Changelog
### 3.4.1
```
~~~~~~~~~~~~~~~~~~
* Fixed a circular import issue.
* Added additional debug output to assist users seeing installation errors
due to outdated ``pip`` or missing ``rustc``.
.. _v3-4:
```
### 3.4
```
~~~~~~~~~~~~~~~~
* **BACKWARDS INCOMPATIBLE:** Support for Python 2 has been removed.
* We now ship ``manylinux2014`` wheels and no longer ship ``manylinux1``
wheels. Users should upgrade to the latest ``pip`` to ensure this doesn't
cause issues downloading wheels on their platform.
* ``cryptography`` now incorporates Rust code. Users building ``cryptography``
themselves will need to have the Rust toolchain installed. Users who use an
officially produced wheel will not need to make any changes. The minimum
supported Rust version is 1.45.0.
* ``cryptography`` now has :pep:`484` type hints on nearly all of of its public
APIs. Users can begin using them to type check their code with ``mypy``.
.. _v3-3-2:
```
### 3.3.2
```
~~~~~~~~~~~~~~~~~~
* **SECURITY ISSUE:** Fixed a bug where certain sequences of ``update()`` calls
when symmetrically encrypting very large payloads (>2GB) could result in an
integer overflow, leading to buffer overflows. *CVE-2020-36242*
.. _v3-3-1:
```
### 3.3.1
```
~~~~~~~~~~~~~~~~~~
* Re-added a legacy symbol causing problems for older ``pyOpenSSL`` users.
.. _v3-3:
```
### 3.3
```
~~~~~~~~~~~~~~~~
* **BACKWARDS INCOMPATIBLE:** Support for Python 3.5 has been removed due to
low usage and maintenance burden.
* **BACKWARDS INCOMPATIBLE:** The
:class:`~cryptography.hazmat.primitives.ciphers.modes.GCM` and
:class:`~cryptography.hazmat.primitives.ciphers.aead.AESGCM` now require
64-bit to 1024-bit (8 byte to 128 byte) initialization vectors. This change
is to conform with an upcoming OpenSSL release that will no longer support
sizes outside this window.
* **BACKWARDS INCOMPATIBLE:** When deserializing asymmetric keys we now
raise ``ValueError`` rather than ``UnsupportedAlgorithm`` when an
unsupported cipher is used. This change is to conform with an upcoming
OpenSSL release that will no longer distinguish between error types.
* **BACKWARDS INCOMPATIBLE:** We no longer allow loading of finite field
Diffie-Hellman parameters of less than 512 bits in length. This change is to
conform with an upcoming OpenSSL release that no longer supports smaller
sizes. These keys were already wildly insecure and should not have been used
in any application outside of testing.
* Updated Windows, macOS, and ``manylinux`` wheels to be compiled with
OpenSSL 1.1.1i.
* Python 2 support is deprecated in ``cryptography``. This is the last release
that will support Python 2.
* Added the
:meth:`~cryptography.hazmat.primitives.asymmetric.rsa.RSAPublicKey.recover_data_from_signature`
function to
:class:`~cryptography.hazmat.primitives.asymmetric.rsa.RSAPublicKey`
for recovering the signed data from an RSA signature.
.. _v3-2-1:
```
### 3.2.1
```
~~~~~~~~~~~~~~~~~~
* Disable blinding on RSA public keys to address an error with some versions
of OpenSSL.
.. _v3-2:
```
### 3.2
```
~~~~~~~~~~~~~~~~
* **SECURITY ISSUE:** Attempted to make RSA PKCS1v1.5 decryption more constant
time, to protect against Bleichenbacher vulnerabilities. Due to limitations
imposed by our API, we cannot completely mitigate this vulnerability and a
future release will contain a new API which is designed to be resilient to
these for contexts where it is required. Credit to **Hubert Kario** for
reporting the issue. *CVE-2020-25659*
* Support for OpenSSL 1.0.2 has been removed. Users on older version of OpenSSL
will need to upgrade.
