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PyPI · #10 most downloaded on PyPI
cryptography is a package which provides cryptographic recipes and primitives to Python developers.
Last release today
30 Sep 2026
Release timing varies
gaps range from 1 weeks to 3 months
Nearly every release is documented
notes for 60 of the last 60 stable releases
3 versions withdrawn
withdrawn after publishing
13 years old
160 releases · first in 2014
Added ~cryptography.hazmat.primitives.asymmetric.padding.calculate_max_pss_salt_length.
Added ~cryptography.hazmat.primitives.asymmetric.padding.calculate_max_pss_salt_length.
Added "one shot" ~cryptography.hazmat.primitives.asymmetric.dsa.DSAPrivateKey.sign and ~cryptography.hazmat.primitives.asymmetric.dsa.DSAPublicKey.verify methods to DSA keys.
Added "one shot" ~cryptography.hazmat.primitives.asymmetric.ec.EllipticCurvePrivateKey.sign and ~cryptography.hazmat.primitives.asymmetric.ec.EllipticCurvePublicKey.verify methods to ECDSA keys.
Switched back to the older callback model on Python 3.5 in order to mitigate the locking callback problem with OpenSSL <1.1.0.
~cryptography.x509.CertificateBuilder, ~cryptography.x509.CertificateRevocationListBuilder, and ~cryptography.x509.RevokedCertificateBuilder now accept timezone aware datetime objects as method arguments
cryptography now supports OpenSSL 1.1.0 as a compilation target.
Added calculate_max_pss_salt_length() .
Added “one shot” sign() and verify() methods to DSA keys.
Added “one shot” sign() and verify() methods to ECDSA keys.
Switched back to the older callback model on Python 3.5 in order to mitigate the locking callback problem with OpenSSL <1.1.0.
CertificateBuilder , CertificateRevocationListBuilder , and RevokedCertificateBuilder now accept timezone aware datetime objects as method arguments
cryptography now supports OpenSSL 1.1.0 as a compilation target.
One column per quarter.
Deprecated the serial attribute on ~cryptography.x509.Certificate, in favor of ~cryptography.x509.Certificate.serial_number.
Support for OpenSSL 0.9.8 has been removed. Users on older versions of OpenSSL will need to upgrade.
Added ~cryptography.hazmat.primitives.kdf.kbkdf.KBKDFHMAC.
Added support for OpenSSH public key serialization.
Added support for SHA-2 in RSA ~cryptography.hazmat.primitives.asymmetric.padding.OAEP when using OpenSSL 1.0.2 or greater.
Added "one shot" ~cryptography.hazmat.primitives.asymmetric.rsa.RSAPrivateKey.sign and ~cryptography.hazmat.primitives.asymmetric.rsa.RSAPublicKey.verify methods to RSA keys.
Deprecated the serial attribute on ~cryptography.x509.Certificate, in favor of ~cryptography.x509.Certificate.serial_number.
Support for OpenSSL 0.9.8 has been removed. Users on older versions of OpenSSL will need to upgrade.
Added KBKDFHMAC .
Added support for OpenSSH public key serialization.
Added support for SHA-2 in RSA OAEP when using OpenSSL 1.0.2 or greater.
Added “one shot” sign() and verify() methods to RSA keys.
Deprecated the serial attribute on Certificate , in favor of serial_number .
Added another OpenSSL function to the bindings to support an upcoming pyOpenSSL release.
Added another OpenSSL function to the bindings to support an upcoming pyOpenSSL release.
Added two new OpenSSL functions to the bindings to support an upcoming pyOpenSSL release.
Added two new OpenSSL functions to the bindings to support an upcoming pyOpenSSL release.
Updated Windows and OS X wheels to be compiled against OpenSSL 1.0.2h.
Updated Windows and OS X wheels to be compiled against OpenSSL 1.0.2h.
Fixed an issue preventing cryptography from compiling against LibreSSL 2.3.x.
Fixed a bug that caused an AttributeError when using mock to patch some cryptography modules.
Fixed a bug that caused an AttributeError when using mock to patch some cryptography modules.
Deprecated support for OpenSSL 0.9.8. Support will be removed in cryptography 1.4.
Added support for padding ANSI X.923 with ~cryptography.hazmat.primitives.padding.ANSIX923.
Deprecated support for OpenSSL 0.9.8. Support will be removed in cryptography 1.4.
Added support for the ~cryptography.x509.PolicyConstraints X.509 extension including both parsing and generation using ~cryptography.x509.CertificateBuilder and ~cryptography.x509.CertificateSigningRequestBuilder.
Added ~cryptography.x509.CertificateSigningRequest.is_signature_valid to ~cryptography.x509.CertificateSigningRequest.
Fixed an intermittent AssertionError when performing an RSA decryption on an invalid ciphertext, ValueError is now correctly raised in all cases.
Added ~cryptography.x509.AuthorityKeyIdentifier.from_issuer_subject_key_identifier.
Added support for padding ANSI X.923 with ANSIX923 .
Deprecated support for OpenSSL 0.9.8. Support will be removed in cryptography 1.4.
Added support for the PolicyConstraints X.509 extension including both parsing and generation using CertificateBuilder and CertificateSigningRequestBuilder .
Added is_signature_valid to CertificateSigningRequest .
Fixed an intermittent AssertionError when performing an RSA decryption on an invalid ciphertext, ValueError is now correctly raised in all cases.
Added from_issuer_subject_key_identifier() .
Updated Windows and OS X wheels to be compiled against OpenSSL 1.0.2g.
Updated Windows and OS X wheels to be compiled against OpenSSL 1.0.2g.
