From be90fe073e6859c97cabeaf89c057820985edcf7 Mon Sep 17 00:00:00 2001
From: Juliusz Sosinowicz <juliusz@wolfssl.com>
Date: Fri, 2 Feb 2024 14:38:40 +0100
Subject: [PATCH] tfm and integer: skip whitespace at end in radix read

---
 wolfcrypt/src/integer.c | 3 +++
 wolfcrypt/src/tfm.c     | 8 +++++++-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/wolfcrypt/src/integer.c b/wolfcrypt/src/integer.c
index 21ae2353a..dadfeb4ee 100644
--- a/wolfcrypt/src/integer.c
+++ b/wolfcrypt/src/integer.c
@@ -5358,6 +5358,9 @@ int mp_read_radix (mp_int * a, const char *str, int radix)
     ++str;
   }
 
+  /* Skip whitespace at end of str */
+  while (CharIsWhiteSpace(*str))
+    ++str;
   /* if digit in isn't null term, then invalid character was found */
   if (*str != '\0') {
      mp_zero (a);
diff --git a/wolfcrypt/src/tfm.c b/wolfcrypt/src/tfm.c
index ff895c8ac..65d92ffa1 100644
--- a/wolfcrypt/src/tfm.c
+++ b/wolfcrypt/src/tfm.c
@@ -6029,7 +6029,13 @@ static int fp_read_radix(fp_int *a, const char *str, int radix)
       }
     }
     if (y >= radix) {
-      return FP_VAL;
+      /* Check if whitespace at end of line */
+      while (CharIsWhiteSpace(*str))
+        ++str;
+      if (*str)
+        return FP_VAL;
+      else
+        break;
     }
 
     /* if the char was found in the map