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Version 3.0.0

Compatibility notes

  • OpenSSL 1.0.1 and Ruby 2.3-2.5 are no longer supported. [GitHub #396] [GitHub #466]

  • OpenSSL 3.0 support is added. It is the first major version bump from OpenSSL 1.1 and contains incompatible changes that affect Ruby/OpenSSL. Note that OpenSSL 3.0 support is preliminary and not all features are currently available: [GitHub #369]

    • Deprecate the ability to modify OpenSSL::PKey::PKey instances. OpenSSL 3.0 made EVP_PKEY structure immutable, and hence the following methods are not available when Ruby/OpenSSL is linked against OpenSSL 3.0. [GitHub #480]

      • OpenSSL::PKey::RSA#set_key, #set_factors, #set_crt_params
      • OpenSSL::PKey::DSA#set_pqg, #set_key
      • OpenSSL::PKey::DH#set_pqg, #set_key, #generate_key!
      • OpenSSL::PKey::EC#private_key=, #public_key=, #group=, #generate_key!

    • Deprecate OpenSSL::Engine. The ENGINE API has been deprecated in OpenSSL 3.0 in favor of the new "provider" concept and will be removed in a future version. [GitHub #481]

  • OpenSSL::SSL::SSLContext#tmp_ecdh_callback has been removed. It has been deprecated since v2.0.0 because it is incompatible with modern OpenSSL versions. [GitHub #394]

  • OpenSSL::SSL::SSLSocket#read and #write now raise OpenSSL::SSL::SSLError if called before a TLS connection is established. Historically, they read/wrote unencrypted data to the underlying socket directly in that case. [GitHub #9] [GitHub #469]

Notable changes

  • Enhance OpenSSL::PKey's common interface. [GitHub #370]

    • Key deserialization: Enhance OpenSSL::PKey.read to handle PEM encoding of DH parameters, which used to be only deserialized by OpenSSL::PKey::DH.new. [GitHub #328]
    • Key generation: Add OpenSSL::PKey.generate_parameters and OpenSSL::PKey.generate_key. [GitHub #329]
    • Public key signing: Enhance OpenSSL::PKey::PKey#sign and #verify to use the new EVP_DigestSign() family to enable PureEdDSA support on OpenSSL 1.1.1 or later. They also now take optional algorithm-specific parameters for more control. [GitHub #329]
    • Low-level public key signing and verification: Add OpenSSL::PKey::PKey#sign_raw, #verify_raw, and #verify_recover. [GitHub #382]
    • Public key encryption: Add OpenSSL::PKey::PKey#encrypt and #decrypt. [GitHub #382]
    • Key agreement: Add OpenSSL::PKey::PKey#derive. [GitHub #329]
    • Key comparison: Add OpenSSL::PKey::PKey#compare? to conveniently check that two keys have common parameters and a public key. [GitHub #383]

  • Add OpenSSL::BN#set_flags and #get_flags. This can be used in combination with OpenSSL::BN::CONSTTIME to force constant-time computation. [GitHub #417]

  • Add OpenSSL::BN#abs to get the absolute value of the BIGNUM. [GitHub #430]

  • Add OpenSSL::SSL::SSLSocket#getbyte. [GitHub #438]

  • Add OpenSSL::SSL::SSLContext#tmp_dh=. [GitHub #459]

  • Add OpenSSL::X509::Certificate.load to load a PEM-encoded and concatenated list of X.509 certificates at once. [GitHub #441]

  • Change OpenSSL::X509::Certificate.new to attempt to deserialize the given string first as DER encoding first and then as PEM encoding to ensure the round-trip consistency. [GitHub #442]

  • Update various part of the code base to use the modern API. No breaking changes are intended with this. This includes:

Version 2.2.1

Merged changes in 2.1.3. Additionally, the following issues are fixed by this release.

Bug fixes

  • Fix crash in OpenSSL::Timestamp::{Request,Response,TokenInfo}.new when invalid arguments are given. [GitHub #407]
  • Fix OpenSSL::Timestamp::Factory#create_timestamp with LibreSSL on platforms where time_t has a different size from long. [GitHub #454]

Version 2.2.0

Compatibility notes

  • Remove unsupported MDC2, DSS, DSS1, and SHA algorithms.
  • Remove OpenSSL::PKCS7::SignerInfo#name alias for #issuer. [GitHub #266]
  • Deprecate OpenSSL::Config#add_value and #[]= for future removal. [GitHub #322]

