#include <Python.h>
#include "includes.h"
#include "python/py3compat.h"
-#include "lib/crypto/arcfour.h"
+
+#include <gnutls/gnutls.h>
+#include <gnutls/crypto.h>
static PyObject *py_crypto_arcfour_crypt_blob(PyObject *module, PyObject *args)
{
- DATA_BLOB data, key;
+ DATA_BLOB data;
PyObject *py_data, *py_key, *result;
TALLOC_CTX *ctx;
+ gnutls_cipher_hd_t cipher_hnd = NULL;
+ gnutls_datum_t key;
+ int rc;
if (!PyArg_ParseTuple(args, "OO", &py_data, &py_key))
return NULL;
return PyErr_NoMemory();
}
- key.data = (uint8_t *)PyBytes_AsString(py_key);
- key.length = PyBytes_Size(py_key);
+ key = (gnutls_datum_t) {
+ .data = (uint8_t *)PyBytes_AsString(py_key),
+ .size = PyBytes_Size(py_key),
+ };
- arcfour_crypt_blob(data.data, data.length, &key);
+ rc = gnutls_cipher_init(&cipher_hnd,
+ GNUTLS_CIPHER_ARCFOUR_128,
+ &key,
+ NULL);
+ if (rc < 0) {
+ talloc_free(ctx);
+ PyErr_Format(PyExc_OSError, "encryption failed");
+ return NULL;
+ }
+ rc = gnutls_cipher_encrypt(cipher_hnd,
+ data.data,
+ data.length);
+ gnutls_cipher_deinit(cipher_hnd);
+ if (rc < 0) {
+ talloc_free(ctx);
+ PyErr_Format(PyExc_OSError, "encryption failed");
+ return NULL;
+ }
result = PyBytes_FromStringAndSize((const char*) data.data, data.length);
talloc_free(ctx);