pubkey.c: Allow RSA key generation with user-chosen public exponent.

[catacomb-python] / pubkey.c

diff --git a/pubkey.c b/pubkey.c
index f94108f..e0e8dc9 100644 (file)
--- a/pubkey.c
+++ b/pubkey.c
@@ -728,19 +728,24 @@ static PyObject *meth__RSAPriv_generate(PyObject *me,
   unsigned nbits;
   unsigned n = 0;
   rsa_priv rp;
+  mp *e = 0;
   pgev evt = { 0 };
-  char *kwlist[] = { "class", "nbits", "event", "rng", "nsteps", 0 };
+  char *kwlist[] = { "class", "nbits", "event", "rng", "nsteps", "e", 0 };
   PyObject *rc = 0;
 
-  if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO&|O&O&O&:generate", kwlist,
+  if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO&|O&O&O&O&:generate", kwlist,
                                   &me, convuint, &nbits, convpgev, &evt,
-                                  convgrand, &r, convuint, &n))
+                                  convgrand, &r, convuint, &n,
+                                  convmp, &e))
     goto end;
-  if (rsa_gen(&rp, nbits, r, n, evt.proc, evt.ctx))
+  if (e) MP_COPY(e);
+  else e = mp_fromulong(MP_NEW, 65537);
+  if (rsa_gen_e(&rp, nbits, e, r, n, evt.proc, evt.ctx))
     PGENERR;
   rc = rsapriv_pywrap(&rp);
 end:
   droppgev(&evt);
+  mp_drop(e);
   return (rc);
 }