def __signBlocks(self, publicKey, privateKey): # we want to be able to mask out fields we disagree with
signatures = []
publicKeyString = rsa.keystring(publicKey)
for item in self.__data:
if item[0] is "block":
hash = self.__findNamedItem("hash", item[1])
if hash and hash[1]:
signed = rsa.sign(hash, privateKey)
signatures.append(("sign", [("key", publicKeyString), ("hash", hash[1])], [signed]))
elif not item[0] is "sign":
raise SyntaxError("We have a top level item that is not 'sign' and is not 'block'")
self.__data.extend(signatures)
x.set("description", "Original test document")
x.set(
"chunks",
properties=[("size", "1024")],
value=[
("chunk", [], ["5435364567457"]),
("chunk", [], ["6547756785678"]),
("chunk", [], ["4346547658565"]),
("chunk", [], ["4578758768675"]),
("chunk", [], ["6677658585756"]),
],
)
print x.get("name")
print "Generating first key"
(publicKey, privateKey) = rsa.gen_pubpriv_keys(128)
trust = {rsa.keystring(publicKey): {"good": 3, "bad": 1}}
print "signing first data"
x.sign(publicKey, privateKey)
print x.get("name", trust)
x.set("name", "Test.txt")
print x.get("name", trust)
print "Generating second key"
(publicKey2, privateKey2) = rsa.gen_pubpriv_keys(128)
trust[rsa.keystring(publicKey2)] = {"good": 1, "bad": 2}
print "signing second data"
x.sign(publicKey2, privateKey2)
print x.get("name", trust)
x.sign(publicKey, privateKey)
print x.get("name", trust)
print x