Updated Windows and OS X wheels to be compiled against OpenSSL 1.0.2f.
Updated Windows and OS X wheels to be compiled against OpenSSL 1.0.2f.
Reverts a change to an OpenSSL EVP_PKEY object that caused errors with pyOpenSSL.
Reverts a change to an OpenSSL EVP_PKEY object that caused errors with pyOpenSSL.
BACKWARDS INCOMPATIBLE: ~cryptography.x509.RevokedCertificate ~cryptography.x509.RevokedCertificate.extensions now uses extension classes rather than…
BACKWARDS INCOMPATIBLE: ~cryptography.x509.RevokedCertificate ~cryptography.x509.RevokedCertificate.extensions now uses extension classes rather than returning raw values inside the ~cryptography.x509.Extension ~cryptography.x509.Extension.value. The new classes are:
~cryptography.x509.CertificateIssuer
~cryptography.x509.CRLReason
~cryptography.x509.InvalidityDate
Deprecated support for OpenSSL 0.9.8 and 1.0.0. At this time there is no time table for actually dropping support, however we strongly encourage all users to upgrade, as those versions no longer receive support from the OpenSSL project.
The ~cryptography.x509.Certificate class now has ~cryptography.x509.Certificate.signature and ~cryptography.x509.Certificate.tbs_certificate_bytes attributes.
The ~cryptography.x509.CertificateSigningRequest class now has ~cryptography.x509.CertificateSigningRequest.signature and ~cryptography.x509.CertificateSigningRequest.tbs_certrequest_bytes attributes.
The ~cryptography.x509.CertificateRevocationList class now has ~cryptography.x509.CertificateRevocationList.signature and ~cryptography.x509.CertificateRevocationList.tbs_certlist_bytes attributes.
~cryptography.x509.NameConstraints are now supported in the ~cryptography.x509.CertificateBuilder and ~cryptography.x509.CertificateSigningRequestBuilder.
Support serialization of certificate revocation lists using the ~cryptography.x509.CertificateRevocationList.public_bytes method of ~cryptography.x509.CertificateRevocationList.
Add support for parsing ~cryptography.x509.CertificateRevocationList ~cryptography.x509.CertificateRevocationList.extensions in the OpenSSL backend. The following extensions are currently supported:
~cryptography.x509.AuthorityInformationAccess
~cryptography.x509.AuthorityKeyIdentifier
~cryptography.x509.CRLNumber
~cryptography.x509.IssuerAlternativeName
Added ~cryptography.x509.CertificateRevocationListBuilder and ~cryptography.x509.RevokedCertificateBuilder to allow creation of CRLs.
Unrecognized non-critical X.509 extensions are now parsed into an ~cryptography.x509.UnrecognizedExtension object.
BACKWARDS INCOMPATIBLE: RevokedCertificate extensions now uses extension classes rather than returning raw values inside the Extension value . The new classes are:
CertificateIssuer
CRLReason
InvalidityDate
Deprecated support for OpenSSL 0.9.8 and 1.0.0. At this time there is no time table for actually dropping support, however we strongly encourage all users to upgrade, as those versions no longer receive support from the OpenSSL project.
The Certificate class now has signature and tbs_certificate_bytes attributes.
The CertificateSigningRequest class now has signature and tbs_certrequest_bytes attributes.
The CertificateRevocationList class now has signature and tbs_certlist_bytes attributes.
NameConstraints are now supported in the CertificateBuilder and CertificateSigningRequestBuilder .
Support serialization of certificate revocation lists using the public_bytes() method of CertificateRevocationList .
Add support for parsing CertificateRevocationList extensions() in the OpenSSL backend. The following extensions are currently supported:
AuthorityInformationAccess
AuthorityKeyIdentifier
CRLNumber
IssuerAlternativeName
Added CertificateRevocationListBuilder and RevokedCertificateBuilder to allow creation of CRLs.
Unrecognized non-critical X.509 extensions are now parsed into an UnrecognizedExtension object.
Fixed a SIGBUS crash with the OS X wheels caused by redefinition of a method.
Fixed a SIGBUS crash with the OS X wheels caused by redefinition of a method.
Fixed a runtime error undefined symbol EC_GFp_nistp224_method that occurred with some OpenSSL installations.
Updated Windows and OS X wheels to be compiled against OpenSSL 1.0.2e.
Fixed several small bugs related to compiling the OpenSSL bindings with unusual OpenSSL configurations.
Fixed several small bugs related to compiling the OpenSSL bindings with unusual OpenSSL configurations.
Resolved an issue where, depending on the method of installation and which Python interpreter they were using, users on El Capitan (OS X 10.11) may have seen an InternalError on import.
Added support for Elliptic Curve Diffie-Hellman with ~cryptography.hazmat.primitives.asymmetric.ec.ECDH.
Added support for Elliptic Curve Diffie-Hellman with ~cryptography.hazmat.primitives.asymmetric.ec.ECDH.
Added ~cryptography.hazmat.primitives.kdf.x963kdf.X963KDF.
Added support for parsing certificate revocation lists (CRLs) using ~cryptography.x509.load_pem_x509_crl and ~cryptography.x509.load_der_x509_crl.
Add support for AES key wrapping with ~cryptography.hazmat.primitives.keywrap.aes_key_wrap and ~cryptography.hazmat.primitives.keywrap.aes_key_unwrap.
Added a __hash__ method to ~cryptography.x509.Name.
