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Welcome!

I'm Joachim Strömbergson, an embedded and hardware focused IT security consultant living in Gothenburg, Sweden. Out of passion as well as professionally, I develop open hardware implementations of cryptographic functions such as ciphers, hash functions, message authentication functions, random number generators. Several of my cores have been used in ASIC and FPGA designs. Please check the status information in the README of the core you are interested in for its readiness and maturity.

For custom core development, adaptions to your specific needs and integration assistance, please contact me.

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Joachim Strömbergson's Projects

cbc icon cbc

CBC block cipher mode of operation for AES.

ccm icon ccm

ccm mode hardware implementation

chacha icon chacha

Verilog 2001 implementation of the ChaCha stream cipher.

chacha_testvectors icon chacha_testvectors

Generator and Internet Draft (I-D) documenting test vectors for the stream cipher ChaCha.

chaskey icon chaskey

Verilog implementation of the Chaskey lightweight message authentication code (MAC) function.

cmac icon cmac

Implementation of the CMAC keyed hash function using AES as block cipher.

coretest icon coretest

Test structure for cores developed as part of the Cryptech Open HSM project

cryptopals icon cryptopals

Personal repo for working on the Cryptopals challenges.

curve25519 icon curve25519

Verilog 2001 of the Curve25519 elliptic curve based function.

ed25519 icon ed25519

ed25519 public key signature implemented in Verilog.

ent_random_sequence_tester icon ent_random_sequence_tester

Utility for testing random and pseudorandom sequences, either as bytes or bit streams, reporting entropy, mean value, serial correlation, chi square, and Monte Carlo estimate of an value, serial correlation, chi square, and Monte Carlo estimate of π.

espresso-logic icon espresso-logic

A modern (2017) compilable re-host of the Espresso heuristic logic minimizer.

extract_ev_data icon extract_ev_data

Pure Python program used to extract EV data from Mozilla CA roots. Used to generate EV validation data in sslyze.

figaro icon figaro

Implementation of the FiGaRO TRNG for FPGAs

fltbwt icon fltbwt

Burrows-Wheeler Transform tool including decoder in 6502 assembler.

fltfpga icon fltfpga

FairLight FPGA demo board based on TerasIC G5C

fltintro icon fltintro

New intro design for FairLight. Hopefully done before DS 2017.

fpga_eth_filter icon fpga_eth_filter

FPGA based Ethernet traffic filter and manipulator for the TerasIC ETHERNET-HSMC Card

fusesoc icon fusesoc

Package manager and build abstraction tool for FPGA/ASIC development

gcm icon gcm

Galois Couter Mode implementation in Verilog.

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