MOD: moving away from Exiv2, and towards my own binary code

docs/README_DSN

@@ -12,11 +12,15 @@
 3) Digital Signature
   a. generate new public keys
   b. sign hash data with priv key
-4) Write new PicSeal file
+4) Write new PicSeal Public file
   a. write encrypted original metadata
   b. write PicSeal metadata
     i. write JSON
   b. write image data
+5) Write new PicSeal Private file
+  a. create thumbnail (smaller files)
+  b. write PicSeal metadata (JSON)
+  c. write image data
 
 
 [[ PicSeal Metadata ]]

libs/img_exif.py

@@ -1,6 +1,9 @@
 #
+# DEPRECATED
 #
-#
+# ditching this for my own custom code
+# uses GExiv2, and the C to Python bindings. but pain in the ass to install and config
+#   very limited read/wriging...cannot create a new application comment block. writing my own
 import logging
 import json
 import gi

picseal.py

@@ -7,7 +7,6 @@ import logging
 from shutil import copyfile
 #from subprocess import Popen, PIPE, check_call
 from libs.crypto_pub import Signature
-from libs.img_exif import ImgExif
 from libs.toolbox import Toolbox
 from libs.jpg_tools import JpgTools
 
@@ -34,17 +33,19 @@ def processImage(image_fn):
 
 # add a digital signature to the metadata
 def writePubImg(pub_fn, sig):
-  img = ImgExif(pub_fn)
+  pass
-  img.addKey(sig.getPubKeyPEM())
+  # img = ImgExif(pub_fn)
-  img.addSig(sig.sig_data)
+  # img.addKey(sig.getPubKeyPEM())
-  img.saveFile()
+  # img.addSig(sig.sig_data)
+  # img.saveFile()
 
 #
 def writePrivImg(priv_fn, sig):
-  img = ImgExif(priv_fn)
+  pass
-  img.addKey(sig.getPrivKeyPEM())
+  # img = ImgExif(priv_fn)
+  # img.addKey(sig.getPrivKeyPEM())
   #img.addSig(sig.sig_data)
-  img.saveFile()
+  # img.saveFile()
 
 #
 def copyImage(image_fn):

pip-req.txt

@@ -1,5 +1,4 @@
 Pillow==3.3.1
 pycrypto==2.6.1
-pygobject==3.20.1
 requests==2.11.0
 shellescape==3.4.1