Add support for encoding and decoding elliptic curve points to a byte string form using cryptography.hazmat.primitives.asymmetric.ec.EllipticCurvePublicNumbers.encode_point and cryptography.hazmat.primitives.asymmetric.ec.EllipticCurvePublicNumbers.from_encoded_point.
Added ~cryptography.x509.Extensions.get_extension_for_class.
~cryptography.x509.CertificatePolicies are now supported in the ~cryptography.x509.CertificateBuilder.
countryName is now encoded as a PrintableString when creating subject and issuer distinguished names with the Certificate and CSR builder classes.
Added support for Elliptic Curve Diffie-Hellman with ECDH .
Added X963KDF .
Added support for parsing certificate revocation lists (CRLs) using load_pem_x509_crl() and load_der_x509_crl() .
Add support for AES key wrapping with aes_key_wrap() and aes_key_unwrap() .
Added a hash method to Name .
Add support for encoding and decoding elliptic curve points to a byte string form using cryptography.hazmat.primitives.asymmetric.ec.EllipticCurvePublicNumbers.encode_point and cryptography.hazmat.primitives.asymmetric.ec.EllipticCurvePublicNumbers.from_encoded_point .
Added get_extension_for_class() .
CertificatePolicies are now supported in the CertificateBuilder .
countryName is now encoded as a PrintableString when creating subject and issuer distinguished names with the Certificate and CSR builder classes.
SECURITY ISSUE: The OpenSSL backend prior to 1.0.2 made extensive use of assertions to check response codes where our tests could not trigger a failur
SECURITY ISSUE: The OpenSSL backend prior to 1.0.2 made extensive use of assertions to check response codes where our tests could not trigger a failure. However, when Python is run with -O these asserts are optimized away. If a user ran Python with this flag and got an invalid response code this could result in undefined behavior or worse. Accordingly, all response checks from the OpenSSL backend have been converted from assert to a true function call. Credit Emilia Käsper (Google Security Team) for the report.
We now ship OS X wheels that statically link OpenSSL by default. When installing a wheel on OS X 10.10+ (and using a Python compiled against the 10.10
We now ship OS X wheels that statically link OpenSSL by default. When installing a wheel on OS X 10.10+ (and using a Python compiled against the 10.10 SDK) users will no longer need to compile. See /installation for alternate installation methods if required.
Set the default string mask to UTF-8 in the OpenSSL backend to resolve character encoding issues with older versions of OpenSSL.
Several new OpenSSL bindings have been added to support a future pyOpenSSL release.
Raise an error during install on PyPy < 2.6. 1.0+ requires PyPy 2.6+.
Deprecate encode_rfc6979_signature and decode_rfc6979_signature in favor of ~cryptography.hazmat.primitives.asymmetric.utils.encode_dss_signature and…
Switched to the new `cffi`_ set_source out-of-line API mode for compilation. This results in significantly faster imports and lowered memory consumption. Due to this change we no longer support PyPy releases older than 2.6 nor do we support any released version of PyPy3 (until a version supporting cffi 1.0 comes out).
Fix parsing of OpenSSH public keys that have spaces in comments.
Support serialization of certificate signing requests using the public_bytes method of ~cryptography.x509.CertificateSigningRequest.
Support serialization of certificates using the public_bytes method of ~cryptography.x509.Certificate.
Add get_provisioning_uri method to ~cryptography.hazmat.primitives.twofactor.hotp.HOTP and ~cryptography.hazmat.primitives.twofactor.totp.TOTP for generating provisioning URIs.
Add ~cryptography.hazmat.primitives.kdf.concatkdf.ConcatKDFHash and ~cryptography.hazmat.primitives.kdf.concatkdf.ConcatKDFHMAC.
Raise a TypeError when passing objects that are not text as the value to ~cryptography.x509.NameAttribute.
Add support for ~cryptography.x509.OtherName as a general name type.
Added new X.509 extension support in ~cryptography.x509.Certificate The following new extensions are now supported:
~cryptography.x509.OCSPNoCheck
~cryptography.x509.InhibitAnyPolicy
~cryptography.x509.IssuerAlternativeName
~cryptography.x509.NameConstraints
Extension support was added to ~cryptography.x509.CertificateSigningRequest.
Add support for creating signed certificates with ~cryptography.x509.CertificateBuilder. This includes support for the following extensions:
~cryptography.x509.BasicConstraints
~cryptography.x509.SubjectAlternativeName
~cryptography.x509.KeyUsage
~cryptography.x509.ExtendedKeyUsage
~cryptography.x509.SubjectKeyIdentifier
~cryptography.x509.AuthorityKeyIdentifier
~cryptography.x509.AuthorityInformationAccess
~cryptography.x509.CRLDistributionPoints
~cryptography.x509.InhibitAnyPolicy
~cryptography.x509.IssuerAlternativeName
~cryptography.x509.OCSPNoCheck
Add support for creating certificate signing requests with ~cryptography.x509.CertificateSigningRequestBuilder. This includes support for the same extensions supported in the CertificateBuilder.
Deprecate encode_rfc6979_signature and decode_rfc6979_signature in favor of ~cryptography.hazmat.primitives.asymmetric.utils.encode_dss_signature and ~cryptography.hazmat.primitives.asymmetric.utils.decode_dss_signature.
Switched to the new cffi set_source out-of-line API mode for compilation. This results in significantly faster imports and lowered memory consumption. Due to this change we no longer support PyPy releases older than 2.6 nor do we support any released version of PyPy3 (until a version supporting cffi 1.0 comes out).
Fix parsing of OpenSSH public keys that have spaces in comments.
Support serialization of certificate signing requests using the public_bytes method of CertificateSigningRequest .
