Search Results for "structure"

Cryptomator is a free and open source project that offers multi-platform, transparent client side encryption of your files in the cloud. It works with just about any cloud storage service; is totally transparent so you can work with your files how you normally would; and secure with a 256-bit key length AES encryption. It’s also simple and easy to use with no need for different accounts, key management, cloud access grants or cipher configurations.

...BLAKE2s-MAC authentication - 16-byte tag, any modification = instant rejection. Streaming keystream generator - secure, large-scale XOR without key reuse. Fake padding (HEAD/TAIL) - obfuscates binary boundaries and payload structure. Precise size encoding - restores original payload exactly. Supports files up to 128 MB per encrypted block. No dependencies, fully offline, cross-platform Python implementation. PQS is designed for high-assurance security, full auditability, and deterministic offline use - without unnecessary complexity. https://github.com/01alekseev/PQS

...It can hold a second, hidden set of secrets that is undetectable and plausibly deniable. The program is also a PC counterpart of the Secrets for Android app. It uses the same data structure and provides synchronization that allows easy transfer of secrets between the two. For those who find the personal computer environment more comfortable for data entry and editing (i.e. a real keyboard), PCSecrets provides an alternative way to manage your secrets. Sync is also effectively a form of backup. To enable the sync feature with Secrets for Android, you need to install the PCSecrets Sync app, downloadable from SourceForge or Google Play. ...

EnigmaLike is an Enigma-like encoding tool for text files that encodes word-by-word using a dictionary/code book/encryption reel set-up. EnigmaLike is written using PerlTk and has instructions in PDF format. For Linux.

Barreto & Rijmen 128-bit block cipher with GCM Mode (RFC 5288) provides both authenticated encryption (confidentiality and authentication) and the ability to check the integrity and authentication of additional authenticated data (AAD) that is sent in the clear. Whirlpool-based PBKDF2. Anubis is a block cipher with SP-network structure designed by Vincent Rijmen and Paulo S. L. M. Barreto in 2000. This project is licensed under the ISC License. Source code: https://github.com/pedroalbanese/anubiscrypt Visit: http://albanese.atwebpages.com/projects.php

AVR128DA /Atmega128 microcontroller based open source EID smartcard with RSA (512-2048) and ECC (prime192v1, prime256v1, secp384r1, secp521r1 and secp256k1) support. Compatible with MyEID card from Aventra. Supported in windows and linux by opensc package. Allow about 64KiB space for keys/certificates. PKCS#15 structure supported. USB token with CCID interface based on xmega128a4u with same features as card. High speed AVR multiple precision arithmetic: squaring, multiplication, exponentiation.

Bias is a cross-platform versatile information management application / Organizer

A 100% pure Java Swing ASN.1 analysis utility for inspecting arbitrary BER-encoded data files. It allows inspection of data with unknown structure, can drill down to any nesting level and allows to interpret embedded OCTET STRING data recursively.

...The cipher takes 3 inputs: the data to encrypt, the symmetric key and a tweak consisting in a array of 16 integers representing each one of eleven possible keyaddition algorithms. Features a similar structure as AES (uses simpler versions of ShiftRows, MixColumns) and uses AES SBOX. It is an SP network. The Key Schedule is a different from AES's, however the Expansion is partially inspired in AES. The 256-bit key is turned into a 576-byte expanded key which is used in every key addition round. D-crypt performs a total of 18 rounds: Firstly it does a SBOX round, and a XOR keyaddition with the first 32bytes of the expanded key, Secondly it does 16 rounds of MixcColums, ShiftRows, KeyAddition (this step is determined by the tweak) and SBOX, and finally, it does an final round of SBOX followed by a final round of XOR key addition, providing key whitening. ...

It's a cross platform utility designed for performing various checksumming activities. It supports verity of standards including ADLER-32, CRC-32, MD2, MD5, MURMUR-32, MURMUR-128, SHA-1, SHA-256, SHA-384, SHA-512 and SIPHASH24. Also generated results can be validated within the application. Results can be saved to a text file format. It can batch process folders as well. This tool requires Java Run-time Environment 7 or higher to use.

It is a simple password manager for your PC and Smartphone. It works like a text editor and uses a strong cryptography algorithm to generate the end file.

If you need to protect your confidential files in office or shared desktops, here is the robust command line and GUI utility to do password based encryption using AES. It can encrypt and decrypt a folder structure containing any number of files.

phpgirder, a set of PHP classes used to add user authentication, Access Control Levels, and encryption to PHP applications or frameworks. The ACL structure uses multiple database users and permissions and SSL encryption for enhanced application security.

The OpenSSL shell/batch script collection offers insight in how to setup a hierarchical PKI structure consisting of a Root CA, several sub CA's and end entity digital certificates. The scripts are available for unix and windows.

GnuPG::Interface is a Perl module interface to interacting with GnuPG. It implements a rich set of filehandle communications with GnuPG and includes a key object organization structure, with information gathered from GnuPG's with-colons option.