* Added basic support for PKCS7 signing (including SMIME) via
:class:`~cryptography.hazmat.primitives.serialization.pkcs7.PKCS7SignatureBuilder`.
.. _v3-1-1:
```
### 3.1.1
```
~~~~~~~~~~~~~~~~~~
* Updated Windows, macOS, and ``manylinux`` wheels to be compiled with
OpenSSL 1.1.1h.
.. _v3-1:
```
### 3.1
```
~~~~~~~~~~~~~~~~
* **BACKWARDS INCOMPATIBLE:** Removed support for ``idna`` based
:term:`U-label` parsing in various X.509 classes. This support was originally
deprecated in version 2.1 and moved to an extra in 2.5.
* Deprecated OpenSSL 1.0.2 support. OpenSSL 1.0.2 is no longer supported by
the OpenSSL project. The next version of ``cryptography`` will drop support
for it.
* Deprecated support for Python 3.5. This version sees very little use and will
be removed in the next release.
* ``backend`` arguments to functions are no longer required and the
default backend will automatically be selected if no ``backend`` is provided.
* Added initial support for parsing certificates from PKCS7 files with
:func:`~cryptography.hazmat.primitives.serialization.pkcs7.load_pem_pkcs7_certificates`
and
:func:`~cryptography.hazmat.primitives.serialization.pkcs7.load_der_pkcs7_certificates`
.
* Calling ``update`` or ``update_into`` on
:class:`~cryptography.hazmat.primitives.ciphers.CipherContext` with ``data``
longer than 2\ :sup:`31` bytes no longer raises an ``OverflowError``. This
also resolves the same issue in :doc:`/fernet`.
.. _v3-0:
```
Links
- PyPI: https://pypi.org/project/cryptography
- Changelog: https://pyup.io/changelogs/cryptography/
- Repo: https://github.com/pyca/cryptography
pyup-bot
commented
3 years ago
This PR updates cryptography from 3.0 to 3.4.1.
Changelog
### 3.4.1 ``` ~~~~~~~~~~~~~~~~~~ * Fixed a circular import issue. * Added additional debug output to assist users seeing installation errors due to outdated ``pip`` or missing ``rustc``. .. _v3-4: ``` ### 3.4 ``` ~~~~~~~~~~~~~~~~ * **BACKWARDS INCOMPATIBLE:** Support for Python 2 has been removed. * We now ship ``manylinux2014`` wheels and no longer ship ``manylinux1`` wheels. Users should upgrade to the latest ``pip`` to ensure this doesn't cause issues downloading wheels on their platform. * ``cryptography`` now incorporates Rust code. Users building ``cryptography`` themselves will need to have the Rust toolchain installed. Users who use an officially produced wheel will not need to make any changes. The minimum supported Rust version is 1.45.0. * ``cryptography`` now has :pep:`484` type hints on nearly all of of its public APIs. Users can begin using them to type check their code with ``mypy``. .. _v3-3-2: ``` ### 3.3.2 ``` ~~~~~~~~~~~~~~~~~~ * **SECURITY ISSUE:** Fixed a bug where certain sequences of ``update()`` calls when symmetrically encrypting very large payloads (>2GB) could result in an integer overflow, leading to buffer overflows. *CVE-2020-36242* .. _v3-3-1: ``` ### 3.3.1 ``` ~~~~~~~~~~~~~~~~~~ * Re-added a legacy symbol causing problems for older ``pyOpenSSL`` users. .. _v3-3: ``` ### 3.3 ``` ~~~~~~~~~~~~~~~~ * **BACKWARDS INCOMPATIBLE:** Support for Python 3.5 has been removed due to low usage and maintenance burden. * **BACKWARDS INCOMPATIBLE:** The :class:`~cryptography.hazmat.primitives.ciphers.modes.GCM` and :class:`~cryptography.hazmat.primitives.ciphers.aead.AESGCM` now require 64-bit to 1024-bit (8 byte to 128 byte) initialization vectors. This change is to conform with an upcoming