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1answer
32 views

Is there a secure method of distributing keys to network-booted diskless nodes?

I have a bit of an 'initial trust' issue. We are using CoreOS to run Kubernetes, and secure both the etcd API and the Kubernetes API servers using client certificates. We are using iPXE to boot ...
0
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0answers
23 views

Potential security concerns with using Torrent Trackers Servers for establishing P2P

I am designing a small p2p system, and I am thinking of using Torrent Tracker Servers, by way of a unique infohash, which all the peers share and use to find each other. The idea being, the first ...
1
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1answer
41 views

Any benefit to proof-of-work to avoid database lookups?

I thought I was being clever - overly engineering a (just for my learning) mobile app that is scaled out using only distributed technologies (AWS Lambda, S3, and Dynamo DB in this case). I want to ...
3
votes
3answers
97 views

PKI usage in a cluster; per application instance or per application?

I'm having a cluster with nodes (let's call them A and B for the sake of example) running identical micro services (1, 2 and 3 - so the application 2 running on node A is called A2). The applications ...
0
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1answer
243 views

Does it increase the security if we split data to n pieces and encrypt each one with different key and different algorithm?

For example: a 10 MB file will be sliced to 10 pieces (each 1 MB) and then dispersed between network nodes. Each node will encrypt it with its own key and different algorithm (AES, TwoFish, Blowfish, ...
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4answers
1k views

Is there any defense against Brute-Force done on a local encrypted file?

Let me start off by saying I don't know very much about encryption, hashing, cracking, etc. I'm just a typical computer enthusiasts, programmer and researcher with many questions. So, I've discovered ...
2
votes
1answer
87 views

Reducing asymmetric authorization token size

I would like to use an asymmetric rather than symmetric signature for authorization, since I don't want a compromised service being able to forge authorization tokens (obviously). An authorization ...
0
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1answer
224 views

Secure distributed storing and querying of [medical] data?

Comparing ways of distributing and securely storing and querying structured and schemaless data. Currently I am using MongoDB, but am looking into (Postgres|MySQL)&CryptDB, Cassandra and others. ...
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votes
2answers
182 views

Could a network host and process programs while securing against piracy?

Consider an ideal service hosting network, which: Lets programmers: Publish a program in such a way that it can't be retrieved. Associate a program with a wallet. Specify a cost per request and ...
1
vote
3answers
310 views

Is a file hash checking system 100% secure and non-bypassable/fakable?

I'm building an open source distributed (and partly offline replicated, as it's assumed that the network will be unstable) CMS and one of the core system 'job' will be to group all the files and ...
9
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1answer
255 views

Download mirror security

As with a large amount of open-source softwares, (Debian, Eclipse, PHP) you can apply to become a mirror of their site/downloads. I fully understand that this helps them with bandwidth and ...
4
votes
1answer
1k views

Is there any functional distributed timestamp server available? If not what about this homebrew solution?

Objective A secure Arrow of Time with unpredictable future behaviour to stop attackers or DDoS BotNets from pre-calculating proof-of-work and other gateway protections for P2P/F2F. A distributed ...
12
votes
1answer
499 views

How can an attacker abuse a distributed system?

How can an attacker take advantage of a world where state is eventually consistent and vector clocks are used to settle disagreements? For example, what are the security concerns of using a database ...
12
votes
1answer
308 views

A filesystem with chunks hidden all over the internet?

I am wondering if there are any implementations of a filesystem (as in FUSE) that would allow me to host a file in chunks steganographically distributed all over the internet. The way I imagine it, ...
3
votes
1answer
1k views

How large RSA-keys could the worlds combined computer power factorize in reasonable time?

If you combined every microprocessor on earth into one humongous computational cluster, how large RSA-keys could you factor in reasonable time (lets say a few years)? I know from reading the answers ...
1
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2answers
708 views

How is distributed computing security ensured?

I browsed some articles found on the web but none of them seems to have the answer to my question (or maybe I didn't see it). I've heard that it is possible to give one's CPU unused power to research ...