struct gcry_mpi { int alloced; /* array size (# of allocated limbs) */ int nlimbs; /* number of valid limbs */ int nbits; /* the real number of valid bits (info only) */ int sign; /* indicates a negative number */ unsigned flags; /* bit 0: array must be allocated in secure memory space */ /* bit 1: not used */ /* bit 2: the limb is a pointer to some m_alloced data */
mpi_limb_t *d; /* array with the limbs */
};
typedefstruct gcry_mpi *MPI;
#define mpi_get_nlimbs(a) ((a)->nlimbs)
/*-- mpiutil.c --*/
MPI mpi_alloc(unsigned nlimbs); void mpi_free(MPI a); int mpi_resize(MPI a, unsigned nlimbs);
MPI mpi_copy(MPI a);
/*-- mpicoder.c --*/
MPI mpi_read_raw_data(constvoid *xbuffer, size_t nbytes);
MPI mpi_read_from_buffer(constvoid *buffer, unsigned *ret_nread);
MPI mpi_read_raw_from_sgl(struct scatterlist *sgl, unsignedint len); void *mpi_get_buffer(MPI a, unsigned *nbytes, int *sign); int mpi_read_buffer(MPI a, uint8_t *buf, unsigned buf_len, unsigned *nbytes, int *sign); int mpi_write_to_sgl(MPI a, struct scatterlist *sg, unsigned nbytes, int *sign);
/*-- mpi-mod.c --*/ int mpi_mod(MPI rem, MPI dividend, MPI divisor);
/*-- mpi-cmp.c --*/ int mpi_cmp_ui(MPI u, ulong v); int mpi_cmp(MPI u, MPI v);
/*-- mpi-sub-ui.c --*/ int mpi_sub_ui(MPI w, MPI u, unsignedlong vval);
/*-- mpi-bit.c --*/ void mpi_normalize(MPI a); unsigned mpi_get_nbits(MPI a); int mpi_test_bit(MPI a, unsignedint n); int mpi_set_bit(MPI a, unsignedint n); int mpi_rshift(MPI x, MPI a, unsignedint n);
/*-- mpi-add.c --*/ int mpi_add(MPI w, MPI u, MPI v); int mpi_sub(MPI w, MPI u, MPI v); int mpi_addm(MPI w, MPI u, MPI v, MPI m); int mpi_subm(MPI w, MPI u, MPI v, MPI m);
/*-- mpi-mul.c --*/ int mpi_mul(MPI w, MPI u, MPI v); int mpi_mulm(MPI w, MPI u, MPI v, MPI m);
/*-- mpi-div.c --*/ int mpi_tdiv_r(MPI rem, MPI num, MPI den); int mpi_fdiv_r(MPI rem, MPI dividend, MPI divisor);
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