76 #define BITS_TO_LIMBS(i)  ( (i) / biL + ( (i) % biL != 0 ) )  argument
77 #define CHARS_TO_LIMBS(i) ( (i) / ciL + ( (i) % ciL != 0 ) )  argument
147     size_t i;  in mbedtls_mpi_shrink()  local
153     for( i = X->n - 1; i > 0; i-- )  in mbedtls_mpi_shrink()
154         if( X->p[i] != 0 )  in mbedtls_mpi_shrink()
156     i++;  in mbedtls_mpi_shrink()
158     if( i < nblimbs )  in mbedtls_mpi_shrink()
159         i = nblimbs;  in mbedtls_mpi_shrink()
161     if( ( p = (mbedtls_mpi_uint*)mbedtls_calloc( i, ciL ) ) == NULL )  in mbedtls_mpi_shrink()
166         memcpy( p, X->p, i * ciL );  in mbedtls_mpi_shrink()
171     X->n = i;  in mbedtls_mpi_shrink()
183     size_t i;  in mbedtls_mpi_copy()  local
194     for( i = Y->n - 1; i > 0; i-- )  in mbedtls_mpi_copy()
195         if( Y->p[i] != 0 )  in mbedtls_mpi_copy()
197     i++;  in mbedtls_mpi_copy()
201     MBEDTLS_MPI_CHK( mbedtls_mpi_grow( X, i ) );  in mbedtls_mpi_copy()
204     memcpy( X->p, Y->p, i * ciL );  in mbedtls_mpi_copy()
231     size_t i;  in mbedtls_mpi_safe_cond_assign()  local
240     for( i = 0; i < Y->n; i++ )  in mbedtls_mpi_safe_cond_assign()
241         X->p[i] = X->p[i] * ( 1 - assign ) + Y->p[i] * assign;  in mbedtls_mpi_safe_cond_assign()
243     for( ; i < X->n; i++ )  in mbedtls_mpi_safe_cond_assign()
244         X->p[i] *= ( 1 - assign );  in mbedtls_mpi_safe_cond_assign()
259     size_t i;  in mbedtls_mpi_safe_cond_swap()  local
276     for( i = 0; i < X->n; i++ )  in mbedtls_mpi_safe_cond_swap()
278         tmp = X->p[i];  in mbedtls_mpi_safe_cond_swap()
279         X->p[i] = X->p[i] * ( 1 - swap ) + Y->p[i] * swap;  in mbedtls_mpi_safe_cond_swap()
280         Y->p[i] = Y->p[i] * ( 1 - swap ) +     tmp * swap;  in mbedtls_mpi_safe_cond_swap()
349     size_t i, j, count = 0;  in mbedtls_mpi_lsb()  local
351     for( i = 0; i < X->n; i++ )  in mbedtls_mpi_lsb()
353             if( ( ( X->p[i] >> j ) & 1 ) != 0 )  in mbedtls_mpi_lsb()
382     size_t i, j;  in mbedtls_mpi_bitlen()  local
387     for( i = X->n - 1; i > 0; i-- )  in mbedtls_mpi_bitlen()
388         if( X->p[i] != 0 )  in mbedtls_mpi_bitlen()
391     j = biL - mbedtls_clz( X->p[i] );  in mbedtls_mpi_bitlen()
393     return( ( i * biL ) + j );  in mbedtls_mpi_bitlen()
427     size_t i, j, slen, n;  in mbedtls_mpi_read_string()  local
448         for( i = slen, j = 0; i > 0; i--, j++ )  in mbedtls_mpi_read_string()
450             if( i == 1 && s[i - 1] == '-' )  in mbedtls_mpi_read_string()
456             MBEDTLS_MPI_CHK( mpi_get_digit( &d, radix, s[i - 1] ) );  in mbedtls_mpi_read_string()
464         for( i = 0; i < slen; i++ )  in mbedtls_mpi_read_string()
466             if( i == 0 && s[i] == '-' )  in mbedtls_mpi_read_string()
472             MBEDTLS_MPI_CHK( mpi_get_digit( &d, radix, s[i] ) );  in mbedtls_mpi_read_string()
554         size_t i, j, k;  in mbedtls_mpi_write_string()  local
