def decryptfile(self, path):
with open(path) as f1:
tmpfile = mktemp(prefix='kina')
with open(tmpfile, 'wb') as f2:
iv = f1.read(Cipher.get_blocksize(CIPHERNAME))
ctxsha256 = sha256()
ctx = Cipher(self.key, iv, 0,
ciphername=CIPHERNAME)
while True:
buff = f1.read(8192)
if len(buff) <= 0:
break
pbuff = ctx.update(buff)
ctxsha256.update(pbuff)
f2.write(pbuff)
f2.write(ctx.final())
move(tmpfile, path)
return ctxsha256.hexdigest()
def encryptfile(self, path):
with open(path) as f1:
tmpfile = mktemp(prefix='kina')
with open(tmpfile, 'wb') as f2:
iv = Cipher.gen_IV(CIPHERNAME)
ctxsha256 = sha256()
ctx = Cipher(self.key, iv, 1,
ciphername=CIPHERNAME)
f2.write(iv)
while True:
buff = f1.read(8192)
if len(buff) <= 0:
break
ctxsha256.update(buff)
f2.write(ctx.update(buff))
f2.write(ctx.final())
move(tmpfile, path)
return ctxsha256.hexdigest()
