diff options
Diffstat (limited to 'libtommath/bn_mp_radix_size.c')
| -rw-r--r-- | libtommath/bn_mp_radix_size.c | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/libtommath/bn_mp_radix_size.c b/libtommath/bn_mp_radix_size.c index 1b61e3a..40c4d04 100644 --- a/libtommath/bn_mp_radix_size.c +++ b/libtommath/bn_mp_radix_size.c @@ -12,7 +12,7 @@ * The library is free for all purposes without any express * guarantee it works. * - * Tom St Denis, tomstdenis@gmail.com, http://libtom.org + * Tom St Denis, tomstdenis@gmail.com, http://math.libtomcrypt.com */ /* returns size of ASCII reprensentation */ @@ -66,13 +66,18 @@ int mp_radix_size (mp_int * a, int radix, int *size) } mp_clear (&t); - /* return digs + 1, the 1 is for the NULL byte that would be required. */ - *size = digs + 1; + /* + * return digs + 1, the 1 is for the NULL byte that would be required. + * mp_toradix_n requires a minimum of 3 bytes, so never report less than + * that. + */ + + if ( digs >= 2 ) { + *size = digs + 1; + } else { + *size = 3; + } return MP_OKAY; } #endif - -/* $Source: /cvs/libtom/libtommath/bn_mp_radix_size.c,v $ */ -/* $Revision: 1.5 $ */ -/* $Date: 2006/12/28 01:25:13 $ */ |