Class: SecurityClient::Algo

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

Instance Method Summary collapse

Instance Method Details

#decryptor(obj, key, iv) ⇒ Object

Raises:

  • (RuntimeError) 


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# File 'lib/security_client.rb', line 245

def decryptor(obj, key, iv)
  cipher = obj[:mode]
  raise RuntimeError, 'Invalid key length' if key.length != obj[:key_length]

  raise RuntimeError, 'Invalid initialization vector length' if (iv!= nil and iv.length != obj[:iv_length])
  cipher = obj[:mode]
  cipher.decrypt
  cipher.key = key
  cipher.iv = iv
  return cipher
end

#encryptor(obj, key, iv = nil) ⇒ Object

Raises:

  • (RuntimeError) 


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# File 'lib/security_client.rb', line 229

def encryptor(obj,key, iv=nil)
  # key : A byte string containing the key to be used with this encryption
  # If the caller specifies the initialization vector, it must be
  # the correct length and, if so, will be used. If it is not
  # specified, the function will generate a new one

  cipher = obj[:mode]
  raise RuntimeError, 'Invalid key length' if key.length != obj[:key_length]

  raise RuntimeError, 'Invalid initialization vector length' if (iv!= nil and iv.length != obj[:iv_length])
  cipher.encrypt
  cipher.key = key
  iv = cipher.random_iv
  return cipher, iv
end

#get_algo(name) ⇒ Object 



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# File 'lib/security_client.rb', line 225

def get_algo(name)
  set_algo[name]
end

#set_algo ⇒ Object 



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# File 'lib/security_client.rb', line 212

def set_algo
  @algorithm = {
    "aes-256-gcm"=>{
      id:0,
      algorithm: OpenSSL::Cipher::AES256,
      mode: OpenSSL::Cipher::AES256.new(:GCM),
      key_length: 32,
      iv_length: 12,
      tag_length: 16
    },
  }
end