The Stack Overflow podcast is back! Listen to an interview with our new CEO.

Questions tagged [cryptography]

The tag has no usage guidance.

28 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
5
votes
0answers
106 views

Tool for Cryptographic Message Syntax

I am looking for a software tool (preferably command line, open source and running on Linux) which is able to comprehensively handle the Cryptographic Message Syntax (CMS) standard (formerly known as ...
5
votes
0answers
28 views

Software for hardware enforced data backup?

The Problem (may be skipped) I'm thinking about transitioning to an improved backup solution in the long-term compared to what I did until now (which is documented in my other question). So in short,...
4
votes
0answers
38 views

Library for FFT interpolation from values at arbitrary points

I'm trying to implement a cryptographic scheme that leverages constant-sized polynomial commitments by Kate et al [1]. I'm looking for a library that can interpolate a polynomial fast via FFT in a ...
4
votes
0answers
49 views

Tool for smart card based PGP decryption?

My problem (in case there's a solution I couldn't envision) I want to build a secure backup solution. As I own a smartcard, I thought to use asymmetric encryption with the private key remaining on ...
3
votes
0answers
309 views

Double Ratchet Algorithm (Axolotl) implementations

I'm looking for libraries that implement the Double Ratchet Algorithm (known also as Axolotl). So far I've found the following: https://github.com/wireapp/proteus https://whispersystems.org/docs/ ...
2
votes
0answers
175 views

On premise alternative for AWS QLDB

What is the best alternative for on premise solution with the same features as Quantum Ledger Database - AWS QLDB? transparent, immutable, and cryptographically verifiable transaction log owned by ...
2
votes
0answers
50 views

OpenSSL alternative that features better automation properties

I plan on making my own Certificate Authority, and already got quite a bit of money for the project, and now I need a way to issue certificates. I was going to use OpenSSL, but it isn't great for ...
2
votes
0answers
123 views

Java library for threshold signatures

I need a library that implements threshold cryptography. The idea is to use the technique in a replicated system implemented in Java. So far, I have only found ThresSig (which implements Shoup's ...
1
vote
0answers
35 views

ECDH online tool recommendation

Does anyone know some good online calculator or tool that can do a ECDH key agreement cross-check? I want to using the same test vector to do cross-check test with my code. I find this on-line tool ...
1
vote
0answers
110 views

is there any good implementation to the RSA in arduino ? c language

I need a good implementation to the RSA algorithm that works on Arduino Mega with key size 1024. The code will run on Arduino IDE. The project idea simply is that an Android app sends an encrypted ...
1
vote
0answers
54 views

DOS 6.22/Windows 98 encryption software

Is there any encryption software (full disc encryption or container mode) available for Windows 98? Same question for plain DOS 6.22. Maybe it's strange, but for some reasons I need software like that....
1
vote
0answers
34 views

Need Dynamic S Box Library in Java

I need a Java source code library that can dynamically generate the SBox (substitution box) for AES based on the AES256 key provided.
1
vote
0answers
23 views

Elliptic Curve Family “KSS16” arithmetic implementation in C (on embedded devices)

could someone help me find a running implementation of those families? I did some search through google by the terms * KSS16 implementation in C * KSS16 benchmark on embedded( devices) * KSS16 ...
1
vote
0answers
18 views

Image Steganography tool which works on linux and mobile platforms

This is the first time I am trying steganography tools. I am looking for an image steganography tool which works on Linux and mobile platforms. The secret message can be embedded in the image on Linux,...
1
vote
0answers
27 views

Useful security key/crypto testing software

Would prefer open source. Open to commercial recommendations if you can explain why there is no other good option. Looking for software that can more or less black box test for strength and ...
0
votes
0answers
4 views

Encrypt MAC address and send over apache kafka infrastructure using python

I have a data extract from Cisco prime api which contains MAC address of access points among other things. I want to create a kafka-python producer that can encrypt the MAC address and send it over ...
0
votes
0answers
16 views

Key Exchange Algorithm Library in C

I am working on an embedded system with only 128KB of flash memory available and I am looking for a C library that will let me use an algorithm for key exchange. Basically the devices A and B don't ...
0
votes
0answers
19 views

Ruby library for secure password hashing

Following several resources on the web (e.g. here), I'd like to use the $6$rounds=500000$%.16s format for password hashing. One option is mkpasswd -m sha-512 -R 50000. However, I would prefer a Ruby ...
0
votes
0answers
4 views

Is there some libraries or implement of GSW13 homomorphic encryption?

I am doing research related to homomorphic encryption and need to implement the third generation homomorphic encryption proposed in GSW13Homomorphic Encryption from Learning with Errors: Conceptually-...
0
votes
0answers
3 views

Cryptographic Service Provider module signed with microsoft signature

I am looking for a software module csps which is signed with microsoft, ready for using. I mean this module can be used by calling another module, and it have microsoft signature, it can bypass ...
0
votes
0answers
14 views

Where can I find a working implementation of ctr-drbg for javascript?

I'm trying to use ctr-drbg (based on NIST 800-90A) for some work in nodejs, but the only drbg implementation that I could find is here, where you can see that ctr-drbg is proven to not work. From ...
0
votes
0answers
7 views

Realtime plotting a graph for time complexity of RSA algorithim using php

I want to plot a time complexity graph of RSA algorithm using PHP and MySQL.but I don't know how to plot it real-time using PHP. please help me finding opensorce code or tool or libraries to plot it ...
0
votes
1answer
89 views

C++ implementation of IEEE 1609.2 standard

I am looking for a C++ implementation of IEEE 1609.2 standard. This standard defines secure message formats and processing for use by Wireless Access in Vehicular Environments (WAVE) devices, ...
0
votes
0answers
18 views

Looking for C library to program a simple encryption/decryption task by non-cryptographer

I have been trying to implement a high-volume symmetric (AES256) encryption/decryption pipeline for files on disk. Originally, I tried to do this by having scripts call command-line tools such as ...
0
votes
1answer
12 views

Open source libraries for asymmetric encryption for Android and iOS

I'm looking for open-source libraries for both Android and iOS (Swift) to help implement Asymmetric key encryption. I have the public Key and the library should help with AES-128 (data encryption) and ...
0
votes
0answers
20 views

Burmester Desmedt calculations for cryptographic Key agreement in Electron Applications

I am developing a custom Xmppp Client in Electron in order to execute a Burmester Desmedt. I have looked upon the language offered options and this one and failed to offer the desired feature. Also ...
0
votes
0answers
23 views

Recommendation on libraries for Elliptic Curves

I would like to program my cryptographic scheme which uses some computations on elliptic curves. I coded it using sagemath package, which is a python library. It is simple but very slow. I need to ...
0
votes
0answers
36 views

Modular arithmetic with scala

Is there an already made Scala implementation for dealing with modular arithmetic? I could write it myself but as I'm doing some cryptography complex operations I would prefer to check that it is a ...