Changeset 362 for tools/ruby-script-encrypt

Timestamp:

02/20/10 22:16:37 (7 months ago)

Author:

henning

Message:

ruby-script-encrypt: de-obfusciated. script does not work if input file size >= 32 byte :(

File:

• tools/ruby-script-encrypt (modified) (2 diffs)

tools/ruby-script-encrypt

@@ -2 +2 @@
 # vi: set fileencoding=utf-8 :
 
-# XXX Something does not work, debug anyone? ;)
+# XXX Broken if input file size >= 32 byte. Should be connected to AES
+#     block size. Debug anyone?
 
 =begin
@@ -13 +14 @@
 =end
 
-ARGV[0] ? nil:($stderr<<"#{$0} <script>\n";exit);%w[base64 openssl].each{
-|r| require r};def a(m,k,t);(a=OpenSSL::Cipher::Cipher.new('aes-256-cbc')
-.send(m)).key=Digest::SHA256.digest(k);a.update(t)<<a.final;end;puts DATA
-.readlines,Base64.encode64(a :encrypt,:swordfish,File.new(ARGV[0])
-.readlines.join)
+ARGV[0] ? nil:($stderr<<"#{$0} <script>\n";exit)
+%w[base64 openssl].each{|r| require r}
+def a(m,k,t)
+        (a=OpenSSL::Cipher::Cipher.new('aes-256-cbc').send(m)).key=Digest::SHA256.digest(k)
+        a.update(t)<<a.final
+end
+puts DATA.readlines,Base64.encode64(a :encrypt,:swordfish,File.new(ARGV[0]).readlines.join)
 __END__
 #!/usr/bin/env ruby
-%w[base64 openssl].each {|r| require r};def a(m,k,t);(a=
-OpenSSL::Cipher::Cipher.new('aes-256-cbc').send(m)).key=Digest::SHA256
-.digest(k);a.update(t.unpack('m')[0])<<a.final;end;eval a :decrypt,
-:swordfish,DATA.readlines.to_s
+%w[base64 openssl].each {|r| require r}
+def a(m,k,t)
+        (a=OpenSSL::Cipher::Cipher.new('aes-256-cbc').send(m)).key=Digest::SHA256.digest(k)
+        a.update(t.unpack('m')[0])<<a.final
+end
+eval a :decrypt,:swordfish,DATA.readlines.to_s
 __END__