From fcbf63e62c627deae76c1b8cb8c0876c536ed811 Mon Sep 17 00:00:00 2001
From: Jari Vetoniemi <jari.vetoniemi@indooratlas.com>
Date: Mon, 16 Mar 2020 18:49:26 +0900
Subject: Fresh start

---
 jni/ruby/sample/openssl/cipher.rb | 54 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 jni/ruby/sample/openssl/cipher.rb

(limited to 'jni/ruby/sample/openssl/cipher.rb')

diff --git a/jni/ruby/sample/openssl/cipher.rb b/jni/ruby/sample/openssl/cipher.rb
new file mode 100644
index 0000000..58b10d6
--- /dev/null
+++ b/jni/ruby/sample/openssl/cipher.rb
@@ -0,0 +1,54 @@
+#!/usr/bin/env ruby
+require 'openssl'
+
+def crypt_by_password(alg, pass, salt, text)
+  puts "--Setup--"
+  puts %(cipher alg:    "#{alg}")
+  puts %(plain text:    "#{text}")
+  puts %(password:      "#{pass}")
+  puts %(salt:          "#{salt}")
+  puts
+
+  puts "--Encrypting--"
+  enc = OpenSSL::Cipher::Cipher.new(alg)
+  enc.encrypt
+  enc.pkcs5_keyivgen(pass, salt)
+  cipher =  enc.update(text)
+  cipher << enc.final
+  puts %(encrypted text: #{cipher.inspect})
+  puts
+
+  puts "--Decrypting--"
+  dec = OpenSSL::Cipher::Cipher.new(alg)
+  dec.decrypt
+  dec.pkcs5_keyivgen(pass, salt)
+  plain =  dec.update(cipher)
+  plain << dec.final
+  puts %(decrypted text: "#{plain}")
+  puts
+end
+
+def ciphers
+  ciphers = OpenSSL::Cipher.ciphers.sort
+  ciphers.each{|i|
+    if i.upcase != i && ciphers.include?(i.upcase)
+      ciphers.delete(i)
+    end
+  }
+  return ciphers
+end
+
+puts "Supported ciphers in #{OpenSSL::OPENSSL_VERSION}:"
+ciphers.each_with_index{|name, i|
+  printf("%-15s", name)
+  puts if (i + 1) % 5 == 0
+}
+puts
+puts
+
+alg  = ARGV.shift || ciphers.first
+pass = "secret password"
+salt = "8 octets"        # or nil
+text = "abcdefghijklmnopqrstuvwxyz"
+
+crypt_by_password(alg, pass, salt, text)
-- 
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