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Diffstat (limited to '')
| -rw-r--r-- | mpi/mpi-internal.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/mpi/mpi-internal.h b/mpi/mpi-internal.h index 93ed688ae..f084c7e8a 100644 --- a/mpi/mpi-internal.h +++ b/mpi/mpi-internal.h @@ -32,6 +32,21 @@ #include "mpi.h" +/* If KARATSUBA_THRESHOLD is not already defined, define it to a + * value which is good on most machines. */ + +/* tested 4, 16, 32 and 64, where 16 gave the best performance when + * checking a 768 and a 1024 bit ElGamal signature. + * (wk 22.12.97) */ +#ifndef KARATSUBA_THRESHOLD + #define KARATSUBA_THRESHOLD 16 +#endif + +/* The code can't handle KARATSUBA_THRESHOLD smaller than 2. */ +#if KARATSUBA_THRESHOLD < 2 + #undef KARATSUBA_THRESHOLD + #define KARATSUBA_THRESHOLD 2 +#endif typedef mpi_limb_t *mpi_ptr_t; /* pointer to a limb */ @@ -174,6 +189,9 @@ void mpihelp_mul_n( mpi_ptr_t prodp, mpi_ptr_t up, mpi_ptr_t vp, mpi_size_t size); mpi_limb_t mpihelp_mul( mpi_ptr_t prodp, mpi_ptr_t up, mpi_size_t usize, mpi_ptr_t vp, mpi_size_t vsize); +void mpih_sqr_n_basecase( mpi_ptr_t prodp, mpi_ptr_t up, mpi_size_t size ); +void mpih_sqr_n( mpi_ptr_t prodp, mpi_ptr_t up, mpi_size_t size, + mpi_ptr_t tspace); /*-- mpihelp-mul_1.c (or xxx/cpu/*.S) --*/ mpi_limb_t mpihelp_mul_1( mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr, |