You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
45 lines
1.5 KiB
Python
45 lines
1.5 KiB
Python
import base64
|
|
import hashlib
|
|
import math
|
|
import os
|
|
|
|
from . import syfr as crypto
|
|
from . import loader
|
|
|
|
|
|
def random_content(pseudolength):
|
|
return base64.b64encode(os.urandom(pseudolength))
|
|
|
|
|
|
def test_divide_unite_contents():
|
|
# random contents
|
|
complexity = loader.DATA_BLOCK_SIZE * 100 # won't create exactly this length
|
|
contents = random_content(complexity)
|
|
size = len(contents)
|
|
subcontents = loader.divide_contents(contents)
|
|
assert len(subcontents) == math.ceil(float(size) / float(loader.DATA_BLOCK_SIZE))
|
|
assert all([len(x) == loader.DATA_BLOCK_SIZE for x in subcontents])
|
|
|
|
united = loader.unite_contents(subcontents)
|
|
assert hashlib.sha256(united).hexdigest() == hashlib.sha256(contents).hexdigest()
|
|
|
|
|
|
def test_encrypt_block():
|
|
content = crypto.long_pad(random_content(1000))
|
|
rsa_priv = crypto.generate_rsa_key()
|
|
priv2 = crypto.generate_rsa_key()
|
|
receiver_pubkey = crypto.serialize_pubkey(priv2.public_key())
|
|
|
|
response = loader.encrypt_block(content, rsa_priv, receiver_pubkey)
|
|
assert loader.full_decrypt_block(response, priv2) == content
|
|
|
|
|
|
def test_assemble_block_tree():
|
|
contents = random_content(10**6)
|
|
rsa_priv = crypto.generate_rsa_key()
|
|
priv2 = crypto.generate_rsa_key()
|
|
receiver_pubkey = crypto.serialize_pubkey(priv2.public_key())
|
|
blocks = loader.assemble_block_tree(contents, rsa_priv, receiver_pubkey)
|
|
derived_contents = loader.tree_decrypt(blocks[-1], priv2, cached_blocks=blocks)
|
|
assert derived_contents == contents
|