EzCrypto在JRuby中加密不一致(MRI可以)

我试图用ruby中的ezcrypto gem加密一些数据。在mri下运行时一切正常,但是在使用jruby运行相同的代码时,我得到了奇怪的结果。

执行以下操作 应该 通过重复调用产生相同的输出。

MRI输出:

irb(main):007:0> Base64.encode64(EzCrypto::Key.encrypt_with_password "password", "salt","Top secret should not be revealed")
=> "6KNkObMUfXzyPey+TOGFHbozsmj5bGYqKql2Qava7++j5Moz0Zi2MwRp/FEC\nkpqw\n"
irb(main):008:0> Base64.encode64(EzCrypto::Key.encrypt_with_password "password", "salt","Top secret should not be revealed")
=> "6KNkObMUfXzyPey+TOGFHbozsmj5bGYqKql2Qava7++j5Moz0Zi2MwRp/FEC\nkpqw\n"
irb(main):009:0> Base64.encode64(EzCrypto::Key.encrypt_with_password "password", "salt","Top secret should not be revealed")
=> "6KNkObMUfXzyPey+TOGFHbozsmj5bGYqKql2Qava7++j5Moz0Zi2MwRp/FEC\nkpqw\n"

这个输出可以很好地解密。

不过,从jruby,每次调用都会得到不同的输出:

irb(main):020:0> Base64.encode64(EzCrypto::Key.encrypt_with_password "password", "salt","Top secret should not be revealed")
=> "oX5JKZVkDbpbnrizI2bxkLVfQVfxayBAa0RbG+sfa9OUP1epzAyR7eDf92Bf\nVAiK\n"
irb(main):021:0> Base64.encode64(EzCrypto::Key.encrypt_with_password "password", "salt","Top secret should not be revealed")
=> "mmyKTtn78Dv3eiH2AET1olTkHNPMhtbiXth68Lqoph1nKkYyQH6cSWws/KI5\nwza0\n"
irb(main):022:0> Base64.encode64(EzCrypto::Key.encrypt_with_password "password", "salt","Top secret should not be revealed")
=> "pzDxS0p0CyDCkEY+QVyQKdgP1Of2ZeiNE06InS70ndkHnPwYOFmlH3h+xKXd\nmx54\n"

没有一个可以成功解密。

jruby中是否需要执行任何额外的配置步骤才能使其正常工作?