OpenSSL release that will no longer support sizes outside this window. * **BACKWARDS INCOMPATIBLE:** When deserializing asymmetric keys we now raise ``ValueError`` rather than ``UnsupportedAlgorithm`` when an unsupported cipher is used. This change is to conform with an upcoming OpenSSL release that will no longer distinguish between error types. * **BACKWARDS INCOMPATIBLE:** We no longer allow loading of finite field Diffie-Hellman parameters of less than 512 bits in length. This change is to conform with an upcoming OpenSSL release that no longer supports smaller sizes. These keys were already wildly insecure and should not have been used in any application outside of testing. * Updated Windows, macOS, and ``manylinux`` wheels to be compiled with OpenSSL 1.1.1i. * Python 2 support is deprecated in ``cryptography``. This is the last release that will support Python 2. * Added the :meth:`~cryptography.hazmat.primitives.asymmetric.rsa.RSAPublicKey.recover_data_from_signature` function to :class:`~cryptography.hazmat.primitives.asymmetric.rsa.RSAPublicKey` for recovering the signed data from an RSA signature. .. _v3-2-1: ``` ### 3.2.1 ``` ~~~~~~~~~~~~~~~~~~ * Disable blinding on RSA public keys to address an error with some versions of OpenSSL. .. _v3-2: ``` ### 3.2 ``` ~~~~~~~~~~~~~~~~ * **SECURITY ISSUE:** Attempted to make RSA PKCS1v1.5 decryption more constant time, to protect against Bleichenbacher vulnerabilities. Due to limitations imposed by our API, we cannot completely mitigate this vulnerability and a future release will contain a new API which is designed to be resilient to these for contexts where it is required. Credit to **Hubert Kario** for reporting the issue. *CVE-2020-25659* * Support for OpenSSL 1.0.2 has been removed. Users on older version of OpenSSL will need to upgrade. * Added basic support for PKCS7 signing (including SMIME) via :class:`~cryptography.hazmat.primitives.serialization.pkcs7.PKCS7SignatureBuilder`. .. _v3-1-1: ``` ### 3.1.1 ``` ~~~~~~~~~~~~~~~~~~ * Updated Windows, macOS, and ``manylinux`` wheels to be compiled with OpenSSL 1.1.1h. .. _v3-1: ``` ### 3.1 ``` ~~~~~~~~~~~~~~~~ * **BACKWARDS INCOMPATIBLE:** Removed support for ``idna`` based :term:`U-label` parsing in various X.509 classes. This support was originally deprecated in version 2.1 and moved to an extra in 2.5. * Deprecated OpenSSL 1.0.2 support. OpenSSL 1.0.2 is no longer supported by the OpenSSL project. The next version of ``cryptography`` will drop support for it. * Deprecated support for Python 3.5. This version sees very little use and will be removed in the next release. * ``backend`` arguments to functions are no longer required and the default backend will automatically be selected if no ``backend`` is provided. * Added initial support for parsing certificates from PKCS7 files with :func:`~cryptography.hazmat.primitives.serialization.pkcs7.load_pem_pkcs7_certificates` and :func:`~cryptography.hazmat.primitives.serialization.pkcs7.load_der_pkcs7_certificates` . * Calling ``update`` or ``update_into`` on :class:`~cryptography.hazmat.primitives.ciphers.CipherContext` with ``data`` longer than 2\ :sup:`31` bytes no longer raises an ``OverflowError``. This also resolves the same issue in :doc:`/fernet`. .. _v3-0: ```Links
- PyPI: https://pypi.org/project/cryptography - Changelog: https://pyup.io/changelogs/cryptography/ - Repo: https://github.com/pyca/cryptography