Add a version of BigInt::binary_decode taking a MemoryRegion of bytes

2 files changed, 9 insertions, 0 deletions

diff --git a/include/bigint.h b/include/bigint.h
index 2fab6645c..44382b063 100644
--- a/include/bigint.h
+++ b/include/bigint.h
@@ -86,6 +86,7 @@ class BigInt
 
       void binary_encode(byte[]) const;
       void binary_decode(const byte[], u32bit);
+      void binary_decode(const MemoryRegion<byte>&);
       u32bit encoded_size(Base = Binary) const;
 
       static SecureVector<byte> encode(const BigInt&, Base = Binary);
diff --git a/src/big_base.cpp b/src/big_base.cpp
index 20d6f4ece..158d967fb 100644
--- a/src/big_base.cpp
+++ b/src/big_base.cpp
@@ -375,4 +375,12 @@ void BigInt::binary_decode(const byte buf[], u32bit length)
       reg[length / WORD_BYTES] = (reg[length / WORD_BYTES] << 8) | buf[j];
    }
 
+/*************************************************
+* Set this number to the value in buf            *
+*************************************************/
+void BigInt::binary_decode(const MemoryRegion<byte>& buf)
+   {
+   binary_decode(buf, buf.size());
+   }
+
 }