Support serialization of certificates using the public_bytes method of Certificate .
Add get_provisioning_uri method to HOTP and TOTP for generating provisioning URIs.
Add ConcatKDFHash and ConcatKDFHMAC .
Raise a TypeError when passing objects that are not text as the value to NameAttribute .
Add support for OtherName as a general name type.
Added new X.509 extension support in Certificate The following new extensions are now supported:
OCSPNoCheck
InhibitAnyPolicy
IssuerAlternativeName
NameConstraints
Extension support was added to CertificateSigningRequest .
Add support for creating signed certificates with CertificateBuilder . This includes support for the following extensions:
BasicConstraints
SubjectAlternativeName
KeyUsage
ExtendedKeyUsage
SubjectKeyIdentifier
AuthorityKeyIdentifier
AuthorityInformationAccess
CRLDistributionPoints
InhibitAnyPolicy
IssuerAlternativeName
OCSPNoCheck
Add support for creating certificate signing requests with CertificateSigningRequestBuilder . This includes support for the same extensions supported in the CertificateBuilder .
Deprecate encode_rfc6979_signature and decode_rfc6979_signature in favor of encode_dss_signature() and decode_dss_signature() .
Updated Windows wheels to be compiled against OpenSSL 1.0.2d.
Updated Windows wheels to be compiled against OpenSSL 1.0.2d.
Updated Windows wheels to be compiled against OpenSSL 1.0.2c.
Updated Windows wheels to be compiled against OpenSSL 1.0.2c.
SECURITY ISSUE: Fixed a double free in the OpenSSL backend when using DSA to verify signatures. Note that this only affects PyPy 2.6.0 and (presently
SECURITY ISSUE: Fixed a double free in the OpenSSL backend when using DSA to verify signatures. Note that this only affects PyPy 2.6.0 and (presently unreleased) CFFI versions greater than 1.1.0.
Deprecated support for Python 2.6. At the time there is no time table for actually dropping support, however we strongly encourage all users to upgrad…
Removed support for Python 3.2. This version of Python is rarely used and caused support headaches. Users affected by this should upgrade to 3.3+.
Deprecated support for Python 2.6. At the time there is no time table for actually dropping support, however we strongly encourage all users to upgrade their Python, as Python 2.6 no longer receives support from the Python core team.
Add support for the ~cryptography.hazmat.primitives.asymmetric.ec.SECP256K1 elliptic curve.
Fixed compilation when using an OpenSSL which was compiled with the no-comp (OPENSSL_NO_COMP) option.
Support ~cryptography.hazmat.primitives.serialization.Encoding.DER serialization of public keys using the public_bytes method of ~cryptography.hazmat.primitives.asymmetric.rsa.RSAPublicKey, ~cryptography.hazmat.primitives.asymmetric.dsa.DSAPublicKey, and ~cryptography.hazmat.primitives.asymmetric.ec.EllipticCurvePublicKey.
Support ~cryptography.hazmat.primitives.serialization.Encoding.DER serialization of private keys using the private_bytes method of ~cryptography.hazmat.primitives.asymmetric.rsa.RSAPrivateKey, ~cryptography.hazmat.primitives.asymmetric.dsa.DSAPrivateKey, and ~cryptography.hazmat.primitives.asymmetric.ec.EllipticCurvePrivateKey.
Add support for parsing X.509 certificate signing requests (CSRs) with ~cryptography.x509.load_pem_x509_csr and ~cryptography.x509.load_der_x509_csr.
Moved cryptography.exceptions.InvalidToken to cryptography.hazmat.primitives.twofactor.InvalidToken and deprecated the old location. This was moved to minimize confusion between this exception and cryptography.fernet.InvalidToken.
Added support for X.509 extensions in ~cryptography.x509.Certificate objects. The following extensions are supported as of this release:
~cryptography.x509.BasicConstraints
~cryptography.x509.AuthorityKeyIdentifier
~cryptography.x509.SubjectKeyIdentifier
~cryptography.x509.KeyUsage
~cryptography.x509.SubjectAlternativeName
~cryptography.x509.ExtendedKeyUsage
~cryptography.x509.CRLDistributionPoints
~cryptography.x509.AuthorityInformationAccess
~cryptography.x509.CertificatePolicies
Note that unsupported extensions with the critical flag raise UnsupportedExtension while unsupported extensions set to non-critical are silently ignored. Read the X.509 documentation for more information.
Removed support for Python 3.2. This version of Python is rarely used and caused support headaches. Users affected by this should upgrade to 3.3+.
Deprecated support for Python 2.6. At the time there is no time table for actually dropping support, however we strongly encourage all users to upgrade their Python, as Python 2.6 no longer receives support from the Python core team.
Add support for the SECP256K1 elliptic curve.
Fixed compilation when using an OpenSSL which was compiled with the no-comp ( OPENSSL_NO_COMP ) option.
Support DER serialization of public keys using the public_bytes method of RSAPublicKey , DSAPublicKey , and EllipticCurvePublicKey .
Support DER serialization of private keys using the private_bytes method of RSAPrivateKey , DSAPrivateKey , and EllipticCurvePrivateKey .
Add support for parsing X.509 certificate signing requests (CSRs) with load_pem_x509_csr() and load_der_x509_csr() .
Moved cryptography.exceptions.InvalidToken to cryptography.hazmat.primitives.twofactor.InvalidToken and deprecated the old location. This was moved to minimize confusion between this exception and cryptography.fernet.InvalidToken .
