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-rw-r--r--docs/conf.py82
-rw-r--r--docs/development/test-vectors.rst12
-rw-r--r--docs/doing-a-release.rst4
-rw-r--r--docs/index.rst1
-rw-r--r--docs/limitations.rst19
5 files changed, 69 insertions, 49 deletions
diff --git a/docs/conf.py b/docs/conf.py
index 9b73a5bb..a924fa43 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -49,7 +49,7 @@ sys.path.insert(0, os.path.abspath('.'))
# -- General configuration ----------------------------------------------------
# If your documentation needs a minimal Sphinx version, state it here.
-#needs_sphinx = '1.0'
+# needs_sphinx = '1.0'
# Add any Sphinx extension module names here, as strings. They can be
# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
@@ -71,7 +71,7 @@ templates_path = ['_templates']
source_suffix = '.rst'
# The encoding of source files.
-#source_encoding = 'utf-8-sig'
+# source_encoding = 'utf-8-sig'
# The master toctree document.
master_doc = 'index'
@@ -94,37 +94,37 @@ version = release = about["__version__"]
# The language for content autogenerated by Sphinx. Refer to documentation
# for a list of supported languages.
-#language = None
+# language = None
# There are two options for replacing |today|: either, you set today to some
# non-false value, then it is used:
-#today = ''
+# today = ''
# Else, today_fmt is used as the format for a strftime call.
-#today_fmt = '%B %d, %Y'
+# today_fmt = '%B %d, %Y'
# List of patterns, relative to source directory, that match files and
# directories to ignore when looking for source files.
exclude_patterns = ['_build']
# The reST default role (used for this markup: `text`) to use for all documents
-#default_role = None
+# default_role = None
# If true, '()' will be appended to :func: etc. cross-reference text.
-#add_function_parentheses = True
+# add_function_parentheses = True
# If true, the current module name will be prepended to all description
# unit titles (such as .. function::).
-#add_module_names = True
+# add_module_names = True
# If true, sectionauthor and moduleauthor directives will be shown in the
# output. They are ignored by default.
-#show_authors = False
+# show_authors = False
# The name of the Pygments (syntax highlighting) style to use.
pygments_style = 'sphinx'
# A list of ignored prefixes for module index sorting.
-#modindex_common_prefix = []
+# modindex_common_prefix = []
# -- Options for HTML output --------------------------------------------------
@@ -141,23 +141,23 @@ else:
# Theme options are theme-specific and customize the look and feel of a theme
# further. For a list of options available for each theme, see the
# documentation.
-#html_theme_options = {}
+# html_theme_options = {}
# The name for this set of Sphinx documents. If None, it defaults to
# "<project> v<release> documentation".
-#html_title = None
+# html_title = None
# A shorter title for the navigation bar. Default is the same as html_title.
-#html_short_title = None
+# html_short_title = None
# The name of an image file (relative to this directory) to place at the top
# of the sidebar.
-#html_logo = None
+# html_logo = None
# The name of an image file (within the static path) to use as favicon of the
# docs. This file should be a Windows icon file (.ico) being 16x16 or 32x32
# pixels large.
-#html_favicon = None
+# html_favicon = None
# Add any paths that contain custom static files (such as style sheets) here,
# relative to this directory. They are copied after the builtin static files,
@@ -166,44 +166,44 @@ html_static_path = ['_static']
# If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
# using the given strftime format.
-#html_last_updated_fmt = '%b %d, %Y'
+# html_last_updated_fmt = '%b %d, %Y'
# If true, SmartyPants will be used to convert quotes and dashes to
# typographically correct entities.
-#html_use_smartypants = True
+# html_use_smartypants = True
# Custom sidebar templates, maps document names to template names.
-#html_sidebars = {}
+# html_sidebars = {}
# Additional templates that should be rendered to pages, maps page names to
# template names.
-#html_additional_pages = {}
+# html_additional_pages = {}
# If false, no module index is generated.
-#html_domain_indices = True
+# html_domain_indices = True
# If false, no index is generated.
-#html_use_index = True
+# html_use_index = True
# If true, the index is split into individual pages for each letter.
-#html_split_index = False
+# html_split_index = False
# If true, links to the reST sources are added to the pages.
-#html_show_sourcelink = True
+# html_show_sourcelink = True
# If true, "Created using Sphinx" is shown in the HTML footer. Default is True.
-#html_show_sphinx = True
+# html_show_sphinx = True
# If true, "(C) Copyright ..." is shown in the HTML footer. Default is True.
-#html_show_copyright = True
+# html_show_copyright = True
# If true, an OpenSearch description file will be output, and all pages will
# contain a <link> tag referring to it. The value of this option must be the
# base URL from which the finished HTML is served.
-#html_use_opensearch = ''
+# html_use_opensearch = ''
# This is the file name suffix for HTML files (e.g. ".xhtml").
-#html_file_suffix = None
+# html_file_suffix = None
# Output file base name for HTML help builder.
htmlhelp_basename = 'Cryptographydoc'
@@ -212,14 +212,6 @@ htmlhelp_basename = 'Cryptographydoc'
# -- Options for LaTeX output -------------------------------------------------
latex_elements = {
- # The paper size ('letterpaper' or 'a4paper').