Notable changes

  • Change default OpenSSL::SSL::SSLServer#listen backlog argument from 5 to Socket::SOMAXCONN. [GitHub #286]
  • Make OpenSSL::HMAC#== use a timing safe string comparison. [GitHub #284]
  • Add support for SHA3 and BLAKE digests. [GitHub #282]
  • Add OpenSSL::SSL::SSLSocket.open for opening a TCPSocket and returning an OpenSSL::SSL::SSLSocket for it. [GitHub #225]
  • Support marshalling of OpenSSL::X509 and OpenSSL::PKey objects. [GitHub #281] [GitHub #363]
  • Add OpenSSL.secure_compare for timing safe string comparison for strings of possibly unequal length. [GitHub #280]
  • Add OpenSSL.fixed_length_secure_compare for timing safe string comparison for strings of equal length. [GitHub #269]
  • Add OpenSSL::SSL::SSLSocket#{finished_message,peer_finished_message} for last finished message sent and received. [GitHub #250]
  • Add OpenSSL::Timestamp module for handing timestamp requests and responses. [GitHub #204]
  • Add helper methods for OpenSSL::X509::Certificate: find_extension, subject_key_identifier, authority_key_identifier, crl_uris, ca_issuer_uris and ocsp_uris, and for OpenSSL::X509::CRL: find_extension and subject_key_identifier. [GitHub #260] [GitHub #275] [GitHub #293]
  • Add OpenSSL::ECPoint#add for performing elliptic curve point addition. [GitHub #261]
  • Make OpenSSL::PKey::RSA#{export,to_der} check key, factors, and crt_params to do proper private key serialization. [GitHub #258]
  • Add OpenSSL::SSL::{SSLSocket,SSLServer}#fileno, returning the underlying socket file descriptor number. [GitHub #247]
  • Support client certificates with TLS 1.3, and support post-handshake authentication with OpenSSL 1.1.1+. [GitHub #239]
  • Add OpenSSL::ASN1::ObjectId#== for equality testing.
  • Add OpenSSL::X509::Extension#value_der for the raw value of the extension. [GitHub #234]
  • Significantly reduce allocated memory in OpenSSL::Buffering#do_write. [GitHub #212]
  • Ensure all valid IPv6 addresses are considered valid as elements of subjectAlternativeName in certificates. [GitHub #185]
  • Allow recipient's certificate to be omitted in PCKS7#decrypt. [GitHub #183]
  • Add support for reading keys in PKCS #8 format and export via instance methods added to OpenSSL::PKey classes: private_to_der, private_to_pem, public_to_der and public_to_pem. [GitHub #297]

Version 2.1.3

Bug fixes

  • Fix deprecation warnings on Ruby 3.0.
  • Add ".include" directive support in OpenSSL::Config. [GitHub #216]
  • Fix handling of IPv6 address SANs. [GitHub #185]
  • Hostname verification failure with OpenSSL::SSL::SSLContext#verify_hostname= sets a proper error code. [GitHub #350]
  • Fix crash with OpenSSL::BN.new(nil, 2). [Bug #15760]
  • OpenSSL::SSL::SSLSocket#sys{read,write} prevent internal string buffers from being modified by another thread. [GitHub #453]
  • Fix misuse of input record separator in OpenSSL::Buffering where it was for output.
  • Fix wrong integer casting in OpenSSL::PKey::EC#dsa_verify_asn1. [GitHub #460]
  • extconf.rb explicitly checks that OpenSSL's version number is 1.0.1 or newer but also less than 3.0. Ruby/OpenSSL v2.1.x and v2.2.x will not support OpenSSL 3.0 API. [GitHub #458]
  • Activate digest gem correctly. digest library could go into an inconsistent state if there are multiple versions of digest is installed and openssl is required before digest. [GitHub #463]
  • Fix GC.compact compatibility. [GitHub #464] [GitHub #465]

Version 2.1.2

Merged changes in 2.0.9.

Version 2.1.1

Merged changes in 2.0.8.

