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+.. hazmat::
+
+Asymmetric Utilities
+====================
+
+.. currentmodule:: cryptography.hazmat.primitives.asymmetric.utils
+
+
+.. function:: decode_rfc6979_signature(signature)
+
+    Takes in :rfc:`6979` signatures generated by the DSA/ECDSA signers and
+    returns a tuple ``(r, s)``.
+
+    :param bytes signature: The signature to decode.
+
+    :returns: The decoded tuple ``(r, s)``.
+
+.. function:: encode_rfc6979_signature(r, s)
+
+    Creates an :rfc:`6979` byte string from raw signature values.
+
+    :param int r: The raw signature value ``r``.
+
+    :param int s: The raw signature value ``s``.
+
+    :return bytes: The encoded signature.