Added support for X.509 extensions in Certificate objects. The following extensions are supported as of this release:
BasicConstraints
AuthorityKeyIdentifier
SubjectKeyIdentifier
KeyUsage
SubjectAlternativeName
ExtendedKeyUsage
CRLDistributionPoints
AuthorityInformationAccess
CertificatePolicies
Note that unsupported extensions with the critical flag raise UnsupportedExtension while unsupported extensions set to non-critical are silently ignored. Read the X.509 documentation for more information.
Fixed a race condition when initializing the OpenSSL or CommonCrypto backends in a multi-threaded scenario.
Fixed a race condition when initializing the OpenSSL or CommonCrypto backends in a multi-threaded scenario.
Updated Windows wheels to be compiled against OpenSSL 1.0.2a.
Updated Windows wheels to be compiled against OpenSSL 1.0.2a.
Added EllipticCurvePrivateKeyWithSerialization and deprecated EllipticCurvePrivateKeyWithNumbers.
~cryptography.hazmat.primitives.serialization.load_ssh_public_key can now load elliptic curve public keys.
Added ~cryptography.x509.Certificate.signature_hash_algorithm support to ~cryptography.x509.Certificate.
Added ~cryptography.hazmat.primitives.asymmetric.rsa.rsa_recover_prime_factors
~cryptography.hazmat.primitives.kdf.KeyDerivationFunction was moved from cryptography.hazmat.primitives.interfaces to ~cryptography.hazmat.primitives.kdf.
Added support for parsing X.509 names. See the X.509 documentation for more information.
Added ~cryptography.hazmat.primitives.serialization.load_der_private_key to support loading of DER encoded private keys and ~cryptography.hazmat.primitives.serialization.load_der_public_key to support loading DER encoded public keys.
Fixed building against LibreSSL, a compile-time substitute for OpenSSL.
FreeBSD 9.2 was removed from the continuous integration system.
Updated Windows wheels to be compiled against OpenSSL 1.0.2.
~cryptography.hazmat.primitives.serialization.load_pem_public_key and ~cryptography.hazmat.primitives.serialization.load_der_public_key now support PKCS1 RSA public keys (in addition to the previous support for SubjectPublicKeyInfo format for RSA, EC, and DSA).
Added EllipticCurvePrivateKeyWithSerialization and deprecated EllipticCurvePrivateKeyWithNumbers.
Added ~cryptography.hazmat.primitives.asymmetric.ec.EllipticCurvePrivateKey.private_bytes to ~cryptography.hazmat.primitives.asymmetric.ec.EllipticCurvePrivateKey.
Added RSAPrivateKeyWithSerialization and deprecated RSAPrivateKeyWithNumbers.
Added ~cryptography.hazmat.primitives.asymmetric.rsa.RSAPrivateKey.private_bytes to ~cryptography.hazmat.primitives.asymmetric.rsa.RSAPrivateKey.
Added DSAPrivateKeyWithSerialization and deprecated DSAPrivateKeyWithNumbers.
Added ~cryptography.hazmat.primitives.asymmetric.dsa.DSAPrivateKey.private_bytes to ~cryptography.hazmat.primitives.asymmetric.dsa.DSAPrivateKey.
Added RSAPublicKeyWithSerialization and deprecated RSAPublicKeyWithNumbers.
Added public_bytes to ~cryptography.hazmat.primitives.asymmetric.rsa.RSAPublicKey.
Added EllipticCurvePublicKeyWithSerialization and deprecated EllipticCurvePublicKeyWithNumbers.
Added public_bytes to ~cryptography.hazmat.primitives.asymmetric.ec.EllipticCurvePublicKey.
Added DSAPublicKeyWithSerialization and deprecated DSAPublicKeyWithNumbers.
Added public_bytes to ~cryptography.hazmat.primitives.asymmetric.dsa.DSAPublicKey.
~cryptography.hazmat.primitives.hashes.HashAlgorithm and ~cryptography.hazmat.primitives.hashes.HashContext were moved from cryptography.hazmat.primitives.interfaces to ~cryptography.hazmat.primitives.hashes.
~cryptography.hazmat.primitives.ciphers.CipherContext, ~cryptography.hazmat.primitives.ciphers.AEADCipherContext, ~cryptography.hazmat.primitives.ciphers.AEADEncryptionContext, ~cryptography.hazmat.primitives.ciphers.CipherAlgorithm, and ~cryptography.hazmat.primitives.ciphers.BlockCipherAlgorithm were moved from cryptography.hazmat.primitives.interfaces to ~cryptography.hazmat.primitives.ciphers.
~cryptography.hazmat.primitives.ciphers.modes.Mode, ~cryptography.hazmat.primitives.ciphers.modes.ModeWithInitializationVector, ~cryptography.hazmat.primitives.ciphers.modes.ModeWithNonce, and ~cryptography.hazmat.primitives.ciphers.modes.ModeWithAuthenticationTag were moved from cryptography.hazmat.primitives.interfaces to ~cryptography.hazmat.primitives.ciphers.modes.
~cryptography.hazmat.primitives.padding.PaddingContext was moved from cryptography.hazmat.primitives.interfaces to ~cryptography.hazmat.primitives.padding.
~cryptography.hazmat.primitives.asymmetric.padding.AsymmetricPadding was moved from cryptography.hazmat.primitives.interfaces to ~cryptography.hazmat.primitives.asymmetric.padding.
AsymmetricSignatureContext and AsymmetricVerificationContext were moved from cryptography.hazmat.primitives.interfaces to cryptography.hazmat.primitives.asymmetric.
