 += carry1; s1 -= SHL64(carry1,21);
carry2 = s2 >> 21; s3 += carry2; s2 -= SHL64(carry2,21);
carry3 = s3 >> 21; s4 += carry3; s3 -= SHL64(carry3,21);
carry4 = s4 >> 21; s5 += carry4; s4 -= SHL64(carry4,21);
carry5 = s5 >> 21; s6 += carry5; s5 -= SHL64(carry5,21);
carry6 = s6 >> 21; s7 += carry6; s6 -= SHL64(carry6,21);
carry7 = s7 >> 21; s8 += carry7; s7 -= SHL64(carry7,21);
carry8 = s8 >> 21; s9 += carry8; s8 -= SHL64(carry8,21);
carry9 = s9 >> 21; s10 += carry9; s9 -= SHL64(carry9,21);
carry10 = s10 >> 21; s11 += carry10; s10 -= SHL64(carry10,21);
s[0] = s0 >> 0;
s[1] = s0 >> 8;
s[2] = (s0 >> 16) | (s1 << 5);
s[2] = (s0 >> 16) | SHL64(s1,5);
s[3] = s1 >> 3;
s[4] = s1 >> 11;
s[5] = (s1 >> 19) | (s2 << 2);
s[5] = (s1 >> 19) | SHL64(s2,2);
s[6] = s2 >> 6;
s[7] = (s2 >> 14) | (s3 << 7);
s[7] = (s2 >> 14) | SHL64(s3,7);
s[8] = s3 >> 1;
s[9] = s3 >> 9;
s[10] = (s3 >> 17) | (s4 << 4);
s[10] = (s3 >> 17) | SHL64(s4,4);
s[11] = s4 >> 4;
s[12] = s4 >> 12;
s[13] = (s4 >> 20) | (s5 << 1);
s[13] = (s4 >> 20) | SHL64(s5,1);
s[14] = s5 >> 7;
s[15] = (s5 >> 15) | (s6 << 6);
s[15] = (s5 >> 15) | SHL64(s6,6);
s[16] = s6 >> 2;
s[17] = s6 >> 10;
s[18] = (s6 >> 18) | (s7 << 3);
s[18] = (s6 >> 18) | SHL64(s7,3);
s[19] = s7 >> 5;
s[20] = s7 >> 13;
s[21] = s8 >> 0;
s[22] = s8 >> 8;
s[23] = (s8 >> 16) | (s9 << 5);
s[23] = (s8 >> 16) | SHL64(s9,5);
s[24] = s9 >> 3;
s[25] = s9 >> 11;
s[26] = (s9 >> 19) | (s10 << 2);
s[26] = (s9 >> 19) | SHL64(s10,2);
s[27] = s10 >> 6;
s[28] = (s10 >> 14) | (s11 << 7);
s[28] = (s10 >> 14) | SHL64(s11,7);
s[29] = s11 >> 1;
s[30] = s11 >> 9;
s[31] = s11 >> 17;