diff options
author | Parménides GV <parmegv@sdf.org> | 2014-06-11 11:56:59 +0200 |
---|---|---|
committer | Parménides GV <parmegv@sdf.org> | 2014-06-11 19:50:54 +0200 |
commit | 3e121542d8b7ab5201c47bbd3ba5611a23c54759 (patch) | |
tree | a6035639e7baa88dd122d0d4e85791726606389a /app/openssl/crypto/bn/bn_nist.c | |
parent | ac69881af1b7bfcdd185989f3e434556b1d62fed (diff) |
Correctly connects to millipede.
Location keyword on android.cfg isn't supported, EIP corresponding code
has been commented out. I think we should support it in ics-openvpn, so
that we can show the location instead of the server name.
I've updated all opensssl, openvpn, etc. subprojects from rev 813 of
ics-openvpn, and jni too.
Diffstat (limited to 'app/openssl/crypto/bn/bn_nist.c')
-rw-r--r-- | app/openssl/crypto/bn/bn_nist.c | 387 |
1 files changed, 326 insertions, 61 deletions
diff --git a/app/openssl/crypto/bn/bn_nist.c b/app/openssl/crypto/bn/bn_nist.c index c6de0326..e22968d4 100644 --- a/app/openssl/crypto/bn/bn_nist.c +++ b/app/openssl/crypto/bn/bn_nist.c @@ -286,26 +286,25 @@ const BIGNUM *BN_get0_nist_prime_521(void) } -static void nist_cp_bn_0(BN_ULONG *buf, BN_ULONG *a, int top, int max) +static void nist_cp_bn_0(BN_ULONG *dst, const BN_ULONG *src, int top, int max) { int i; - BN_ULONG *_tmp1 = (buf), *_tmp2 = (a); #ifdef BN_DEBUG OPENSSL_assert(top <= max); #endif - for (i = (top); i != 0; i--) - *_tmp1++ = *_tmp2++; - for (i = (max) - (top); i != 0; i--) - *_tmp1++ = (BN_ULONG) 0; + for (i = 0; i < top; i++) + dst[i] = src[i]; + for (; i < max; i++) + dst[i] = 0; } -static void nist_cp_bn(BN_ULONG *buf, BN_ULONG *a, int top) +static void nist_cp_bn(BN_ULONG *dst, const BN_ULONG *src, int top) { int i; - BN_ULONG *_tmp1 = (buf), *_tmp2 = (a); - for (i = (top); i != 0; i--) - *_tmp1++ = *_tmp2++; + + for (i = 0; i < top; i++) + dst[i] = src[i]; } #if BN_BITS2 == 64 @@ -319,6 +318,13 @@ static void nist_cp_bn(BN_ULONG *buf, BN_ULONG *a, int top) :(to[(n)/2] =((m)&1)?(from[(m)/2]>>32):(from[(m)/2]&BN_MASK2l))) #define bn_32_set_0(to, n) (((n)&1)?(to[(n)/2]&=BN_MASK2l):(to[(n)/2]=0)); #define bn_cp_32(to,n,from,m) ((m)>=0)?bn_cp_32_naked(to,n,from,m):bn_32_set_0(to,n) +# if defined(L_ENDIAN) +# if defined(__arch64__) +# define NIST_INT64 long +# else +# define NIST_INT64 long long +# endif +# endif #else #define bn_cp_64(to, n, from, m) \ { \ @@ -330,13 +336,15 @@ static void nist_cp_bn(BN_ULONG *buf, BN_ULONG *a, int top) bn_32_set_0(to, (n)*2); \ bn_32_set_0(to, (n)*2+1); \ } -#if BN_BITS2 == 32 #define bn_cp_32(to, n, from, m) (to)[n] = (m>=0)?