~cryptography.hazmat.primitives.asymmetric.dsa.DSAParameters, DSAParametersWithNumbers, ~cryptography.hazmat.primitives.asymmetric.dsa.DSAPrivateKey, DSAPrivateKeyWithNumbers, ~cryptography.hazmat.primitives.asymmetric.dsa.DSAPublicKey and DSAPublicKeyWithNumbers were moved from cryptography.hazmat.primitives.interfaces to ~cryptography.hazmat.primitives.asymmetric.dsa
~cryptography.hazmat.primitives.asymmetric.ec.EllipticCurve, ~cryptography.hazmat.primitives.asymmetric.ec.EllipticCurveSignatureAlgorithm, ~cryptography.hazmat.primitives.asymmetric.ec.EllipticCurvePrivateKey, EllipticCurvePrivateKeyWithNumbers, ~cryptography.hazmat.primitives.asymmetric.ec.EllipticCurvePublicKey, and EllipticCurvePublicKeyWithNumbers were moved from cryptography.hazmat.primitives.interfaces to ~cryptography.hazmat.primitives.asymmetric.ec.
~cryptography.hazmat.primitives.asymmetric.rsa.RSAPrivateKey, RSAPrivateKeyWithNumbers, ~cryptography.hazmat.primitives.asymmetric.rsa.RSAPublicKey and RSAPublicKeyWithNumbers were moved from cryptography.hazmat.primitives.interfaces to ~cryptography.hazmat.primitives.asymmetric.rsa.
load_ssh_public_key() can now load elliptic curve public keys.
Added signature_hash_algorithm support to Certificate .
Added rsa_recover_prime_factors()
KeyDerivationFunction was moved from cryptography.hazmat.primitives.interfaces to kdf .
Added support for parsing X.509 names. See the X.509 documentation for more information.
Added load_der_private_key() to support loading of DER encoded private keys and load_der_public_key() to support loading DER encoded public keys.
Fixed building against LibreSSL, a compile-time substitute for OpenSSL.
FreeBSD 9.2 was removed from the continuous integration system.
Updated Windows wheels to be compiled against OpenSSL 1.0.2.
load_pem_public_key() and load_der_public_key() now support PKCS1 RSA public keys (in addition to the previous support for SubjectPublicKeyInfo format for RSA, EC, and DSA).
Added EllipticCurvePrivateKeyWithSerialization and deprecated EllipticCurvePrivateKeyWithNumbers .
Added private_bytes() to EllipticCurvePrivateKey .
Added RSAPrivateKeyWithSerialization and deprecated RSAPrivateKeyWithNumbers .
Added private_bytes() to RSAPrivateKey .
Added DSAPrivateKeyWithSerialization and deprecated DSAPrivateKeyWithNumbers .
Added private_bytes() to DSAPrivateKey .
Added RSAPublicKeyWithSerialization and deprecated RSAPublicKeyWithNumbers .
Added public_bytes to RSAPublicKey .
Added EllipticCurvePublicKeyWithSerialization and deprecated EllipticCurvePublicKeyWithNumbers .
Added public_bytes to EllipticCurvePublicKey .
Added DSAPublicKeyWithSerialization and deprecated DSAPublicKeyWithNumbers .
Added public_bytes to DSAPublicKey .
HashAlgorithm and HashContext were moved from cryptography.hazmat.primitives.interfaces to hashes .
CipherContext , AEADCipherContext , AEADEncryptionContext , CipherAlgorithm , and BlockCipherAlgorithm were moved from cryptography.hazmat.primitives.interfaces to ciphers .
Mode , ModeWithInitializationVector , ModeWithNonce , and ModeWithAuthenticationTag were moved from cryptography.hazmat.primitives.interfaces to modes .
PaddingContext was moved from cryptography.hazmat.primitives.interfaces to padding .
AsymmetricPadding was moved from cryptography.hazmat.primitives.interfaces to padding .
AsymmetricSignatureContext and AsymmetricVerificationContext were moved from cryptography.hazmat.primitives.interfaces to cryptography.hazmat.primitives.asymmetric .
DSAParameters , DSAParametersWithNumbers , DSAPrivateKey , DSAPrivateKeyWithNumbers , DSAPublicKey and DSAPublicKeyWithNumbers were moved from cryptography.hazmat.primitives.interfaces to dsa
EllipticCurve , EllipticCurveSignatureAlgorithm , EllipticCurvePrivateKey , EllipticCurvePrivateKeyWithNumbers , EllipticCurvePublicKey , and EllipticCurvePublicKeyWithNumbers were moved from cryptography.hazmat.primitives.interfaces to ec .
RSAPrivateKey , RSAPrivateKeyWithNumbers , RSAPublicKey and RSAPublicKeyWithNumbers were moved from cryptography.hazmat.primitives.interfaces to rsa .
Updated Windows wheels to be compiled against OpenSSL 1.0.1l.
Updated Windows wheels to be compiled against OpenSSL 1.0.1l.
enum34 is no longer installed on Python 3.4, where it is included in the standard library.
Added a new function to the OpenSSL bindings to support additional functionality in pyOpenSSL.
Fixed an issue preventing compilation on platforms where OPENSSL_NO_SSL3 was defined.
Fixed an issue preventing compilation on platforms where OPENSSL_NO_SSL3 was defined.
Added MACContext as a common interface for CMAC and HMAC and deprecated CMACContext.
Cryptography has been relicensed from the Apache Software License, Version 2.0, to being available under either the Apache Software License, Version 2.0, or the BSD license.
Added key-rotation support to Fernet with ~cryptography.fernet.MultiFernet.
More bit-lengths are now supported for p and q when loading DSA keys from numbers.