556         for( i = X->n, k = 0; i > 0; i-- )  in mbedtls_mpi_write_string()
560                 c = ( X->p[i - 1] >> ( ( j - 1 ) << 3) ) & 0xFF;  in mbedtls_mpi_write_string()
562                 if( c == 0 && k == 0 && ( i + j ) != 2 )  in mbedtls_mpi_write_string()
670     size_t i, j, n;  in mbedtls_mpi_read_binary()  local
679     for( i = buflen, j = 0; i > n; i--, j++ )  in mbedtls_mpi_read_binary()
680         X->p[j / ciL] |= ((mbedtls_mpi_uint) buf[i - 1]) << ((j % ciL) << 3);  in mbedtls_mpi_read_binary()
692     size_t i, j, n;  in mbedtls_mpi_write_binary()  local
701     for( i = buflen - 1, j = 0; n > 0; i--, j++, n-- )  in mbedtls_mpi_write_binary()
702         buf[i] = (unsigned char)( X->p[j / ciL] >> ((j % ciL) << 3) );  in mbedtls_mpi_write_binary()
713     size_t i, v0, t1;  in mbedtls_mpi_shift_l()  local
719     i = mbedtls_mpi_bitlen( X ) + count;  in mbedtls_mpi_shift_l()
721     if( X->n * biL < i )  in mbedtls_mpi_shift_l()
722         MBEDTLS_MPI_CHK( mbedtls_mpi_grow( X, BITS_TO_LIMBS( i ) ) );  in mbedtls_mpi_shift_l()
731         for( i = X->n; i > v0; i-- )  in mbedtls_mpi_shift_l()
732             X->p[i - 1] = X->p[i - v0 - 1];  in mbedtls_mpi_shift_l()
734         for( ; i > 0; i-- )  in mbedtls_mpi_shift_l()
735             X->p[i - 1] = 0;  in mbedtls_mpi_shift_l()
743         for( i = v0; i < X->n; i++ )  in mbedtls_mpi_shift_l()
745             r1 = X->p[i] >> (biL - t1);  in mbedtls_mpi_shift_l()
746             X->p[i] <<= t1;  in mbedtls_mpi_shift_l()
747             X->p[i] |= r0;  in mbedtls_mpi_shift_l()
762     size_t i, v0, v1;  in mbedtls_mpi_shift_r()  local
776         for( i = 0; i < X->n - v0; i++ )  in mbedtls_mpi_shift_r()
777             X->p[i] = X->p[i + v0];  in mbedtls_mpi_shift_r()
779         for( ; i < X->n; i++ )  in mbedtls_mpi_shift_r()
780             X->p[i] = 0;  in mbedtls_mpi_shift_r()
788         for( i = X->n; i > 0; i-- )  in mbedtls_mpi_shift_r()
790             r1 = X->p[i - 1] << (biL - v1);  in mbedtls_mpi_shift_r()
791             X->p[i - 1] >>= v1;  in mbedtls_mpi_shift_r()
792             X->p[i - 1] |= r0;  in mbedtls_mpi_shift_r()
805     size_t i, j;  in mbedtls_mpi_cmp_abs()  local
807     for( i = X->n; i > 0; i-- )  in mbedtls_mpi_cmp_abs()
808         if( X->p[i - 1] != 0 )  in mbedtls_mpi_cmp_abs()
815     if( i == 0 && j == 0 )  in mbedtls_mpi_cmp_abs()
818     if( i > j ) return(  1 );  in mbedtls_mpi_cmp_abs()
819     if( j > i ) return( -1 );  in mbedtls_mpi_cmp_abs()
821     for( ; i > 0; i-- )  in mbedtls_mpi_cmp_abs()
823         if( X->p[i - 1] > Y->p[i - 1] ) return(  1 );  in mbedtls_mpi_cmp_abs()
824         if( X->p[i - 1] < Y->p[i - 1] ) return( -1 );  in mbedtls_mpi_cmp_abs()
835     size_t i, j;  in mbedtls_mpi_cmp_mpi()  local
837     for( i = X->n; i > 0; i-- )  in mbedtls_mpi_cmp_mpi()
838         if( X->p[i - 1] != 0 )  in mbedtls_mpi_cmp_mpi()