Version 2.1.0

Notable changes

  • Support for OpenSSL versions before 1.0.1 and LibreSSL versions before 2.5 is removed. [GitHub #86]
  • OpenSSL::BN#negative?, #+@, and #-@ are added.
  • OpenSSL::SSL::SSLSocket#connect raises a more informative exception when certificate verification fails. [GitHub #99]
  • OpenSSL::KDF module is newly added. In addition to PBKDF2-HMAC that has moved from OpenSSL::PKCS5, scrypt and HKDF are supported. [GitHub #109] [GitHub #173]
  • OpenSSL.fips_mode is added. We had the setter, but not the getter. [GitHub #125]
  • OpenSSL::OCSP::Request#signed? is added.
  • OpenSSL::ASN1 handles the indefinite length form better. OpenSSL::ASN1.decode no longer wrongly treats the end-of-contents octets as part of the content. OpenSSL::ASN1::ASN1Data#infinite_length is renamed to #indefinite_length. [GitHub #98]
  • OpenSSL::X509::Name#add_entry now accepts two additional keyword arguments 'loc' and 'set'. [GitHub #94]
  • OpenSSL::SSL::SSLContext#min_version= and #max_version= are added to replace #ssl_version= that was built on top of the deprecated OpenSSL C API. Use of that method and the constant OpenSSL::SSL::SSLContext::METHODS is now deprecated. [GitHub #142]
  • OpenSSL::X509::Name#to_utf8 is added. [GitHub #26] [GitHub #143]
  • OpenSSL::X509::{Extension,Attribute,Certificate,CRL,Revoked,Request} can be compared with == operator. [GitHub #161]
  • TLS Fallback Signaling Cipher Suite Value (SCSV) support is added. [GitHub #165]
  • Build failure with OpenSSL 1.1 built with no-deprecated is fixed. [GitHub #160]
  • OpenSSL::Buffering#write accepts an arbitrary number of arguments. [Feature #9323] [GitHub #162]
  • OpenSSL::PKey::RSA#sign_pss and #verify_pss are added. They perform RSA-PSS signature and verification. [GitHub #75] [GitHub #76] [GitHub #169]
  • OpenSSL::SSL::SSLContext#add_certificate is added. [GitHub #167]
  • OpenSSL::PKey::EC::Point#to_octet_string is added. OpenSSL::PKey::EC::Point.new can now take String as the second argument. [GitHub #177]

Version 2.0.9

Security fixes

Bug fixes

Version 2.0.8

Bug fixes

Version 2.0.7

Bug fixes

  • OpenSSL::Cipher#auth_data= could segfault if called against a non-AEAD cipher. [Bug #14024]
  • OpenSSL::X509::Certificate#public_key= (and similar methods) could segfault when an instance of OpenSSL::PKey::PKey with no public key components is passed. [Bug #14087] [GitHub #168]

Version 2.0.6

Bug fixes

  • The session_remove_cb set to an OpenSSL::SSL::SSLContext is no longer called during GC.
  • A possible deadlock in OpenSSL::SSL::SSLSocket#sysread is fixed. [GitHub #139]
  • OpenSSL::BN#hash could return an unnormalized fixnum value on Windows. [Bug #13877]
  • OpenSSL::SSL::SSLSocket#sysread and #sysread_nonblock set the length of the destination buffer String to 0 on error. [GitHub #153]
  • Possible deadlock is fixed. This happened only when built with older versions of OpenSSL (before 1.1.0) or LibreSSL. [GitHub #155]

Version 2.0.5

Bug fixes

  • Reading a PEM/DER-encoded private key or certificate from an IO object did not work properly on mswin platforms. [ruby/openssl#128]
  • Broken length check in the PEM passphrase callback is fixed.
  • It failed to compile when OpenSSL is configured without TLS 1.0 support.

Version 2.0.4

Bug fixes

  • It now compiles with LibreSSL without renaming on Windows (mswin).
  • A workaround for the error queue leak of X509_load_cert_crl_file() that causes random errors is added. [Bug #11033]

Version 2.0.3

Bug fixes

  • OpenSSL::ASN1::Constructive#each which was broken by 2.0.0 is fixed. [ruby/openssl#96]
  • Fixed build with static OpenSSL libraries on Windows. [Bug #13080]
  • OpenSSL::X509::Name#eql? which was broken by 2.0.0 is fixed.

Version 2.0.2

Bug fixes

  • Fix build with early 0.9.8 series which did not have SSL_CTX_clear_options(). [ruby-core:78693]

Version 2.0.1

Bug fixes

Version 2.0.0

This is the first release of openssl gem, formerly a standard library of Ruby, ext/openssl. This is the successor of the version included in Ruby 2.3.

Compatibility notes

  • Support for OpenSSL version 0.9.6 and 0.9.7 is completely removed. openssl gem still works with OpenSSL 0.9.8, but users are strongly encouraged to upgrade to at least 1.0.1, as OpenSSL < 1.0.1 will not receive any security fixes from the OpenSSL development team.

