diff options
Diffstat (limited to 'mpint.h')
| -rw-r--r-- | mpint.h | 17 |
1 files changed, 15 insertions, 2 deletions
@@ -43,6 +43,13 @@ void mp_free(mp_int *); void mp_clear(mp_int *x); /* + * Resize the physical size of existing mp_int, e.g. so that you have + * room to transform it in place to a larger value. Destroys the old + * mp_int in the process. + */ +mp_int *mp_resize(mp_int *, size_t newmaxbits); + +/* * Create mp_ints from various sources: little- and big-endian binary * data, an ordinary C unsigned integer type, a decimal or hex string * (given either as a ptrlen or a C NUL-terminated string), and @@ -258,6 +265,12 @@ mp_int *mp_div(mp_int *n, mp_int *d); mp_int *mp_mod(mp_int *x, mp_int *modulus); /* + * Compute the residue of x mod m, where m is a small integer. x is + * kept secret, but m is not. + */ +uint32_t mp_mod_known_integer(mp_int *x, uint32_t m); + +/* * Integer nth root. mp_nthroot returns the largest integer x such * that x^n <= y, and if 'remainder' is non-NULL then it fills it with * the residue (y - x^n). @@ -422,10 +435,10 @@ mp_int *mp_rshift_fixed(mp_int *x, size_t shift); * * The _function_ definitions here will expect to be given a gen_data * function that provides random data. Normally you'd use this using - * random_read() from random.c, and the macro wrappers automate that. + * random_read() from sshrand.c, and the macro wrappers automate that. * * (This is a bit of a dodge to avoid mpint.c having a link-time - * dependency on random.c, so that programs can link against one but + * dependency on sshrand.c, so that programs can link against one but * not the other: if a client of this header uses one of these macros * then _they_ have link-time dependencies on both modules.) * |