((from)[m]):0; #define bn_32_set_0(to, n) (to)[n] = (BN_ULONG)0; -#endif +# if defined(_WIN32) && !defined(__GNUC__) +# define NIST_INT64 __int64 +# elif defined(BN_LLONG) +# define NIST_INT64 long long +# endif #endif /* BN_BITS2 != 64 */ - #define nist_set_192(to, from, a1, a2, a3) \ { \ bn_cp_64(to, 0, from, (a3) - 3) \ @@ -350,9 +358,11 @@ int BN_nist_mod_192(BIGNUM *r, const BIGNUM *a, const BIGNUM *field, int top = a->top, i; int carry; register BN_ULONG *r_d, *a_d = a->d; - BN_ULONG t_d[BN_NIST_192_TOP], - buf[BN_NIST_192_TOP], - c_d[BN_NIST_192_TOP], + union { + BN_ULONG bn[BN_NIST_192_TOP]; + unsigned int ui[BN_NIST_192_TOP*sizeof(BN_ULONG)/sizeof(unsigned int)]; + } buf; + BN_ULONG c_d[BN_NIST_192_TOP], *res; PTR_SIZE_INT mask; static const BIGNUM _bignum_nist_p_192_sqr = { @@ -385,15 +395,48 @@ int BN_nist_mod_192(BIGNUM *r, const BIGNUM *a, const BIGNUM *field, else r_d = a_d; - nist_cp_bn_0(buf, a_d + BN_NIST_192_TOP, top - BN_NIST_192_TOP, BN_NIST_192_TOP); + nist_cp_bn_0(buf.bn, a_d + BN_NIST_192_TOP, top - BN_NIST_192_TOP, BN_NIST_192_TOP); + +#if defined(NIST_INT64) + { + NIST_INT64 acc; /* accumulator */ + unsigned int *rp=(unsigned int *)r_d; + const unsigned int *bp=(const unsigned int *)buf.ui; + + acc = rp[0]; acc += bp[3*2-6]; + acc += bp[5*2-6]; rp[0] = (unsigned int)acc; acc >>= 32; + + acc += rp[1]; acc += bp[3*2-5]; + acc += bp[5*2-5]; rp[1] = (unsigned int)acc; acc >>= 32; + + acc += rp[2]; acc += bp[3*2-6]; + acc += bp[4*2-6]; + acc += bp[5*2-6]; rp[2] = (unsigned int)acc; acc >>= 32; + + acc += rp[3]; acc += bp[3*2-5]; + acc += bp[4*2-5]; + acc += bp[5*2-5]; rp[3] = (unsigned int)acc; acc >>= 32; + + acc += rp[4]; acc += bp[4*2-6]; + acc += bp[5*2-6]; rp[4] = (unsigned int)acc; acc >>= 32; + + acc += rp[5]; acc += bp[4*2-5]; + acc += bp[5*2-5]; rp[5] = (unsigned int)acc; + + carry = (int)(acc>>32); + } +#else + { + BN_ULONG t_d[BN_NIST_192_TOP]; - nist_set_192(t_d, buf, 0, 3, 3); + nist_set_192(t_d, buf.bn, 0, 3, 3); carry = (int)bn_add_words(r_d, r_d, t_d, BN_NIST_192_TOP); - nist_set_192(t_d, buf, 4, 4, 0); + nist_set_192(t_d, buf.bn, 4, 4, 0); carry += (int)bn_add_words(r_d, r_d, t_d, BN_NIST_192_TOP); - nist_set_192(t_d, buf, 5, 5, 5) + nist_set_192(t_d, buf.bn, 5, 5, 5) carry += (int)bn_add_words(r_d, r_d, t_d, BN_NIST_192_TOP); - + } +#endif if (carry > 0) carry = (int)bn_sub_words(r_d,r_d,_nist_p_192[carry-1],BN_NIST_192_TOP); else @@ -407,8 +450,9 @@ int BN_nist_mod_192(BIGNUM *r, const BIGNUM *a, const BIGNUM *field, */ mask = 0-(PTR_SIZE_INT)bn_sub_words(c_d,r_d,_nist_p_192[0],BN_NIST_192_TOP); mask &= 0-(PTR_SIZE_INT)carry; + res = c_d; res = (BN_ULONG *) - (((PTR_SIZE_INT)c_d&~mask) | ((PTR_SIZE_INT)r_d&mask)); + (((PTR_SIZE_INT)res&~mask) | ((PTR_SIZE_INT)r_d&mask)); nist_cp_bn(r_d, res, BN_NIST_192_TOP); r->top = BN_NIST_192_TOP; bn_correct_top(r); @@ -435,9 +479,11 @@ int BN_nist_mod_224(BIGNUM *r, const BIGNUM *a, const BIGNUM *field, int top = a->top, i; int carry; BN_ULONG *r_d, *a_d = a->d; - BN_ULONG t_d[BN_NIST_224_TOP], - buf[BN_NIST_224_TOP], - c_d[BN_NIST_224_TOP], + union { + BN_ULONG bn[BN_NIST_224_TOP]; + unsigned int ui[BN_NIST_224_TOP*sizeof(BN_ULONG)/sizeof(unsigned int)]; + } buf; + BN_ULONG c_d[BN_NIST_224_TOP], *res; PTR_SIZE_INT mask; union { bn_addsub_f f; PTR_SIZE_INT p; } u; @@ -474,26 +520,68 @@ int BN_nist_mod_224(BIGNUM *r, const BIGNUM *a, const BIGNUM *field, #if BN_BITS2==64 /* copy upper 256 bits of 448 bit number ... */ - nist_cp_bn_0(t_d, a_d + (BN_NIST_224_TOP-1), top - (BN_NIST_224_TOP-1), BN_NIST_224_TOP); + nist_cp_bn_0(c_d, a_d + (BN_NIST_224_TOP-1), top - (BN_NIST_224_TOP-1), BN_NIST_224_TOP); /* ... and right shift by 32 to obtain upper 224 bits */ - nist_set_224(buf, t_d, 14, 13, 12, 11, 10, 9, 8); + nist_set_224(buf.bn, c_d, 14, 13, 12, 11, 10, 9, 8); /* truncate lower part to 224 bits too */ r_d[BN_NIST_224_TOP-1] &= BN_MASK2l; #else - nist_cp_bn_0(buf, a_d + BN_NIST_224_TOP, top - BN_NIST_224_TOP, BN_NIST_224_TOP); + nist_cp_bn_0(buf.bn, a_d + BN_NIST_224_TOP, top - BN_NIST_224_TOP, BN_NIST_224_TOP); #endif - nist_set_224(t_d, buf, 10, 9, 8, 7, 0, 0, 0); + +#if defined(NIST_INT64) && BN_BITS2!=64 + { + NIST_INT64 acc; /* accumulator */ + unsigned int *rp=(unsigned int *)r_d; + const unsigned int *bp=(const unsigned int *)buf.ui; + + acc = rp[0]; acc -= bp[7-7]; + acc -= bp[11-7]; rp[0] = (unsigned int)acc; acc >>= 32; + + acc += rp[1]; acc -= bp[8-7]; + acc -= bp[12-7]; rp[1] = (unsigned int)acc; acc >>= 32; + + acc += rp[2]; acc -= bp[9-7]; + acc -= bp[13-7]; rp[2] = (unsigned int)acc; acc >>= 32; + + acc += rp[3]; acc += bp[7-7]; + acc += bp[11-7]; + acc -= bp[10-7]; rp[3] = (unsigned int)acc; acc>>= 32; + + acc += rp[4]; acc += bp[8-7]; + acc += bp[12-7]; + acc -= bp[11-7]; rp[4] = (unsigned int)acc; acc >>= 32; + + acc += rp[5]; acc += bp[9-7]; + acc += bp[13-7]; + acc -= bp[12-7]; rp[5] = (unsigned int)acc; acc >>= 32; + + acc += rp[6]; acc += bp[10-7]; + acc -= bp[13-7]; rp[6] = (unsigned int)acc; + + carry = (int)(acc>>32); +# if BN_BITS2==64 + rp[7] = carry; +# endif + } +#else + { + BN_ULONG t_d[BN_NIST_224_TOP]; + + nist_set_224(t_d, buf.bn, 10, 9, 8, 7, 0, 0, 0); carry = (int)bn_add_words(r_d, r_d, t_d, BN_NIST_224_TOP); - nist_set_224(t_d, buf, 0, 13, 12, 11, 0, 0, 0); + nist_set_224(t_d, buf.bn, 0, 13, 12, 11, 0, 0, 0); carry += (int)bn_add_words(r_d, r_d, t_d, BN_NIST_224_TOP); - nist_set_224(t_d, buf, 13, 12, 11, 10, 9, 8, 7); + nist_set_224(t_d, buf.bn, 13, 12, 11, 10, 9, 8, 7); carry -= (int)bn_sub_words(r_d, r_d, t_d, BN_NIST_224_TOP); - nist_set_224(t_d, buf, 