Increase MPI_MAX_BYTES to allow RSA 8192
diff --git a/include/polarssl/bignum.h b/include/polarssl/bignum.h
index cd7592c..992ed8e 100644
--- a/include/polarssl/bignum.h
+++ b/include/polarssl/bignum.h
@@ -90,7 +90,7 @@
* Note: Calculations can results temporarily in larger MPIs. So the number
* of limbs required (POLARSSL_MPI_MAX_LIMBS) is higher.
*/
-#define POLARSSL_MPI_MAX_SIZE 512 /**< Maximum number of bytes for usable MPIs. */
+#define POLARSSL_MPI_MAX_SIZE 1024 /**< Maximum number of bytes for usable MPIs. */
#endif /* !POLARSSL_MPI_MAX_SIZE */
#define POLARSSL_MPI_MAX_BITS ( 8 * POLARSSL_MPI_MAX_SIZE ) /**< Maximum number of bits for usable MPIs. */