Class: SafeDb::Keypair

Inherits:
Object
  • Object
show all
Defined in:
lib/utils/keys/keypair.rb

Overview

This class creates and represents an Elliptic Curve cryptographic key. The generated key can then be comsumed via its various aspects like its ssh formatted public key and/or the pem formatted private key.

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Keypair

Generate an elliptic curve cryptographic keypair. After the key is generated, both the public and private keys can be retrieved through the accessors.



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# File 'lib/utils/keys/keypair.rb', line 108

def initialize

  @ec_keypair = OpenSSL::PKey::EC.new( Indices::ELLIPTIC_CURVE_KEY_TYPE )
  @ec_keypair.generate_key!

  log.info(x) { "An elliptic curve keypair has just been generated." }

end

Instance Method Details

#private_key_pem ⇒ String

Get the private key aspect of this elliptic curve cryptographic key in PEM format.

Returns:

  • (String) —

    the PEM formatted private key



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# File 'lib/utils/keys/keypair.rb', line 121

def private_key_pem()
  return @ec_keypair.to_pem()
end

#public_key_ssh ⇒ String

Get the public key aspect of this elliptic curve cryptographic key in the long line SSH format. This format states the key type which will be ecdsa-sha2-nistp384 followed by base64 encoded data.

The returned one line public key will likely contain forward slashes and possibly equal signs at the end of the string.

Returns:

  • (String) —

    the SSH formatted public key prefixed by the key type



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# File 'lib/utils/keys/keypair.rb', line 134

def public_key_ssh()
  require 'net/ssh'
  key_type = @ec_keypair.ssh_type()
  key_data = [ @ec_keypair.to_blob ].pack('m0')
  return "#{key_type} #{key_data}"
end