Class: RightScale::RsaKeyPair

Inherits:
Object
  • Object
show all
Defined in:
lib/right_agent/security/rsa_key_pair.rb

Overview

Allows generating RSA key pairs and extracting public key component Note: Creating a RSA key pair can take a fair amount of time (seconds)

Constant Summary collapse

DEFAULT_LENGTH = 
2048

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(length = DEFAULT_LENGTH) ⇒ RsaKeyPair

Create new RSA key pair using ‘length’ bits



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# File 'lib/right_agent/security/rsa_key_pair.rb', line 35

def initialize(length = DEFAULT_LENGTH)
  @raw_key = OpenSSL::PKey::RSA.generate(length)
end

Instance Attribute Details

#raw_key ⇒ Object (readonly)

Underlying OpenSSL keys



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# File 'lib/right_agent/security/rsa_key_pair.rb', line 32

def raw_key
  @raw_key
end

Class Method Details

.from_data(data) ⇒ Object

Load key pair previously serialized via ‘data’



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# File 'lib/right_agent/security/rsa_key_pair.rb', line 56

def self.from_data(data)
  res = RsaKeyPair.allocate
  res.instance_variable_set(:@raw_key, OpenSSL::PKey::RSA.new(data)) 
  res
end

.load(file) ⇒ Object

Load key from file



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# File 'lib/right_agent/security/rsa_key_pair.rb', line 63

def self.load(file)
  from_data(File.read(file))
end

Instance Method Details

#data ⇒ Object Also known as: to_s

Key material in PEM format



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# File 'lib/right_agent/security/rsa_key_pair.rb', line 50

def data
  raw_key.to_pem
end

#has_private? ⇒ Boolean

Does key pair include private key?

Returns:

  • (Boolean) 


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# File 'lib/right_agent/security/rsa_key_pair.rb', line 40

def has_private?
  raw_key.private?
end

#save(file) ⇒ Object

Save key to file in PEM format



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# File 'lib/right_agent/security/rsa_key_pair.rb', line 68

def save(file)
  File.open(file, "w") do |f|
    f.write(@raw_key.to_pem)
  end
end

#to_public ⇒ Object

New RsaKeyPair instance with identical public key but no private key



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# File 'lib/right_agent/security/rsa_key_pair.rb', line 45

def to_public
  RsaKeyPair.from_data(raw_key.public_key.to_pem)
end