0, 0, 0, 0, 13, 12, 11); + nist_set_224(t_d, buf.bn, 0, 0, 0, 0, 13, 12, 11); carry -= (int)bn_sub_words(r_d, r_d, t_d, BN_NIST_224_TOP); #if BN_BITS2==64 carry = (int)(r_d[BN_NIST_224_TOP-1]>>32); #endif + } +#endif u.f = bn_sub_words; if (carry > 0) { @@ -521,7 +609,8 @@ int BN_nist_mod_224(BIGNUM *r, const BIGNUM *a, const BIGNUM *field, /* otherwise it's effectively same as in BN_nist_mod_192... */ mask = 0-(PTR_SIZE_INT)(*u.f)(c_d,r_d,_nist_p_224[0],BN_NIST_224_TOP); mask &= 0-(PTR_SIZE_INT)carry; - res = (BN_ULONG *)(((PTR_SIZE_INT)c_d&~mask) | + res = c_d; + res = (BN_ULONG *)(((PTR_SIZE_INT)res&~mask) | ((PTR_SIZE_INT)r_d&mask)); nist_cp_bn(r_d, res, BN_NIST_224_TOP); r->top = BN_NIST_224_TOP; @@ -548,9 +637,11 @@ int BN_nist_mod_256(BIGNUM *r, const BIGNUM *a, const BIGNUM *field, int i, top = a->top; int carry = 0; register BN_ULONG *a_d = a->d, *r_d; - BN_ULONG t_d[BN_NIST_256_TOP], - buf[BN_NIST_256_TOP], - c_d[BN_NIST_256_TOP], + union { + BN_ULONG bn[BN_NIST_256_TOP]; + unsigned int ui[BN_NIST_256_TOP*sizeof(BN_ULONG)/sizeof(unsigned int)]; + } buf; + BN_ULONG c_d[BN_NIST_256_TOP], *res; PTR_SIZE_INT mask; union { bn_addsub_f f; PTR_SIZE_INT p; } u; @@ -584,12 +675,87 @@ int BN_nist_mod_256(BIGNUM *r, const BIGNUM *a, const BIGNUM *field, else r_d = a_d; - nist_cp_bn_0(buf, a_d + BN_NIST_256_TOP, top - BN_NIST_256_TOP, BN_NIST_256_TOP); + nist_cp_bn_0(buf.bn, a_d + BN_NIST_256_TOP, top - BN_NIST_256_TOP, BN_NIST_256_TOP); + +#if defined(NIST_INT64) + { + NIST_INT64 acc; /* accumulator */ + unsigned int *rp=(unsigned int *)r_d; + const unsigned int *bp=(const unsigned int *)buf.ui; + + acc = rp[0]; acc += bp[8-8]; + acc += bp[9-8]; + acc -= bp[11-8]; + acc -= bp[12-8]; + acc -= bp[13-8]; + acc -= bp[14-8]; rp[0] = (unsigned int)acc; acc >>= 32; + + acc += rp[1]; acc += bp[9-8]; + acc += bp[10-8]; + acc -= bp[12-8]; + acc -= bp[13-8]; + acc -= bp[14-8]; + acc -= bp[15-8]; rp[1] = (unsigned int)acc; acc >>= 32; + + acc += rp[2]; acc += bp[10-8]; + acc += bp[11-8]; + acc -= bp[13-8]; + acc -= bp[14-8]; + acc -= bp[15-8]; rp[2] = (unsigned int)acc; acc >>= 32; + + acc += rp[3]; acc += bp[11-8]; + acc += bp[11-8]; + acc += bp[12-8]; + acc += bp[12-8]; + acc += bp[13-8]; + acc -= bp[15-8]; + acc -= bp[8-8]; + acc -= bp[9-8]; rp[3] = (unsigned int)acc; acc >>= 32; + + acc += rp[4]; acc += bp[12-8]; + acc += bp[12-8]; + acc += bp[13-8]; + acc += bp[13-8]; + acc += bp[14-8]; + acc -= bp[9-8]; + acc -= bp[10-8]; rp[4] = (unsigned int)acc; acc >>= 32; + + acc += rp[5]; acc += bp[13-8]; + acc += bp[13-8]; + acc += bp[14-8]; + acc += bp[14-8]; + acc += bp[15-8]; + acc -= bp[10-8]; + acc -= bp[11-8]; rp[5] = (unsigned int)acc; acc >>= 