Class: Capsium::Protector

Inherits:
Object
  • Object
show all
Defined in:
lib/capsium/protector.rb

Instance Method Summary collapse

Constructor Details

#initialize(package, encryption_metadata = nil, digital_signature_metadata = nil) ⇒ Protector

Returns a new instance of Protector.



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# File 'lib/capsium/protector.rb', line 10

def initialize(package, encryption_metadata = nil,
digital_signature_metadata = nil)
  @package = package
  @encryption_metadata = encryption_metadata
  @digital_signature_metadata = digital_signature_metadata
end

Instance Method Details

#apply_encryption_and_sign ⇒ Object 



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# File 'lib/capsium/protector.rb', line 17

def apply_encryption_and_sign
  encrypted_file = apply_encryption if @encryption_metadata
  sign_package(encrypted_file) if @digital_signature_metadata
end

#verify_signature ⇒ Object 



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# File 'lib/capsium/protector.rb', line 22

def verify_signature
  signature_data = JSON.parse(File.read(signature_file_path))
  public_key = OpenSSL::PKey::RSA.new(File.read(public_key_path))
  digest = OpenSSL::Digest.new(signature_data["algorithm"])
  data = combined_data
  signature = Base64.decode64(signature_data["signature"])

  public_key.verify(digest, signature, data)
end