Added MACContext as a common interface for CMAC and HMAC and deprecated CMACContext.
Added support for encoding and decoding 6979 signatures in /hazmat/primitives/asymmetric/utils.
Added ~cryptography.hazmat.primitives.serialization.load_ssh_public_key to support the loading of OpenSSH public keys (4253). Only RSA and DSA keys are currently supported.
Added initial support for X.509 certificate parsing. See the X.509 documentation for more information.
Cryptography has been relicensed from the Apache Software License, Version 2.0, to being available under either the Apache Software License, Version 2.0, or the BSD license.
Added key-rotation support to Fernet with MultiFernet .
More bit-lengths are now supported for p and q when loading DSA keys from numbers.
Added MACContext as a common interface for CMAC and HMAC and deprecated CMACContext .
Added support for encoding and decoding RFC 6979 signatures in Asymmetric Utilities .
Added load_ssh_public_key() to support the loading of OpenSSH public keys ( RFC 4253 ). Only RSA and DSA keys are currently supported.
Added initial support for X.509 certificate parsing. See the X.509 documentation for more information.
Updated Windows wheels to be compiled against OpenSSL 1.0.1j.
Updated Windows wheels to be compiled against OpenSSL 1.0.1j.
Fixed an issue where OpenSSL 1.0.1j changed the errors returned by some functions.
Added our license file to the cryptography-vectors package.
Implemented DSA hash truncation support (per FIPS 186-3) in the OpenSSL backend. This works around an issue in 1.0.0, 1.0.0a, and 1.0.0b where truncation was not implemented.
Removed the, deprecated in 0.4, support for the salt_length argument to the ~cryptography.hazmat.primitives.asymmetric.padding.MGF1 constructor. The s…
Added ~cryptography.hazmat.primitives.serialization.load_pem_private_key to ease loading private keys, and ~cryptography.hazmat.primitives.serialization.load_pem_public_key to support loading public keys.
Removed the, deprecated in 0.4, support for the salt_length argument to the ~cryptography.hazmat.primitives.asymmetric.padding.MGF1 constructor. The salt_length should be passed to ~cryptography.hazmat.primitives.asymmetric.padding.PSS instead.
Fix compilation on OS X Yosemite.
Deprecated elliptic_curve_private_key_from_numbers and elliptic_curve_public_key_from_numbers in favor of load_elliptic_curve_private_numbers and load_elliptic_curve_public_numbers on EllipticCurveBackend.
Added EllipticCurvePrivateKeyWithNumbers and EllipticCurvePublicKeyWithNumbers support.
Work around three GCM related bugs in CommonCrypto and OpenSSL.
On the CommonCrypto backend adding AAD but not subsequently calling update would return null tag bytes.
One the CommonCrypto backend a call to update without an empty add AAD call would return null ciphertext bytes.
On the OpenSSL backend with certain versions adding AAD only would give invalid tag bytes.
Support loading EC private keys from PEM.
Added several functions to the OpenSSL bindings to support new functionality in pyOpenSSL.
Added several functions to the OpenSSL bindings to support new functionality in pyOpenSSL.
Fixed a redefined constant causing compilation failure with Solaris 11.2.
Updated Windows wheels to be compiled against OpenSSL 1.0.1i.
Updated Windows wheels to be compiled against OpenSSL 1.0.1i.
Add TraditionalOpenSSLSerializationBackend support to multibackend.
Add TraditionalOpenSSLSerializationBackend support to multibackend.
Fix compilation error on OS X 10.8 (Mountain Lion).
Add PKCS8SerializationBackend support to multibackend.
Add PKCS8SerializationBackend support to multibackend.
BACKWARDS INCOMPATIBLE: ~cryptography.hazmat.primitives.ciphers.modes.GCM no longer allows truncation of tags by default. Previous versions of cryptog…
BACKWARDS INCOMPATIBLE: ~cryptography.hazmat.primitives.ciphers.modes.GCM no longer allows truncation of tags by default. Previous versions of cryptography allowed tags to be truncated by default, applications wishing to preserve this behavior (not recommended) can pass the min_tag_length argument.
Windows builds now statically link OpenSSL by default. When installing a wheel on Windows you no longer need to install OpenSSL separately. Windows users can switch between static and dynamic linking with an environment variable. See /installation for more details.
Added ~cryptography.hazmat.primitives.kdf.hkdf.HKDFExpand.
Added ~cryptography.hazmat.primitives.ciphers.modes.CFB8 support for ~cryptography.hazmat.primitives.ciphers.algorithms.AES and ~cryptography.hazmat.primitives.ciphers.algorithms.TripleDES on commoncrypto and openssl.
Added AES ~cryptography.hazmat.primitives.ciphers.modes.CTR support to the OpenSSL backend when linked against 0.9.8.
Added PKCS8SerializationBackend and TraditionalOpenSSLSerializationBackend support to openssl.
Added /hazmat/primitives/asymmetric/ec and EllipticCurveBackend.
Added ~cryptography.hazmat.primitives.ciphers.modes.ECB support for ~cryptography.hazmat.primitives.ciphers.algorithms.TripleDES on commoncrypto and openssl.
Deprecated the concrete RSAPrivateKey class in favor of backend specific providers of the cryptography.hazmat.primitives.asymmetric.rsa.RSAPrivateKey interface.
Deprecated the concrete RSAPublicKey in favor of backend specific providers of the cryptography.hazmat.primitives.asymmetric.rsa.RSAPublicKey interface.
Deprecated the concrete DSAPrivateKey class in favor of backend specific providers of the cryptography.hazmat.primitives.asymmetric.dsa.DSAPrivateKey interface.