32; + + acc += rp[6]; acc += bp[14-8]; + acc += bp[14-8]; + acc += bp[15-8]; + acc += bp[15-8]; + acc += bp[14-8]; + acc += bp[13-8]; + acc -= bp[8-8]; + acc -= bp[9-8]; rp[6] = (unsigned int)acc; acc >>= 32; + + acc += rp[7]; acc += bp[15-8]; + acc += bp[15-8]; + acc += bp[15-8]; + acc += bp[8 -8]; + acc -= bp[10-8]; + acc -= bp[11-8]; + acc -= bp[12-8]; + acc -= bp[13-8]; rp[7] = (unsigned int)acc; + + carry = (int)(acc>>32); + } +#else + { + BN_ULONG t_d[BN_NIST_256_TOP]; /*S1*/ - nist_set_256(t_d, buf, 15, 14, 13, 12, 11, 0, 0, 0); + nist_set_256(t_d, buf.bn, 15, 14, 13, 12, 11, 0, 0, 0); /*S2*/ - nist_set_256(c_d, buf, 0, 15, 14, 13, 12, 0, 0, 0); + nist_set_256(c_d, buf.bn, 0, 15, 14, 13, 12, 0, 0, 0); carry = (int)bn_add_words(t_d, t_d, c_d, BN_NIST_256_TOP); /* left shift */ { @@ -607,24 +773,26 @@ int BN_nist_mod_256(BIGNUM *r, const BIGNUM *a, const BIGNUM *field, } carry += (int)bn_add_words(r_d, r_d, t_d, BN_NIST_256_TOP); /*S3*/ - nist_set_256(t_d, buf, 15, 14, 0, 0, 0, 10, 9, 8); + nist_set_256(t_d, buf.bn, 15, 14, 0, 0, 0, 10, 9, 8); carry += (int)bn_add_words(r_d, r_d, t_d, BN_NIST_256_TOP); /*S4*/ - nist_set_256(t_d, buf, 8, 13, 15, 14, 13, 11, 10, 9); + nist_set_256(t_d, buf.bn, 8, 13, 15, 14, 13, 11, 10, 9); carry += (int)bn_add_words(r_d, r_d, t_d, BN_NIST_256_TOP); /*D1*/ - nist_set_256(t_d, buf, 10, 8, 0, 0, 0, 13, 12, 11); + nist_set_256(t_d, buf.bn, 10, 8, 0, 0, 0, 13, 12, 11); carry -= (int)bn_sub_words(r_d, r_d, t_d, BN_NIST_256_TOP); /*D2*/ - nist_set_256(t_d, buf, 11, 9, 0, 0, 15, 14, 13, 12); + nist_set_256(t_d, buf.bn, 11, 9, 0, 0, 15, 14, 13, 12); carry -= (int)bn_sub_words(r_d, r_d, t_d, BN_NIST_256_TOP); /*D3*/ - nist_set_256(t_d, buf, 12, 0, 10, 9, 8, 15, 14, 13); + nist_set_256(t_d, buf.bn, 12, 0, 10, 9, 8, 15, 14, 13); carry -= (int)bn_sub_words(r_d, r_d, t_d, BN_NIST_256_TOP); /*D4*/ - nist_set_256(t_d, buf, 13, 0, 11, 10, 9, 0, 15, 14); + nist_set_256(t_d, buf.bn, 13, 0, 11, 10, 9, 0, 15, 14); carry -= (int)bn_sub_words(r_d, r_d, t_d, BN_NIST_256_TOP); + } +#endif /* see BN_nist_mod_224 for explanation */ u.f = bn_sub_words; if (carry > 0) @@ -641,7 +809,8 @@ int BN_nist_mod_256(BIGNUM *r, const BIGNUM *a, const BIGNUM *field, mask = 0-(PTR_SIZE_INT)(*u.f)(c_d,r_d,_nist_p_256[0],BN_NIST_256_TOP); mask &= 0-(PTR_SIZE_INT)carry; - res = (BN_ULONG *)(((PTR_SIZE_INT)c_d&~mask) | + res = c_d; + res = (BN_ULONG *)(((PTR_SIZE_INT)res&~mask) | ((PTR_SIZE_INT)r_d&mask)); nist_cp_bn(r_d, res, BN_NIST_256_TOP); r->top = BN_NIST_256_TOP; @@ -672,9 +841,11 @@ int BN_nist_mod_384(BIGNUM *r, const BIGNUM *a, const BIGNUM *field, int i, top = a->top; int carry = 0; register BN_ULONG *r_d, *a_d = a->d; - BN_ULONG