845     if( i == 0 && j == 0 )  in mbedtls_mpi_cmp_mpi()
848     if( i > j ) return(  X->s );  in mbedtls_mpi_cmp_mpi()
849     if( j > i ) return( -Y->s );  in mbedtls_mpi_cmp_mpi()
854     for( ; i > 0; i-- )  in mbedtls_mpi_cmp_mpi()
856         if( X->p[i - 1] > Y->p[i - 1] ) return(  X->s );  in mbedtls_mpi_cmp_mpi()
857         if( X->p[i - 1] < Y->p[i - 1] ) return( -X->s );  in mbedtls_mpi_cmp_mpi()
885     size_t i, j;  in mbedtls_mpi_add_abs()  local
912     for( i = 0; i < j; i++, o++, p++ )  in mbedtls_mpi_add_abs()
921         if( i >= X->n )  in mbedtls_mpi_add_abs()
923             MBEDTLS_MPI_CHK( mbedtls_mpi_grow( X, i + 1 ) );  in mbedtls_mpi_add_abs()
924             p = X->p + i;  in mbedtls_mpi_add_abs()
927         *p += c; c = ( *p < c ); i++; p++;  in mbedtls_mpi_add_abs()
940     size_t i;  in mpi_sub_hlp()  local
943     for( i = c = 0; i < n; i++, s++, d++ )  in mpi_sub_hlp()
952         c = z; i++; d++;  in mpi_sub_hlp()
1104 void mpi_mul_hlp( size_t i, mbedtls_mpi_uint *s, mbedtls_mpi_uint *d, mbedtls_mpi_uint b )  in mpi_mul_hlp()  argument
1109     for( ; i >= 8; i -= 8 )  in mpi_mul_hlp()
1116     for( ; i > 0; i-- )  in mpi_mul_hlp()
1123     for( ; i >= 16; i -= 16 )  in mpi_mul_hlp()
1138     for( ; i >= 8; i -= 8 )  in mpi_mul_hlp()
1149     for( ; i > 0; i-- )  in mpi_mul_hlp()
1171     size_t i, j;  in mbedtls_mpi_mul_mpi()  local
1179     for( i = A->n; i > 0; i-- )  in mbedtls_mpi_mul_mpi()
1180         if( A->p[i - 1] != 0 )  in mbedtls_mpi_mul_mpi()
1187     MBEDTLS_MPI_CHK( mbedtls_mpi_grow( X, i + j ) );  in mbedtls_mpi_mul_mpi()
1190     for( i++; j > 0; j-- )  in mbedtls_mpi_mul_mpi()
1191         mpi_mul_hlp( i - 1, A->p, X->p + j - 1, B->p[j - 1] );  in mbedtls_mpi_mul_mpi()
1320     size_t i, n, t, k;  in mbedtls_mpi_div_mpi()  local
1365     for( i = n; i > t ; i-- )  in mbedtls_mpi_div_mpi()
1367         if( X.p[i] >= Y.p[t] )  in mbedtls_mpi_div_mpi()
1368             Z.p[i - t - 1] = ~0;  in mbedtls_mpi_div_mpi()
1371             Z.p[i - t - 1] = mbedtls_int_div_int( X.p[i], X.p[i - 1],  in mbedtls_mpi_div_mpi()
1375         Z.p[i - t - 1]++;  in mbedtls_mpi_div_mpi()
1378             Z.p[i - t - 1]--;  in mbedtls_mpi_div_mpi()
1383             MBEDTLS_MPI_CHK( mbedtls_mpi_mul_int( &T1, &T1, Z.p[i - t - 1] ) );  in mbedtls_mpi_div_mpi()
1386             T2.p[0] = ( i < 2 ) ? 0 : X.p[i - 2];  in mbedtls_mpi_div_mpi()
1387             T2.p[1] = ( i < 1 ) ? 0 : X.p[i - 1];  in mbedtls_mpi_div_mpi()
1388             T2.p[2] = X.p[i];  in mbedtls_mpi_div_mpi()
1392         MBEDTLS_MPI_CHK( mbedtls_mpi_mul_int( &T1, &Y, Z.p[i - t - 1] ) );  in mbedtls_mpi_div_mpi()
1393         MBEDTLS_MPI_CHK( mbedtls_mpi_shift_l( &T1,  biL * ( i - t - 1 ) ) );  in mbedtls_mpi_div_mpi()
1399             MBEDTLS_MPI_CHK( mbedtls_mpi_shift_l( &T1, biL * ( i - t - 1 ) ) );  in mbedtls_mpi_div_mpi()
