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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....
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0answers
10 views

JavaScript library for decrypting XChaCha20-Poly1305-IETF

I used Libsodium.js to encrypt some text (demo fiddle here), and then I learned that Libsodium.js doesn't support iOS 11.2. I now need an alternative JavaScript library that can encrypt and decrypt ...
4
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0answers
27 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 ...
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0answers
13 views

EC Deciphering from javascript in java using eccrypto

I'm using eccrypto to cipher data from a web application. I'm left on one side with a iv, an ephemPublicKey and a cipherText (see public json) and on the other side with a private key (see private key ...
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7 views

Homomorphic Cryptography API in Java

Does anyone have an API that does homomorphic cryptography to recommend?
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0answers
23 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.
2
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2answers
58 views

What's the easiest secure way to encrypt a string with my own password on Linux?

I have a 12 word string that I want to encrypt securely and easily with my own long password in order to store the (preferably readable) result in writing in paper. I'm basically looking for a step ...
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1answer
62 views

RSA library for C supporting smaller key sizes

I was developing a crypto cracking challenge where the ultimate task is to factor a RSA key. To make the process feasible I want to use small key sizes (512 bits and lower). The challenge is a ...
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0answers
19 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 ...
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2answers
53 views

Configurable Rijndael implementation for Linux?

I'm trying to recreate an (old) C# program in something that will run on Linux. So far I'm struggling to find an implementation that's configurable enough to make it happen. These are the ...
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0answers
12 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
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2answers
115 views

Java implementation of Supersingular isogeny Diffie–Hellman key exchange (SIDH)

I am looking for a SIDH implementation for Java. Any license, it's for testing. Any recommendations?
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0answers
65 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 ...
1
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1answer
42 views

Lightweight cross-platform cryptography-quality RNG

I am looking for a lightweight (< 500 SLOC) random generator that's suitable for cryptography. This needs to be C code that I can include in the SlipRock library (which I am developing). Currently ...
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0answers
177 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/ ...
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0answers
30 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 ...
2
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0answers
46 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 ...
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0answers
21 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 ...
5
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0answers
25 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
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0answers
42 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
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2answers
134 views

CSPRGs in Python

I want to implement a CSPRNG for a stream cipher. I've tried implementing the BBS, but I've heard that it needs very big seeds to be secure. Is there a function in some library for Python 3 that adds ...
1
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1answer
35 views

DSA provider for java

What I want A DSA encryption and decryption provider for java. requirements 1-provides encryption and decryption with DSA: I don't need key generation because the official(and openjdk) provides ...
3
votes
1answer
36 views

crypto notes service

I'm looking for a online service similar to passpack.com but for notes, not for passwords. I want all the notes (plain text) has been encrypted on the server and decrypted on the client. The only ...
2
votes
0answers
90 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 ...
5
votes
1answer
143 views

bare metal crypto library

I am writing an application that will be run on bare metal, i.e. it will not run on a kernel and therefore cannot invoke system calls. There will also be no C runtime. Is there a crypto library I can ...
4
votes
1answer
326 views

Small crypto library in C

What is the best C crypto library for small devices? My device is very limited in memory (only about 50 KB left). Also I do not need all of the fancy cryptography algorithms. An encryption, MAC ...
1
vote
2answers
249 views

Software for determining known text cipher type and key

I have a piece of encrypted text and the clear text. Do any open source tools (with sourcecode) exist that can help determine the type of cipher and the key? (Operating system or language is ...
12
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3answers
736 views

Lightweight crypto library to verify a signature

Are there any open source crypto libraries that can be used in embedded systems or in other memory constrained places like a boot rom? I am looking for libraries that I can compile only the algorithms ...
3
votes
1answer
5k views

Is there a lightweight library that can perform RSA-2048 encryption for an embedded application?

I'm looking for a C/C++ implementation of RSA with a 2048 bit key (preferably read from a file). My target is an embedded platform, so it comes with some odd restrictions. The hardware restricts us ...