t_d[BN_NIST_384_TOP], - buf[BN_NIST_384_TOP], - c_d[BN_NIST_384_TOP], + union { + BN_ULONG bn[BN_NIST_384_TOP]; + unsigned int ui[BN_NIST_384_TOP*sizeof(BN_ULONG)/sizeof(unsigned int)]; + } buf; + BN_ULONG c_d[BN_NIST_384_TOP], *res; PTR_SIZE_INT mask; union { bn_addsub_f f; PTR_SIZE_INT p; } u; @@ -709,10 +880,100 @@ int BN_nist_mod_384(BIGNUM *r, const BIGNUM *a, const BIGNUM *field, else r_d = a_d; - nist_cp_bn_0(buf, a_d + BN_NIST_384_TOP, top - BN_NIST_384_TOP, BN_NIST_384_TOP); + nist_cp_bn_0(buf.bn, a_d + BN_NIST_384_TOP, top - BN_NIST_384_TOP, BN_NIST_384_TOP); + +#if defined(NIST_INT64) + { + NIST_INT64 acc; /* accumulator */ + unsigned int *rp=(unsigned int *)r_d; + const unsigned int *bp=(const unsigned int *)buf.ui; + + acc = rp[0]; acc += bp[12-12]; + acc += bp[21-12]; + acc += bp[20-12]; + acc -= bp[23-12]; rp[0] = (unsigned int)acc; acc >>= 32; + + acc += rp[1]; acc += bp[13-12]; + acc += bp[22-12]; + acc += bp[23-12]; + acc -= bp[12-12]; + acc -= bp[20-12]; rp[1] = (unsigned int)acc; acc >>= 32; + + acc += rp[2]; acc += bp[14-12]; + acc += bp[23-12]; + acc -= bp[13-12]; + acc -= bp[21-12]; rp[2] = (unsigned int)acc; acc >>= 32; + + acc += rp[3]; acc += bp[15-12]; + acc += bp[12-12]; + acc += bp[20-12]; + acc += bp[21-12]; + acc -= bp[14-12]; + acc -= bp[22-12]; + acc -= bp[23-12]; rp[3] = (unsigned int)acc; acc >>= 32; + + acc += rp[4]; acc += bp[21-12]; + acc += bp[21-12]; + acc += bp[16-12]; + acc += bp[13-12]; + acc += bp[12-12]; + acc += bp[20-12]; + acc += bp[22-12]; + acc -= bp[15-12]; + acc -= bp[23-12]; + acc -= bp[23-12]; rp[4] = (unsigned int)acc; acc >>= 32; + + acc += rp[5]; acc += bp[22-12]; + acc += bp[22-12]; + acc += bp[17-12]; + acc += bp[14-12]; + acc += bp[13-12]; + acc += bp[21-12]; + acc += bp[23-12]; + acc -= bp[16-12]; rp[5] = (unsigned int)acc; acc >>= 32; + + acc += rp[6]; acc += bp[23-12]; + acc += bp[23-12]; + acc += bp[18-12]; + acc += bp[15-12]; + acc += bp[14-12]; + acc += bp[22-12]; + acc -= bp[17-12]; rp[6] = (unsigned int)acc; acc >>= 32; + + acc += rp[7]; acc += bp[19-12]; + acc += bp[16-12]; + acc += bp[15-12]; + acc += bp[23-12]; + acc -= bp[18-12]; rp[7] = (unsigned int)acc; acc >>= 32; + + acc += rp[8]; acc += bp[20-12]; + acc += bp[17-12]; + acc += bp[16-12]; + acc -= bp[19-12]; rp[8] = (unsigned int)acc; acc >>= 32; + + acc += rp[9]; acc += bp[21-12]; + acc += bp[18-12]; + acc += bp[17-12]; + acc -= bp[20-12]; rp[9] = (unsigned int)acc; acc >>= 32; + + acc += rp[10]; acc += bp[22-12]; + acc += bp[19-12]; + acc += bp[18-12]; + acc -= bp[21-12]; rp[10] = (unsigned int)acc; acc >>= 32; + + acc += rp[11]; acc += bp[23-12]; + acc += bp[20-12]; + acc += bp[19-12]; + acc -= bp[22-12]; rp[11] = (unsigned int)acc; + + carry = (int)(acc>>32); + } +#else + { + BN_ULONG t_d[BN_NIST_384_TOP]; /*S1*/ - nist_set_256(t_d, buf, 0, 0, 0, 0, 0, 23-4, 22-4, 21-4); + nist_set_256(t_d, buf.bn, 0, 0, 0, 0, 0, 23-4, 22-4, 21-4); /* left shift */ { register BN_ULONG *ap,t,c; @@ -729,29 +990,31 @@ int BN_nist_mod_384(BIGNUM *r, const BIGNUM *a, const BIGNUM *field, carry = (int)bn_add_words(r_d+(128/BN_BITS2), r_d+(128/BN_BITS2), t_d, BN_NIST_256_TOP); /*S2 */ - carry += (int)bn_add_words(r_d, r_d, buf, BN_NIST_384_TOP); + carry += (int)bn_add_words(r_d, r_d, buf.bn, BN_NIST_384_TOP); /*S3*/ - nist_set_384(t_d,buf,20,19,18,17,16,15,14,13,12,23,22,21); + nist_set_384(t_d,buf.bn,20,19,18,17,16,15,14,13,12,23,22,21); carry += (int)bn_add_words(r_d, r_d, t_d, BN_NIST_384_TOP); /*S4*/ - nist_set_384(t_d,buf,19,18,17,16,15,14,13,12,20,0,23,0); + nist_set_384(t_d,buf.bn,19,18,17,16,15,14,13,12,20,0,23,0); carry += (int)bn_add_words(r_d, r_d, t_d, BN_NIST_384_TOP); /*S5*/ - nist_set_384(t_d, buf,0,0,0,0,23,22,21,20,0,0,0,0); + nist_set_384(t_d, buf.bn,0,0,0,0,23,22,21,20,0,0,0,0); carry += (int)bn_add_words(r_d, r_d, t_d, BN_NIST_384_TOP); /*S6*/ - nist_set_384(t_d,buf,0,0,0,0,0,0,23,22,21,0,0,20); + nist_set_384(t_d,buf.bn,0,0,0,0,0,0,23,22,21,0,0,20); carry += (int)bn_add_words(r_d, r_d, t_d, BN_NIST_384_TOP); /*D1*/ - nist_set_384(t_d,buf,22,21,20,19,18,17,16,15,14,13,12,23); + nist_set_384(t_d,buf.bn,22,21,20,19,18,17,16,15,14,13,12,23); carry -= (int)bn_sub_words(r_d, r_d, t_d, BN_NIST_384_TOP); /*D2*/ - nist_set_384(t_d,buf,0,0,0,0,0,0,0,23,22,21,20,0); + nist_set_384(t_d,buf.bn,0,0,0,0,0,0,0,23,22,21,20,0); carry -= (int)bn_sub_words(r_d, r_d, t_d, BN_NIST_384_TOP); /*D3*/ - nist_set_384(t_d,buf,0,0,0,0,0,0,0,23,23,0,0,0); + nist_set_384(t_d,buf.bn,0,0,0,0,0,0,0,23,23,0,0,0); carry -= (int)bn_sub_words(r_d, r_d, t_d, BN_NIST_384_TOP); + } +#endif /* see BN_nist_mod_224 for explanation */ u.f = bn_sub_words; if (carry > 0) @@ -768,7 +1031,8 @@ int BN_nist_mod_384(BIGNUM *r, const BIGNUM *a, const BIGNUM *field, mask = 0-(PTR_SIZE_INT)(*u.f)(c_d,r_d,_nist_p_384[0],BN_NIST_384_TOP); mask &= 0-(PTR_SIZE_INT)carry; - res = (BN_ULONG *)(((PTR_SIZE_INT)c_d&~mask) | + res = c_d; + res = (BN_ULONG *)(((PTR_SIZE_INT)res&~mask) | ((PTR_SIZE_INT)r_d&mask)); nist_cp_bn(r_d, res, BN_NIST_384_TOP); r->top = BN_NIST_384_TOP; @@ -834,7 +1098,8 @@ int BN_nist_mod_521(BIGNUM *r, const BIGNUM *a, const BIGNUM *field, bn_add_words(r_d,r_d,t_d,BN_NIST_521_TOP); mask = 0-(PTR_SIZE_INT)bn_sub_words(t_d,r_d,_nist_p_521,BN_NIST_521_TOP); - res = (BN_ULONG *)(((PTR_SIZE_INT)t_d&~mask) | + res = t_d; + res = (BN_ULONG *)(((PTR_SIZE_INT)res&~mask) | ((PTR_SIZE_INT)r_d&mask)); nist_cp_bn(r_d,res,BN_NIST_521_TOP); r->top = BN_NIST_521_TOP; |