Method: PathgraphEncoding::PrivateKey.to_der

Defined in:
lib/pathgraph_encoding.rb

.to_der(key) ⇒ Object

Compute DER-formatted bytes array of a pathgraph private key.

Parameters:

key

A private key to encode.

Returns:

A byte array representing the private key specified.



49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
 
# File 'lib/pathgraph_encoding.rb', line 49

def self.to_der(key)
  n = OpenSSL::ASN1::Integer.new(key[:n])
  pi = OpenSSL::ASN1::Sequence.new(
    key[:pi].map do |p|
      arr = p.map { |x| OpenSSL::ASN1::Integer.new(x) }
      OpenSSL::ASN1::Sequence.new(arr)
    end
  )
  privateKey = OpenSSL::ASN1::Sequence.new([n,pi])

  version = OpenSSL::ASN1::PrintableString.new("0.0.1")
  instance = OpenSSL::ASN1::Sequence.new([version,privateKey])

  instance.to_der
end