190 id number storage

[entantoencuanto]

Closes #190

What does this PR do?

Allows to store an encrypted ID number as a new user verification type. The model makes use of a key identifier which value is expected to be defined in application secrets.

How should this be manually tested?

Define in config/secrets.yml a new secret using RSA public key algorithm for the value. To create a valid key use, for example:

OpenSSL::PKey::RSA.new(2048).public_key.to_pem

You can create a new id number verification calling:

verification = User::Verification::IdNumber.new(encryption_key: key_secret_identifier, id_number: id_number)

Once saved, verification will only store the id_number encrypted with the previously defined key. This value is accessible calling verification.encrypted_id_number

Does this PR changes any configuration file?

Not directly, but to create valid User::Verification::IdNumber instances at least a public key using RSA public key algorithm should be defined in config/secrets.yml and used in encryption_key attribute.

• new environment variable in .env.example?
• new entry in config/application.yml?
• new entry in config/secrets.yml?

(Changes in these files might need to update the role in Ansible)

[codecov-io]

Codecov Report

Merging #1269 into master will increase coverage by 0.06%.
The diff coverage is 97.05%.

@@            Coverage Diff             @@
##           master    #1269      +/-   ##
==========================================
+ Coverage   75.79%   75.86%   +0.06%     
==========================================
  Files         455      457       +2     
  Lines       12205    12238      +33     
==========================================
+ Hits         9251     9284      +33     
  Misses       2954     2954

Impacted Files	Coverage Δ
app/models/user.rb	100% <100%> (ø)	⬆️
app/models/user/verification.rb	92.3% <100%> (ø)	⬆️
lib/asymmetric_encryptor.rb	100% <100%> (ø)
app/models/user/verification/id_number.rb	95.45% <95.45%> (ø)
...pp/models/user/verification/census_verification.rb	100% <0%> (+4.16%)	⬆️

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[ferblape]

@entantoencuanto secrets.yml is commited and part of the repository. Sensitive information is stored in the environments file.

So could you update the PR with the following changes?

• update and commit secrets.yml referencing an environment variable
• update .env.example with the new variable
• update the environment variables document in docs/