1401             Z.p[i - t - 1]--;  in mbedtls_mpi_div_mpi()
1473     size_t i;  in mbedtls_mpi_mod_int()  local
1500     for( i = A->n, y = 0; i > 0; i-- )  in mbedtls_mpi_mod_int()
1502         x  = A->p[i - 1];  in mbedtls_mpi_mod_int()
1531     unsigned int i;  in mpi_montg_init()  local
1536     for( i = biL; i >= 8; i /= 2 )  in mpi_montg_init()
1548     size_t i, n, m;  in mpi_montmul()  local
1560     for( i = 0; i < n; i++ )  in mpi_montmul()
1565         u0 = A->p[i];  in mpi_montmul()
1606     size_t i, j, nblimbs;  in mbedtls_mpi_exp_mod()  local
1626     i = mbedtls_mpi_bitlen( E );  in mbedtls_mpi_exp_mod()
1628     wsize = ( i > 671 ) ? 6 : ( i > 239 ) ? 5 :  in mbedtls_mpi_exp_mod()
1629             ( i >  79 ) ? 4 : ( i >  23 ) ? 3 : 1;  in mbedtls_mpi_exp_mod()
1691         for( i = 0; i < wsize - 1; i++ )  in mbedtls_mpi_exp_mod()
1697         for( i = j + 1; i < ( one << wsize ); i++ )  in mbedtls_mpi_exp_mod()
1699             MBEDTLS_MPI_CHK( mbedtls_mpi_grow( &W[i], N->n + 1 ) );  in mbedtls_mpi_exp_mod()
1700             MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &W[i], &W[i - 1] ) );  in mbedtls_mpi_exp_mod()
1702             MBEDTLS_MPI_CHK( mpi_montmul( &W[i], &W[1], N, mm, &T ) );  in mbedtls_mpi_exp_mod()
1756             for( i = 0; i < wsize; i++ )  in mbedtls_mpi_exp_mod()
1773     for( i = 0; i < nbits; i++ )  in mbedtls_mpi_exp_mod()
1796     for( i = ( one << ( wsize - 1 ) ); i < ( one << wsize ); i++ )  in mbedtls_mpi_exp_mod()
1797         mbedtls_mpi_free( &W[i] );  in mbedtls_mpi_exp_mod()
2017     size_t i;  in mpi_check_small_factors()  local
2023     for( i = 0; small_prime[i] > 0; i++ )  in mpi_check_small_factors()
2025         if( mbedtls_mpi_cmp_int( X, small_prime[i] ) <= 0 )  in mpi_check_small_factors()
2028         MBEDTLS_MPI_CHK( mbedtls_mpi_mod_int( &r, X, small_prime[i] ) );  in mpi_check_small_factors()
2046     size_t i, j, k, n, s;  in mpi_miller_rabin()  local
2061     i = mbedtls_mpi_bitlen( X );  in mpi_miller_rabin()
2065     n = ( ( i >= 1300 ) ?  2 : ( i >=  850 ) ?  3 :  in mpi_miller_rabin()
2066           ( i >=  650 ) ?  4 : ( i >=  350 ) ?  8 :  in mpi_miller_rabin()
2067           ( i >=  250 ) ? 12 : ( i >=  150 ) ? 18 : 27 );  in mpi_miller_rabin()
2069     for( i = 0; i < n; i++ )  in mpi_miller_rabin()
2284     int ret, i;  in mbedtls_mpi_self_test()  local
2406     for( i = 0; i < GCD_PAIR_COUNT; i++ )  in mbedtls_mpi_self_test()
2408         MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &X, gcd_pairs[i][0] ) );  in mbedtls_mpi_self_test()
2409         MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &Y, gcd_pairs[i][1] ) );  in mbedtls_mpi_self_test()
2413         if( mbedtls_mpi_cmp_int( &A, gcd_pairs[i][2] ) != 0 )  in mbedtls_mpi_self_test()
2416                 mbedtls_printf( "failed at %d\n", i );  in mbedtls_mpi_self_test()