Class: Lite::Encryption::Key

Inherits:
Object
  • Object
show all
Defined in:
lib/lite/encryption/key.rb

Constant Summary collapse

CIPHER = 
OpenSSL::Cipher.new('aes-256-gcm').freeze
LENGTHS = 
{
  iv: CIPHER.iv_len,
  key: CIPHER.key_len,
  password: 16,
  salt: CIPHER.key_len
}.freeze

Class Method Summary collapse

Class Method Details

.generate_iv ⇒ Object 



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# File 'lib/lite/encryption/key.rb', line 19

def generate_iv
  SecureRandom.random_bytes(LENGTHS[:iv])
end

.generate_key ⇒ Object 



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# File 'lib/lite/encryption/key.rb', line 23

def generate_key
  generator = ActiveSupport::KeyGenerator.new(generate_password)
  generator.generate_key(generate_salt, LENGTHS[:key])
end

.generate_password ⇒ Object 



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# File 'lib/lite/encryption/key.rb', line 28

def generate_password
  SecureRandom.hex(LENGTHS[:password])
end

.generate_salt ⇒ Object 



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# File 'lib/lite/encryption/key.rb', line 32

def generate_salt
  SecureRandom.random_bytes(LENGTHS[:salt])
end