1 files changed, 24 insertions, 0 deletions
diff --git a/src/lib/math/bigint/bigint.cpp b/src/lib/math/bigint/bigint.cpp
index fd967e66e..39cff666c 100644
--- a/src/lib/math/bigint/bigint.cpp
+++ b/src/lib/math/bigint/bigint.cpp
@@ -113,6 +113,18 @@ BigInt::BigInt(RandomNumberGenerator& rng, size_t bits, bool set_high_bit)
    randomize(rng, bits, set_high_bit);
    }
 
+int32_t BigInt::cmp_word(word other) const
+   {
+   if(is_negative())
+      return -1; // other is positive ...
+
+   const size_t sw = this->sig_words();
+   if(sw > 1)
+      return 1; // must be larger since other is just one word ...
+
+   return bigint_cmp(this->data(), sw, &other, 1);
+   }
+
 /*
 * Comparison Function
 */
@@ -335,6 +347,18 @@ void BigInt::shrink_to_fit(size_t min_size)
    m_reg.resize(words);
    }
 
+#if defined(BOTAN_HAS_VALGRIND)
+void BigInt::const_time_poison() const
+   {
+   CT::poison(m_reg.data(), m_reg.size());
+   }
+
+void BigInt::const_time_unpoison() const
+   {
+   CT::unpoison(m_reg.data(), m_reg.size());
+   }
+#endif
+
 void BigInt::const_time_lookup(secure_vector<word>& output,
                                const std::vector<BigInt>& vec,
                                size_t idx)