Change log

This gem follows Semantic Versioning 2.0.0. All classes and public methods are part of the public API.

0.4.0

Released on 2023-06-20

• Add support for OpenSSL 3.0.
• Remove Crypt.private_key_from_hex method.
  • Users can still utilize OpenSSL::PKey::EC.new to construct a PKey.
• Crypt.public_key_from_hex now raises ArgumentError on an invalid key, rather than an OpenSSL::PKey::EC::Point::Error.
• Explicitly require 'stringio' (thanks thekuwayama!).

0.3.0

Released on 2018-04-22

• Prevent benign malleability, as suggested in sec1-v2 page 97.
  • The ECIES process is modified to prevent benign malleability by including the ephemeral public key as an input to the KDF.
  • All encrypted output generated with previous versions cannot be decrypted with this version, and older versions cannot decrypt output generated with this version.
  • The choice was made to simply break compatibility early in this library's life, rather than add an extra configuration parameter that should almost always be unused.
• Add Crypt.public_key_from_hex method.
• Add Crypt.private_key_from_hex method.
• Remove support for hex-encoded keys in Crypt#encrypt and Crypt#decrypt methods. The above *_from_hex helper methods can be used instead.
• Remove ec_group option from Crypt constructor.
• Add Crypt#to_s method.

0.2.0

Released on 2018-04-19

• Add support for hex-encoded keys in Crypt#encrypt and Crypt#decrypt methods.
• Add new option ec_group in Crypt constructor.

0.1.0

Released on 2018-04-18

All core functionality is implemented:

• ECIES::Crypt class:
  • encrypt method
  • decrypt method
  • kdf method
  • DIGESTS constant
  • CIPHERS constant
  • IV constant