Deprecated the concrete DSAPublicKey class in favor of backend specific providers of the cryptography.hazmat.primitives.asymmetric.dsa.DSAPublicKey interface.
Deprecated the concrete DSAParameters class in favor of backend specific providers of the cryptography.hazmat.primitives.asymmetric.dsa.DSAParameters interface.
Deprecated encrypt_rsa, decrypt_rsa, create_rsa_signature_ctx and create_rsa_verification_ctx on RSABackend.
Deprecated create_dsa_signature_ctx and create_dsa_verification_ctx on DSABackend.
BACKWARDS INCOMPATIBLE: GCM no longer allows truncation of tags by default. Previous versions of cryptography allowed tags to be truncated by default, applications wishing to preserve this behavior (not recommended) can pass the min_tag_length argument.
Windows builds now statically link OpenSSL by default. When installing a wheel on Windows you no longer need to install OpenSSL separately. Windows users can switch between static and dynamic linking with an environment variable. See Installation for more details.
Added HKDFExpand .
Added CFB8 support for AES and TripleDES on commoncrypto and openssl .
Added AES CTR support to the OpenSSL backend when linked against 0.9.8.
Added PKCS8SerializationBackend and TraditionalOpenSSLSerializationBackend support to openssl .
Added Elliptic curve cryptography and EllipticCurveBackend .
Added ECB support for TripleDES on commoncrypto and openssl .
Deprecated the concrete RSAPrivateKey class in favor of backend specific providers of the cryptography.hazmat.primitives.asymmetric.rsa.RSAPrivateKey interface.
Deprecated the concrete RSAPublicKey in favor of backend specific providers of the cryptography.hazmat.primitives.asymmetric.rsa.RSAPublicKey interface.
Deprecated the concrete DSAPrivateKey class in favor of backend specific providers of the cryptography.hazmat.primitives.asymmetric.dsa.DSAPrivateKey interface.
Deprecated the concrete DSAPublicKey class in favor of backend specific providers of the cryptography.hazmat.primitives.asymmetric.dsa.DSAPublicKey interface.
Deprecated the concrete DSAParameters class in favor of backend specific providers of the cryptography.hazmat.primitives.asymmetric.dsa.DSAParameters interface.
Deprecated encrypt_rsa , decrypt_rsa , create_rsa_signature_ctx and create_rsa_verification_ctx on RSABackend .
Deprecated create_dsa_signature_ctx and create_dsa_verification_ctx on DSABackend .
Deprecated salt_length on ~cryptography.hazmat.primitives.asymmetric.padding.MGF1 and added it to ~cryptography.hazmat.primitives.asymmetric.padding.P…
Deprecated salt_length on ~cryptography.hazmat.primitives.asymmetric.padding.MGF1 and added it to ~cryptography.hazmat.primitives.asymmetric.padding.PSS. It will be removed from MGF1 in two releases per our /api-stability policy.
Added SEED support.
Added ~cryptography.hazmat.primitives.cmac.CMAC.
Added decryption support to ~cryptography.hazmat.primitives.asymmetric.rsa.RSAPrivateKey and encryption support to ~cryptography.hazmat.primitives.asymmetric.rsa.RSAPublicKey.
Added signature support to ~cryptography.hazmat.primitives.asymmetric.dsa.DSAPrivateKey and verification support to ~cryptography.hazmat.primitives.asymmetric.dsa.DSAPublicKey.
Deprecated salt_length on MGF1 and added it to PSS . It will be removed from MGF1 in two releases per our API stability policy.
Added SEED support.
Added CMAC .
Added decryption support to RSAPrivateKey and encryption support to RSAPublicKey .
Added signature support to DSAPrivateKey and verification support to DSAPublicKey .
Added ~cryptography.hazmat.primitives.twofactor.hotp.HOTP.
Added ~cryptography.hazmat.primitives.twofactor.hotp.HOTP.
Added ~cryptography.hazmat.primitives.twofactor.totp.TOTP.
Added IDEA support.
Added signature support to ~cryptography.hazmat.primitives.asymmetric.rsa.RSAPrivateKey and verification support to ~cryptography.hazmat.primitives.asymmetric.rsa.RSAPublicKey.
Moved test vectors to the new cryptography_vectors package.
Added HOTP .
Added TOTP .
Added IDEA support.
Added signature support to RSAPrivateKey and verification support to RSAPublicKey .
Moved test vectors to the new cryptography_vectors package.
Removed a constant definition that was causing compilation problems with specific versions of OpenSSL.
Removed a constant definition that was causing compilation problems with specific versions of OpenSSL.
Fix a bug where importing cryptography from multiple paths could cause initialization to fail.
Fix a bug where importing cryptography from multiple paths could cause initialization to fail.
Removed register_cipher_adapter method from CipherBackend.
Added commoncrypto.
Added initial commoncrypto.
Removed register_cipher_adapter method from CipherBackend.
Added support for the OpenSSL backend under Windows.
Improved thread-safety for the OpenSSL backend.
Fixed compilation on systems where OpenSSL's ec.h header is not available, such as CentOS.
Added ~cryptography.hazmat.primitives.kdf.pbkdf2.PBKDF2HMAC.
Added ~cryptography.hazmat.primitives.kdf.hkdf.HKDF.
Added multibackend.
Set default random for openssl to the OS random engine.
Added CAST5 (CAST-128) support.
.. _as documented here: https://docs.rs/openssl/latest/openssl/#automatic .. _main: https://github.com/pyca/cryptography/ .. _cffi: https://cffi.readt
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