From ce8ba928172071dc89cc1fc0520f840211bbfa0d Mon Sep 17 00:00:00 2001
From: Rob Austein <sra@hactrn.net>
Date: Fri, 14 Apr 2017 15:22:25 -0400
Subject: Python interface API will need to be cryptech.py11 for installation.

---
 py11/attributes.py | 101 -----------------------------------------------------
 1 file changed, 101 deletions(-)
 delete mode 100644 py11/attributes.py

(limited to 'py11/attributes.py')

diff --git a/py11/attributes.py b/py11/attributes.py
deleted file mode 100644
index 56473ad..0000000
--- a/py11/attributes.py
+++ /dev/null
@@ -1,101 +0,0 @@
-# An attempt at a Python interface to PKCS 11 using the scary ctypes
-# module from the Python standard library.
-
-from struct     import pack, unpack
-from ctypes     import *
-from .types     import *
-from .constants import *
-
-class Attribute(object):
-
-  @classmethod
-  def new(cls, attribute_name, type_name):
-    from . import constants
-    from . import types
-    assert attribute_name.startswith("CKA_")
-    attribute_number = getattr(constants, attribute_name)
-    type_class = getattr(types, type_name, str)
-    if type_class is CK_BBOOL:
-      cls = Attribute_CK_BBOOL
-    elif type_class is CK_ULONG:
-      cls = Attribute_CK_ULONG
-    elif type_name == "biginteger":
-      cls = Attribute_biginteger
-    return cls(attribute_name, attribute_number, type_name, type_class)
-
-  def __init__(self, attribute_name, attribute_number, type_name, type_class):
-    assert attribute_name.startswith("CKA_")
-    self.name = attribute_name
-    self.code = attribute_number
-    self.type_name = type_name
-    self.type_class = type_class
-
-  def encode(self, x): return x
-  def decode(self, x): return x
-
-class Attribute_CK_BBOOL(Attribute):
-  def encode(self, x): return chr(int(x))
-  def decode(self, x): return bool(ord(x))
-
-class Attribute_CK_ULONG(Attribute):
-  def encode(self, x): return pack("L", x)
-  def decode(self, x): return unpack("L", x)[0]
-
-class Attribute_biginteger(Attribute):
-  def encode(self, x): return "\x00" if x == 0 else ("%0*x" % (((x.bit_length() + 7) / 8) * 2, x)).decode("hex")
-  def decode(self, x): return long(x.encode("hex"), 16)
-
-
-class AttributeDB(object):
-
-  def __init__(self):
-    from .attribute_map import attribute_map
-    self.db = {}
-    for attribute_name, type_name in attribute_map.iteritems():
-      a = Attribute.new(attribute_name, type_name)
-      self.db[a.name] = a
-      self.db[a.code] = a
-
-  def encode(self, k, v):
-    return self.db[k].encode(v) if k in self.db else v
-
-  def decode(self, k, v):
-    return self.db[k].decode(v) if k in self.db else v
-
-  def getvalue_create_template(self, attributes):
-    attributes = tuple(self.db[a].code for a in attributes)
-    template = (CK_ATTRIBUTE * len(attributes))()
-    for i in xrange(len(attributes)):
-      template[i].type = attributes[i]
-      template[i].pValue = None
-      template[i].ulValueLen = 0
-    return template
-
-  def getvalue_allocate_template(self, template):
-    for t in template:
-      t.pValue = create_string_buffer(t.ulValueLen)
-
-  def from_ctypes(self, template):
-    return dict((t.type, self.decode(t.type, t.pValue[:t.ulValueLen]))
-                for t in template)
-
-  def to_ctypes(self, attributes):
-    attributes = tuple(attributes.iteritems()
-                       if isinstance(attributes, dict) else
-                       attributes)
-    template = (CK_ATTRIBUTE * len(attributes))()
-    for i, kv in enumerate(attributes):
-      k, v = kv
-      if k in self.db:
-        a = self.db[k]
-        k, v = a.code, a.encode(v)
-      template[i].type = k
-      template[i].pValue = create_string_buffer(v)
-      template[i].ulValueLen = len(v)
-    return template
-
-  def attribute_name(self, code):
-    return self.db[code].name
-
-  def attribute_code(self, name):
-    return self.db[name].code
-- 
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