From 4afa7c7e22298c19218f8829c23b04ed9972f44c Mon Sep 17 00:00:00 2001
From: John Safranek <john@wolfssl.com>
Date: Tue, 17 Oct 2017 14:42:13 -0700
Subject: [PATCH] RSA Update Added mp wrappers for fp_abs() and fp_2expt().

---
 wolfcrypt/src/tfm.c     | 13 +++++++++++++
 wolfssl/wolfcrypt/tfm.h |  2 ++
 2 files changed, 15 insertions(+)

diff --git a/wolfcrypt/src/tfm.c b/wolfcrypt/src/tfm.c
index 81edccd0b..5057b42ff 100644
--- a/wolfcrypt/src/tfm.c
+++ b/wolfcrypt/src/tfm.c
@@ -2455,6 +2455,12 @@ int mp_mul_2d(fp_int *a, int b, fp_int *c)
 	return MP_OKAY;
 }
 
+int mp_2expt(fp_int* a, int b)
+{
+    fp_2expt(a, b);
+    return MP_OKAY;
+}
+
 int mp_div(fp_int * a, fp_int * b, fp_int * c, fp_int * d)
 {
     return fp_div(a, b, c, d);
@@ -3389,6 +3395,13 @@ void mp_dump(const char* desc, mp_int* a, byte verbose)
 #endif /* defined(WOLFSSL_KEY_GEN) || defined(HAVE_COMP_KEY) || defined(WOLFSSL_DEBUG_MATH) */
 
 
+int mp_abs(mp_int* a, mp_int* b)
+{
+    fp_abs(a, b);
+    return FP_OKAY;
+}
+
+
 int mp_lshd (mp_int * a, int b)
 {
     fp_lshd(a, b);
diff --git a/wolfssl/wolfcrypt/tfm.h b/wolfssl/wolfcrypt/tfm.h
index e0432311b..43d546307 100644
--- a/wolfssl/wolfcrypt/tfm.h
+++ b/wolfssl/wolfcrypt/tfm.h
@@ -672,6 +672,7 @@ MP_API int  mp_mod(mp_int *a, mp_int *b, mp_int *c);
 MP_API int  mp_invmod(mp_int *a, mp_int *b, mp_int *c);
 MP_API int  mp_exptmod (mp_int * g, mp_int * x, mp_int * p, mp_int * y);
 MP_API int  mp_mul_2d(mp_int *a, int b, mp_int *c);
+MP_API int  mp_2expt(mp_int* a, int b);
 
 MP_API int  mp_div(mp_int * a, mp_int * b, mp_int * c, mp_int * d);
 
@@ -733,6 +734,7 @@ MP_API int  mp_cnt_lsb(fp_int *a);
 MP_API int  mp_div_2d(fp_int *a, int b, fp_int *c, fp_int *d);
 MP_API int  mp_mod_d(fp_int* a, fp_digit b, fp_digit* c);
 MP_API int  mp_lshd (mp_int * a, int b);
+MP_API int  mp_abs(mp_int* a, mp_int* b);
 
 WOLFSSL_API word32 CheckRunTimeFastMath(void);