Module: Checksign

Includes:
Origami
Defined in:
lib/Sign.rb

Overview

require ‘origami’

Constant Summary collapse

OUTPUTFILE =

Code below is based on documentation available on www.ruby-doc.org/stdlib-1.9.3/libdoc/openssl/rdoc/OpenSSL.html

"test.pdf"

Class Method Summary collapse

Class Method Details

.Signpdf ⇒ Object

for PDF Sign



21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
 
# File 'lib/Sign.rb', line 21

def self.Signpdf

key = OpenSSL::PKey::RSA.new 2048

open 'private_key.pem', 'w' do |io| io.write key.to_pem end
open 'public_key.pem', 'w' do |io| io.write key.public_key.to_pem end

cipher = OpenSSL::Cipher::Cipher.new 'AES-128-CBC'
pass_phrase = 'Origami rocks'

key_secure = key.export cipher, pass_phrase

open 'private_key.pem', 'w' do |io|
  io.write key_secure
end

#Create the certificate

name = OpenSSL::X509::Name.parse 'CN=nobody/DC=example'

cert = OpenSSL::X509::Certificate.new
cert.version = 2
cert.serial = 0
cert.not_before = Time.now
cert.not_after = Time.now + 3600

cert.public_key = key.public_key
cert.subject = name


contents = ContentStream.new.setFilter(:FlateDecode)
contents.write OUTPUTFILE,:x => 350, :y => 750, :rendering => Text::Rendering::STROKE, :size => 30

pdf = PDF.read('kimbo.pdf')


# Open certificate files

sigannot = Annotation::Widget::Signature.new
sigannot.Rect = Rectangle[:llx => 89.0, :lly => 386.0, :urx => 190.0, :ury => 353.0]

#page.add_annot(sigannot)

# Sign the PDF with the specified keys
pdf.sign(cert, key,
         :method => 'adbe.pkcs7.sha1',
         :annotation => sigannot,
         :location => 'India',
         # :contact => nil,
         :reason => 'Proof of Concept'
)

#  puts pdf

# Save the resulting file
pdf.save(OUTPUTFILE)

 
end

.Verifypdf ⇒ Object

for PDF verification



83
84
85
 
# File 'lib/Sign.rb', line 83

def self.Verifypdf

end