commit d8ee8440a787b3d1b1a0c74fdce3152d7c026b7b
author Paul Bakker <p.j.bakker@polarssl.org> Wed May 16 08:02:29 2012 +0000
committer Paul Bakker <p.j.bakker@polarssl.org> Wed Jan 16 12:51:13 2013 +0100
tree 4cc533a702bf7a76ea5c69988403ac9bdc356739
parent 7261cbaa91da669512bcc2611f1a3bcee5ffcba8

mpi_exp_mod() now correctly handles negative base numbers (Closes ticket #52)
(cherry picked from commit f6198c1513edcb44e7edb96fc82e3a5549a4bdc3)

include/polarssl/bignum.h

diff --git a/include/polarssl/bignum.h b/include/polarssl/bignum.h
index ad03308..aed779d 100644
--- a/include/polarssl/bignum.h
+++ b/include/polarssl/bignum.h
@@ -537,7 +537,8 @@
  *
  * \return         0 if successful,
  *                 POLARSSL_ERR_MPI_MALLOC_FAILED if memory allocation failed,
- *                 POLARSSL_ERR_MPI_BAD_INPUT_DATA if N is negative or even
+ *                 POLARSSL_ERR_MPI_BAD_INPUT_DATA if N is negative or even or if
+ *                 E is negative
  *
  * \note           _RR is used to avoid re-computing R*R mod N across
  *                 multiple calls, which speeds up things a bit. It can