- #'papersize': 'letterpaper',
-
- # The font size ('10pt', '11pt' or '12pt').
- #'pointsize': '10pt',
-
- # Additional stuff for the LaTeX preamble.
- #'preamble': '',
}
# Grouping the document tree into LaTeX files. List of tuples
@@ -231,23 +223,23 @@ latex_documents = [
# The name of an image file (relative to this directory) to place at the top of
# the title page.
-#latex_logo = None
+# latex_logo = None
# For "manual" documents, if this is true, then toplevel headings are parts,
# not chapters.
-#latex_use_parts = False
+# latex_use_parts = False
# If true, show page references after internal links.
-#latex_show_pagerefs = False
+# latex_show_pagerefs = False
# If true, show URL addresses after external links.
-#latex_show_urls = False
+# latex_show_urls = False
# Documents to append as an appendix to all manuals.
-#latex_appendices = []
+# latex_appendices = []
# If false, no module index is generated.
-#latex_domain_indices = True
+# latex_domain_indices = True
# -- Options for manual page output -------------------------------------------
@@ -260,7 +252,7 @@ man_pages = [
]
# If true, show URL addresses after external links.
-#man_show_urls = False
+# man_show_urls = False
# -- Options for Texinfo output -----------------------------------------------
@@ -276,13 +268,13 @@ texinfo_documents = [
]
# Documents to append as an appendix to all manuals.
-#texinfo_appendices = []
+# texinfo_appendices = []
# If false, no module index is generated.
-#texinfo_domain_indices = True
+# texinfo_domain_indices = True
# How to display URL addresses: 'footnote', 'no', or 'inline'.
-#texinfo_show_urls = 'footnote'
+# texinfo_show_urls = 'footnote'
# Example configuration for intersphinx: refer to the Python standard library.
intersphinx_mapping = {'http://docs.python.org/': None}
diff --git a/docs/development/test-vectors.rst b/docs/development/test-vectors.rst
index 164d0abd..c5ea8152 100644
--- a/docs/development/test-vectors.rst
+++ b/docs/development/test-vectors.rst
@@ -2,10 +2,14 @@ Test vectors
============
Testing the correctness of the primitives implemented in each ``cryptography``
-backend requires trusted test vectors. Where possible these vectors are obtained
-from official sources such as `NIST`_ or `IETF`_ RFCs. When this is not possible
-``cryptography`` has chosen to create a set of custom vectors using an official
-vector file as input to verify consistency between implemented backends.
+backend requires trusted test vectors. Where possible these vectors are
+obtained from official sources such as `NIST`_ or `IETF`_ RFCs. When this is
+not possible ``cryptography`` has chosen to create a set of custom vectors
+using an official vector file as input to verify consistency between
+implemented backends.
+
+Vectors are kept in the `cryptography_vectors` package rather than within our
+main test suite.
Sources
-------
diff --git a/docs/doing-a-release.rst b/docs/doing-a-release.rst
index 8b37df78..fc88a91c 100644
--- a/docs/doing-a-release.rst
+++ b/docs/doing-a-release.rst
@@ -10,6 +10,7 @@ The first step in doing a release is bumping the version number in the
software.
* Update the version number in ``cryptography/__about__.py``.
+* Update the version number in ``vectors/cryptography_vectors/__about__.py``.
* Set the release date in the :doc:`/changelog`.
* Do a commit indicating this.
* Send a pull request with this.
@@ -33,5 +34,8 @@ correctly:
>>> import cryptography
>>> cryptography.__version__
'...'
+ >>> import cryptography_vectors
+ >>> cryptography_vectors.__version__
+ '...'
Verify that this is the version you just released.
diff --git a/docs/index.rst b/docs/index.rst
index a25f4470..58424bfc 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -85,6 +85,7 @@ The ``cryptography`` open source project
installation
development/index
security
+ limitations
api-stability
doing-a-release
changelog
diff --git a/docs/limitations.rst b/docs/limitations.rst
new file mode 100644
index 00000000..5b63ef54
--- /dev/null
+++ b/docs/limitations.rst
@@ -0,0 +1,19 @@
+Known security limitations
+--------------------------
+
+Lack of secure memory wiping
+============================
+
+`Memory wiping`_ is used to protect secret data or key material from attackers
+with access to uninitialized memory. This can be either because the attacker
+has some kind of local user access or because of how other software uses
+uninitialized memory.
+
+Python exposes no API for us to implement this reliably and as such almost all
+software in Python is potentially vulnerable to this attack. However the
+`CERT secure coding guidelines`_ consider this issue as "low severity,
+unlikely, expensive to repair" and we do not consider this a high risk for most
+users.
+
+.. _`Memory wiping`: http://blogs.msdn.com/b/oldnewthing/archive/2013/05/29/10421912.aspx
+.. _`CERT secure coding guidelines`: https://www.securecoding.cert.org/confluence/display/seccode/MEM03-C.+Clear+sensitive+information+stored+in+reusable+resources