diff --git a/include/mbedtls/rsa.h b/include/mbedtls/rsa.h
index df0ade8..46daac5 100644
--- a/include/mbedtls/rsa.h
+++ b/include/mbedtls/rsa.h
@@ -174,12 +174,13 @@
  * \param p_rng    PRNG context for f_rng, or NULL
  *
  * \return
- *                 - 0 if the following conditions are satisfied:
- *                    - N = PQ if N,P,Q != NULL
+ *                 - 0 if the following conditions are satisfied
+ *                   if all relevant parameters are provided:
+ *                    - P prime if f_rng != NULL
+ *                    - Q prime if f_rng != NULL
+ *                    - 1 < N = PQ
+ *                    - 1 < D, E < N
  *                    - D and E are modular inverses modulo P-1 and Q-1
- *                      if D,E,P,Q != NULL
- *                    - P prime if f_rng, P != NULL
- *                    - Q prime if f_rng, Q != NULL
  *                 - A non-zero error code otherwise.
  *
  * \note           The function can be used with a restricted set of arguments