Question

I am new to MongoDB. Anyway, I am trying to save some data that is encrypted and base64 encoded.

data = b64encode(self.iv + AES.new(self.key, self.mode, self.iv).encrypt(self.pad2(self.data)))
self.db.users.insert({'data':data})
self.db.users.find({'data':data})

The insert works fine, but finding data returns 0 results. MongoDB shell outputs this:

db.users.find()
{ "_id" : ObjectId("50f848dc34257b0d5e3d9b29"), "data" : BinData(0,"R1VhaHl3MGpLSStkY0lWU255ZjhneGp2RWk3cEk3MnFRTCsxOTcyOC82WT0=")}

How can I find my document by BinData filetype now? I’ve tried bson.binary.Binary no luck there.

Answer 1

Not sure if you still need this (or why you’re converting from binary to base64 to binary), but I hope this helps:

import base64
import pymongo
from pymongo import binary
# if pymongo version >= 1.9, use the following instead
# from bson import binary

con = pymongo.Connection()
b64 = base64.b64encode("ajskldfjaklsdjfklasdjf")
bi = binary.Binary(b64)
con.test.test.insert({'foo': bi})
con.test.test.find_one({'foo': bi})

Output:

{
    u'_id': ObjectId('50f99b4a9f956a1924000000'),
    u'foo': Binary('YWpza2xkZmpha2xzZGpma2xhc2RqZg==', 0)
}