Re: Help wanted: stickynotes encryption problems
I have found two mistakes in stickynotes.py, but I have installed old
Crypto module which has slightly different way of encrypting/decrypting.
The first one is that it refuses to create encrypted stickynote from empty
node which is, according to the documentation, proper way to create
encrypted stycky note.
@g.command('stickynoteenc')
def stickynoteenc_f(event, rekey=False):
""" Launch editable 'sticky note' for the encrypted node """
if not encOK:
g.es('no en/decryption - need python-crypto module')
return
if not __ENCKEY[0] or rekey:
sn_getenckey()
c = event['c']
p = c.p
v = p.v
def focusin():
if v is c.p.v:
decoded = sn_decode(v.b)
if decoded is None:
return
if decoded != nf.toPlainText():
# only when needed to avoid scroll jumping
nf.setPlainText(decoded)
nf.setWindowTitle(p.h)
nf.dirty = False
def focusout():
if not nf.dirty:
return
enc = sn_encode(str(nf.toPlainText()))
if v.b != enc:
v.b = enc
v.setDirty()
# Fix #249: Leo and Stickynote plugin do not request to save
c.setChanged(True)
nf.dirty = False
p = c.p
if p.v is v:
c.selectPosition(c.p)
c.redraw()
if rekey:
unsecret = sn_decode(v.b)
if unsecret is None:
return
sn_getenckey()
secret = sn_encode(unsecret)
v.b = secret
// this is new - check if it is old note already encrypted
if v.b:
decoded = sn_decode(v.b)
if decoded is None:
return
else:
// creating new encrypted note
decoded = v.b
nf = mknote(c,p, focusin=focusin, focusout=focusout)
nf.setPlainText(decoded)
if rekey:
g.es("Key updated, data decoded with new key shown in window")
See the red colored code.
The other mistake is in padding string. It is necessary to pad bytes not
unicode strings.
def sn_encode(s): s1 = s.encode('utf8') pad = b' '*(16-len(s1)%16) txta =
AES.new(__ENCKEY[0]).encrypt(s1 + pad) # for old Crypto module # txta =
AES.new(__ENCKEY[0], AES.MODE_EAX).encrypt(s1 + pad) # for pycryptodome txt
= base64.b64encode(txta) txt = str(txt, 'utf-8') wrapped =
textwrap.wrap(txt, break_long_words=True) return '\n'.join(wrapped)
With this two changes it works for me although I get crashes if calling
AES.new as in pycryptodome.
The encryption / decryption itself must be handled separately to check if
we have new or old Crypto module.
The old one doesn't have AES.MODE_EAX.
def get_encoder():
key = __ENCKEY[0]
if hasattr(AES, 'MODE_EAX'):
return AES.new(key, AES.MODE_EAX)
else:
return AES.new(key)
# txt = get_encoder().encrypt(s1 + pad)
# or
# decoded = get_encoder().decrypt(s1)
HTH Vitalije
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Re: Help wanted: stickynotes encryption problems
I really don't know what is wrong with code blocks in google groups. Whenever I copy code from Leo and paste it in a message, each line of code is separated by an empty line. If I try to type in code directly it prevents me to append new line, or to add space at the end of line, quite annoying really. Now in the previous message I had pasted code to Atom editor, then copied it again and pasted here. The first code block was ok, the second was turned into a single line. So I had to edit previous message and when I manually added line breaks and saved message, now it is again turned each line break into two line breaks. Does anybody else notices similar behavior? I am using Google Chrome, regularly updated. Vitalije -- You received this message because you are subscribed to the Google Groups "leo-editor" group. To unsubscribe from this group and stop receiving emails from it, send an email to leo-editor+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/leo-editor/629d2349-d4e7-4079-8cf2-5853b5a3a774%40googlegroups.com.
Re: Help wanted: stickynotes encryption problems
> > Does anybody else notices similar behavior? I am using Google Chrome, > regularly updated. > I'm not seeing this with up to date Firefox on Windows right now, but I have run into formatting wierdness in g-groups before. One thing that helped was turning off the browser automatic spell checking. -matt -- You received this message because you are subscribed to the Google Groups "leo-editor" group. To unsubscribe from this group and stop receiving emails from it, send an email to leo-editor+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/leo-editor/8d25da4f-fdbf-44d3-be69-5b28d190c94f%40googlegroups.com.
Re: Help wanted: stickynotes encryption problems
> Does anybody else notices similar behavior? I am using Google Chrome, >> regularly updated. >> > > I'm not seeing this with up to date Firefox on Windows right now, but I > have run into formatting wierdness in g-groups before. One thing that > helped was turning off the browser automatic spell checking. > Aha! Ran into this problem today, with Firefox. The fix seems to be 1) initiate code block using toolbar button, then 2) paste the code into the block. When I typed/pasted the code first and then turned into a code block it added line breaks. -matt -- You received this message because you are subscribed to the Google Groups "leo-editor" group. To unsubscribe from this group and stop receiving emails from it, send an email to leo-editor+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/leo-editor/09f2b7eb-d1cf-43bc-9ab7-f2530733bf05%40googlegroups.com.
