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Welcome to (Cryptoserver)

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"Privacy is the power to selectively reveal oneself to the world". Eric Hughes


"Suitable connection or dependence, consistency" (in narrative or argument), also more literally "act or state of sticking or cleaving of one thing to another".


Coherence (ko.eˈɾen.s) performs and offloads cryptography operations with a focus on interoperability, flexibility and simplicity. Coherence gives an interface for modern cryptographic algorithms which is inspired by Openssl, it is a REST API in order to be used by any language, in other words Coherence minimizes development time and code complexity. Some of the algorithms offered by Coherence are AES and AES candidates, Sosemanuk, SHA* family, HMAC, DH, RSA, DSA, ECC, NTRU.

This technology helps us to bring post-quantum cryptography to modern web apps.


  • Hash functions: SHA3, SHA2, SHA1, WHIRLPOOL, Blake2b, SipHash.
  • Password-hashing function: Argon2
  • Stream ciphers: Sosemanuk, Salsa20/20.
  • Block ciphers: AES, RC6, MARS, Twofish, Serpent, CAST-256, Camellia, SPECK, SIMECK.
  • Block ciphers modes: CTR, GCM.
  • Message authentication codes: HMAC(SHA3, SHA2, SHA1, WHIRLPOOL), CMAC(AES, RC6, MARS, Twofish, Serpent, CAST-256, Camellia), VMAC(AES, RC6, MARS, Twofish, Serpent, CAST-256, Camellia), Poly1305.
  • RSA: Key generation, digital signature, encryption.
  • DSA: Key generation, digital signature.
  • DH: Key generation, key exchange (rfc and custom parameters).
  • ECC: Key generation, ECIES, ECDSA, ECDH, Curve25519, ECNR.
  • Post-Quantum Cryptography sign: Dilithium, SPHINCS+, Rainbow.
  • Post-Quantum Cryptography kem: NTRU, Kyber, Saber.

Be careful Post-Quantum Cryptography is not an standard yet and is experimental.

Quickstart (Docker image)

docker run -d liesware/coherence:latest /usr/bin/coherence


#!/usr/bin/env python

import requests
import json
import os,binascii

def sending(message):
	url = 'http://localhost:6613/', data=message)
	print response.content

data_js='{"version":1,"algorithm":"SHA3_512","type":"string","plaintext":"Hello world!"}'

We are getting SHA3-512 for "Hello world!" string.


You can use your favorite language, we are using python only for illustrative examples

The code is very simple and with basic programming knowledge you should be able to understand it. You only need to understand python and REST API


docker run -d liesware/coherence:latest /usr/bin/coherence_grpc 6613

The protocol buffer is on grpc/grpc/coherence.proto

HTTP and GRPC have the same API, but on GRPC you need to send as JSON.stringify()


on ~/coherence02/

Terminal 1

  • watch python -p $(pidof coherence)

Terminal 2

  • cd bin/ && ./coherence 6613

Terminal 3

  • cd examples/ && sh



Please see


  • Be cryptoserver (server dedicated for cryptography)
  • Improve security in L7 (Cryptography for webapps)


Current version Essence.


  • Master: Stable, standard and experimental algorithms.


Through Github


We will be so happy to listent to you, only concise and well-reasoned feedback are welcome. please be critic with yourself before writing.

coherence 4t 3vidence d0t com