Supported platforms

  • OpenSSL 1.0.0, 1.0.1, 1.0.2, 1.1.0
  • OpenSSL < 0.9.8 is no longer supported.
  • LibreSSL 2.3, 2.4, 2.5
  • Ruby 2.3, 2.4

Notable changes

  • Add support for OpenSSL 1.1.0. [Feature #12324]

  • Add support for LibreSSL

  • OpenSSL::Cipher

    • OpenSSL::Cipher#key= and #iv= reject too long inputs. They used to truncate silently. [Bug #12561]

    • OpenSSL::Cipher#iv_len= is added. It allows changing IV (nonce) length if using AEAD ciphers. [Bug #8667], [Bug #10420], [GH ruby/ruby#569], [GH ruby/openssl#58]

    • OpenSSL::Cipher#auth_tag_len= is added. This sets the authentication tag length to be generated by an AEAD cipher.

  • OpenSSL::OCSP

    • Accessor methods are added to OpenSSL::OCSP::CertificateId. [Feature #7181]

    • OpenSSL::OCSP::Request and BasicResponse can be signed with non-SHA-1 hash algorithm. [Feature #11552]

    • OpenSSL::OCSP::CertificateId and BasicResponse can be encoded into DER.

    • A new class OpenSSL::OCSP::SingleResponse is added for convenience.

    • OpenSSL::OCSP::BasicResponse#add_status accepts absolute times. They used to accept only relative seconds from the current time.

  • OpenSSL::PKey

    • OpenSSL::PKey::EC follows the general PKey interface. [Bug #6567]

    • OpenSSL::PKey.read raises OpenSSL::PKey::PKeyError instead of ArgumentError for consistency with OpenSSL::PKey::{DH,DSA,RSA,EC}#new. [Bug #11774], [GH ruby/openssl#55]

    • OpenSSL::PKey::EC::Group retrieved by OpenSSL::PKey::EC#group is no longer linked with the EC key. Modifications to the EC::Group have no effect on the key. [GH ruby/openssl#71]

    • OpenSSL::PKey::EC::Point#to_bn allows specifying the point conversion form by the optional argument.

  • OpenSSL::SSL

    • OpenSSL::SSL::SSLSocket#tmp_key is added. A client can call it after the connection is established to retrieve the ephemeral key. [GH ruby/ruby#1318]

    • The automatic ephemeral ECDH curve selection is enabled by default when built with OpenSSL >= 1.0.2 or LibreSSL.

    • OpenSSL::SSL::SSLContext#security_level= is added. You can set the "security level" of the SSL context. This is effective only when built with OpenSSL 1.1.0.

    • A new option 'verify_hostname' is added to OpenSSL::SSL::SSLContext. When it is enabled, and the SNI hostname is also set, the hostname verification on the server certificate is automatically performed. It is now enabled by OpenSSL::SSL::SSLContext#set_params. [GH ruby/openssl#60]

Removals

  • OpenSSL::Engine

    • OpenSSL::Engine.cleanup does nothing when built with OpenSSL 1.1.0.

  • OpenSSL::SSL

    • OpenSSL::PKey::DH::DEFAULT_512 is removed. Hence servers no longer use 512-bit DH group by default. It is considered too weak nowadays. [Bug #11968], [GH ruby/ruby#1196]

    • RC4 cipher suites are removed from OpenSSL::SSL::SSLContext::DEFAULT_PARAMS. RC4 is now considered to be weak. [GH ruby/openssl#50]

Deprecations

  • OpenSSL::PKey

    • OpenSSL::PKey::RSA#n=, #e=, #d=, #p=, #q=, #dmp1=, #dmq1=, #iqmp=, OpenSSL::PKey::DSA#p=, #q=, #g=, #priv_key=, #pub_key=, OpenSSL::PKey::DH#p=, #g=, #priv_key= and #pub_key= are deprecated. They are disabled when built with OpenSSL 1.1.0, due to its API change. Instead, OpenSSL::PKey::RSA#set_key, #set_factors, #set_crt_params, OpenSSL::PKey::DSA#set_pqg, #set_key, OpenSSL::PKey::DH#set_pqg and #set_key are added.

  • OpenSSL::Random

    • OpenSSL::Random.pseudo_bytes is deprecated, and not defined when built with OpenSSL 1.1.0. Use OpenSSL::Random.random_bytes instead.

  • OpenSSL::SSL

    • OpenSSL::SSL::SSLContext#tmp_ecdh_callback is deprecated, as the underlying API SSL_CTX_set_tmp_ecdh_callback() is removed in OpenSSL 1.1.0. It was first added in Ruby 2.3.0. To specify the curve to be used in ephemeral ECDH, use OpenSSL::SSL::SSLContext#ecdh_curves=. The automatic curve selection is also now enabled by default when built with a capable OpenSSL.