Merge pull request #485 from reaperhulk/common-crypto-cipher-bindings

Add cipher bindings for CommonCrypto

2 files changed, 95 insertions, 0 deletions

diff --git a/cryptography/hazmat/bindings/commoncrypto/binding.py b/cryptography/hazmat/bindings/commoncrypto/binding.py
index 9c1af40a..a5a0dca8 100644
--- a/cryptography/hazmat/bindings/commoncrypto/binding.py
+++ b/cryptography/hazmat/bindings/commoncrypto/binding.py
@@ -26,6 +26,7 @@ class Binding(object):
     _modules = [
         "common_digest",
         "common_hmac",
+        "common_cryptor",
     ]
 
     ffi = None
diff --git a/cryptography/hazmat/bindings/commoncrypto/common_cryptor.py b/cryptography/hazmat/bindings/commoncrypto/common_cryptor.py
new file mode 100644
index 00000000..ef0e7e10
--- /dev/null
+++ b/cryptography/hazmat/bindings/commoncrypto/common_cryptor.py
@@ -0,0 +1,94 @@
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+INCLUDES = """
+#include <CommonCrypto/CommonCryptor.h>
+"""
+
+TYPES = """
+enum {
+    kCCAlgorithmAES128 = 0,
+    kCCAlgorithmDES,
+    kCCAlgorithm3DES,
+    kCCAlgorithmCAST,
+    kCCAlgorithmRC4,
+    kCCAlgorithmRC2,
+    kCCAlgorithmBlowfish
+};
+typedef uint32_t CCAlgorithm;
+enum {
+    kCCSuccess = 0,
+    kCCParamError = -4300,
+    kCCBufferTooSmall = -4301,
+    kCCMemoryFailure = -4302,
+    kCCAlignmentError = -4303,
+    kCCDecodeError = -4304,
+    kCCUnimplemented = -4305
+};
+typedef int32_t CCCryptorStatus;
+typedef uint32_t CCOptions;
+enum {
+    kCCEncrypt = 0,
+    kCCDecrypt,
+};
+typedef uint32_t CCOperation;
+typedef ... *CCCryptorRef;
+
+enum {
+    kCCModeOptionCTR_LE = 0x0001,
+    kCCModeOptionCTR_BE = 0x0002
+};
+
+typedef uint32_t CCModeOptions;
+
+enum {
+    kCCModeECB = 1,
+    kCCModeCBC = 2,
+    kCCModeCFB = 3,
+    kCCModeCTR = 4,
+    kCCModeF8 = 5,
+    kCCModeLRW = 6,
+    kCCModeOFB = 7,
+    kCCModeXTS = 8,
+    kCCModeRC4 = 9,
+    kCCModeCFB8 = 10,
+};
+typedef uint32_t CCMode;
+enum {
+    ccNoPadding = 0,
+    ccPKCS7Padding = 1,
+};
+typedef uint32_t CCPadding;
+"""
+
+FUNCTIONS = """
+CCCryptorStatus CCCryptorCreateWithMode(CCOperation, CCMode, CCAlgorithm,
+                                        CCPadding, const void *, const void *,
+                                        size_t, const void *, size_t, int,
+                                        CCModeOptions, CCCryptorRef *);
+CCCryptorStatus CCCryptorCreate(CCOperation, CCAlgorithm, CCOptions,
+                                const void *, size_t, const void *,
+                                CCCryptorRef *);
+CCCryptorStatus CCCryptorUpdate(CCCryptorRef, const void *, size_t, void *,
+                                size_t, size_t *);
+CCCryptorStatus CCCryptorFinal(CCCryptorRef, void *, size_t, size_t *);
+CCCryptorStatus CCCryptorRelease(CCCryptorRef);
+"""
+
+MACROS = """
+"""
+
+CUSTOMIZATIONS = """
+"""
+
+CONDITIONAL_NAMES = {}