1 files changed, 55 insertions, 0 deletions
diff --git a/common/src/leap/soledad/common/crypto.py b/common/src/leap/soledad/common/crypto.py
new file mode 100644
index 00000000..2c6bd7a3
--- /dev/null
+++ b/common/src/leap/soledad/common/crypto.py
@@ -0,0 +1,55 @@
+# -*- coding: utf-8 -*-
+# crypto.py
+# Copyright (C) 2013 LEAP
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+
+"""
+Soledad common crypto bits.
+"""
+
+
+#
+# Encryption schemes used for encryption.
+#
+
+class EncryptionSchemes(object):
+    """
+    Representation of encryption schemes used to encrypt documents.
+    """
+
+    NONE = 'none'
+    SYMKEY = 'symkey'
+    PUBKEY = 'pubkey'
+
+
+class MacMethods(object):
+    """
+    Representation of MAC methods used to authenticate document's contents.
+    """
+
+    HMAC = 'hmac'
+
+
+#
+# Crypto utilities for a SoledadDocument.
+#
+
+ENC_JSON_KEY = '_enc_json'
+ENC_SCHEME_KEY = '_enc_scheme'
+ENC_METHOD_KEY = '_enc_method'
+ENC_IV_KEY = '_enc_iv'
+MAC_KEY = '_mac'
+MAC_METHOD_KEY = '_mac_method'