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| 1 | +Version 3.0.0 |
| 2 | +============= |
| 3 | + |
| 4 | +Compatibility notes |
| 5 | +------------------- |
| 6 | + |
| 7 | +* OpenSSL 1.0.1 and Ruby 2.3-2.5 are no longer supported. |
| 8 | + [[GitHub #396]](https://github.com/ruby/openssl/pull/396) |
| 9 | + [[GitHub #466]](https://github.com/ruby/openssl/pull/466) |
| 10 | + |
| 11 | +* OpenSSL 3.0 support is added. It is the first major version bump from OpenSSL |
| 12 | + 1.1 and contains incompatible changes that affect Ruby/OpenSSL. |
| 13 | + Note that OpenSSL 3.0 support is preliminary and not all features are |
| 14 | + currently available: |
| 15 | + [[GitHub #369]](https://github.com/ruby/openssl/issues/369) |
| 16 | + |
| 17 | + - Deprecate the ability to modify `OpenSSL::PKey::PKey` instances. OpenSSL 3.0 |
| 18 | + made EVP_PKEY structure immutable, and hence the following methods are not |
| 19 | + available when Ruby/OpenSSL is linked against OpenSSL 3.0. |
| 20 | + [[GitHub #480]](https://github.com/ruby/openssl/pull/480) |
| 21 | + |
| 22 | + - `OpenSSL::PKey::RSA#set_key`, `#set_factors`, `#set_crt_params` |
| 23 | + - `OpenSSL::PKey::DSA#set_pqg`, `#set_key` |
| 24 | + - `OpenSSL::PKey::DH#set_pqg`, `#set_key`, `#generate_key!` |
| 25 | + - `OpenSSL::PKey::EC#private_key=`, `#public_key=`, `#group=`, `#generate_key!` |
| 26 | + |
| 27 | + - Deprecate `OpenSSL::Engine`. The ENGINE API has been deprecated in OpenSSL 3.0 |
| 28 | + in favor of the new "provider" concept and will be removed in a future |
| 29 | + version. |
| 30 | + [[GitHub #481]](https://github.com/ruby/openssl/pull/481) |
| 31 | + |
| 32 | +* `OpenSSL::SSL::SSLContext#tmp_ecdh_callback` has been removed. It has been |
| 33 | + deprecated since v2.0.0 because it is incompatible with modern OpenSSL |
| 34 | + versions. |
| 35 | + [[GitHub #394]](https://github.com/ruby/openssl/pull/394) |
| 36 | + |
| 37 | +* `OpenSSL::SSL::SSLSocket#read` and `#write` now raise `OpenSSL::SSL::SSLError` |
| 38 | + if called before a TLS connection is established. Historically, they |
| 39 | + read/wrote unencrypted data to the underlying socket directly in that case. |
| 40 | + [[GitHub #9]](https://github.com/ruby/openssl/issues/9) |
| 41 | + [[GitHub #469]](https://github.com/ruby/openssl/pull/469) |
| 42 | + |
| 43 | + |
| 44 | +Notable changes |
| 45 | +--------------- |
| 46 | + |
| 47 | +* Enhance OpenSSL::PKey's common interface. |
| 48 | + [[GitHub #370]](https://github.com/ruby/openssl/issues/370) |
| 49 | + |
| 50 | + - Key deserialization: Enhance `OpenSSL::PKey.read` to handle PEM encoding of |
| 51 | + DH parameters, which used to be only deserialized by `OpenSSL::PKey::DH.new`. |
| 52 | + [[GitHub #328]](https://github.com/ruby/openssl/issues/328) |
| 53 | + - Key generation: Add `OpenSSL::PKey.generate_parameters` and |
| 54 | + `OpenSSL::PKey.generate_key`. |
| 55 | + [[GitHub #329]](https://github.com/ruby/openssl/issues/329) |
| 56 | + - Public key signing: Enhance `OpenSSL::PKey::PKey#sign` and `#verify` to use |
| 57 | + the new EVP_DigestSign() family to enable PureEdDSA support on OpenSSL 1.1.1 |
| 58 | + or later. They also now take optional algorithm-specific parameters for more |
| 59 | + control. |
| 60 | + [[GitHub #329]](https://github.com/ruby/openssl/issues/329) |
| 61 | + - Low-level public key signing and verification: Add |
| 62 | + `OpenSSL::PKey::PKey#sign_raw`, `#verify_raw`, and `#verify_recover`. |
| 63 | + [[GitHub #382]](https://github.com/ruby/openssl/issues/382) |
| 64 | + - Public key encryption: Add `OpenSSL::PKey::PKey#encrypt` and `#decrypt`. |
| 65 | + [[GitHub #382]](https://github.com/ruby/openssl/issues/382) |
| 66 | + - Key agreement: Add `OpenSSL::PKey::PKey#derive`. |
| 67 | + [[GitHub #329]](https://github.com/ruby/openssl/issues/329) |
| 68 | + - Key comparison: Add `OpenSSL::PKey::PKey#compare?` to conveniently check |
| 69 | + that two keys have common parameters and a public key. |
| 70 | + [[GitHub #383]](https://github.com/ruby/openssl/issues/383) |
| 71 | + |
| 72 | +* Add `OpenSSL::BN#set_flags` and `#get_flags`. This can be used in combination |
| 73 | + with `OpenSSL::BN::CONSTTIME` to force constant-time computation. |
| 74 | + [[GitHub #417]](https://github.com/ruby/openssl/issues/417) |
| 75 | + |
| 76 | +* Add `OpenSSL::BN#abs` to get the absolute value of the BIGNUM. |
| 77 | + [[GitHub #430]](https://github.com/ruby/openssl/issues/430) |
| 78 | + |
| 79 | +* Add `OpenSSL::SSL::SSLSocket#getbyte`. |
| 80 | + [[GitHub #438]](https://github.com/ruby/openssl/issues/438) |
| 81 | + |
| 82 | +* Add `OpenSSL::SSL::SSLContext#tmp_dh=`. |
| 83 | + [[GitHub #459]](https://github.com/ruby/openssl/pull/459) |
| 84 | + |
| 85 | +* Add `OpenSSL::X509::Certificate.load` to load a PEM-encoded and concatenated |
| 86 | + list of X.509 certificates at once. |
| 87 | + [[GitHub #441]](https://github.com/ruby/openssl/pull/441) |
| 88 | + |
| 89 | +* Change `OpenSSL::X509::Certificate.new` to attempt to deserialize the given |
| 90 | + string first as DER encoding first and then as PEM encoding to ensure the |
| 91 | + round-trip consistency. |
| 92 | + [[GitHub #442]](https://github.com/ruby/openssl/pull/442) |
| 93 | + |
| 94 | +* Update various part of the code base to use the modern API. No breaking |
| 95 | + changes are intended with this. This includes: |
| 96 | + |
| 97 | + - `OpenSSL::HMAC` uses the EVP API. |
| 98 | + [[GitHub #371]](https://github.com/ruby/openssl/issues/371) |
| 99 | + - `OpenSSL::Config` uses native OpenSSL API to parse config files. |
| 100 | + [[GitHub #342]](https://github.com/ruby/openssl/issues/342) |
| 101 | + |
| 102 | + |
1 | 103 | Version 2.2.1
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2 | 104 | =============
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3 | 105 |
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