avbpod

tech

I've built a lightweight, fully standalone open-source HTML file that lets you perform high-security key derivation and encryption directly in your browser — no installation, no servers, no tracking.
Core features:

Encrypt any message or text offline using strong, modern cryptography
Everything stays client-side: the encrypted output is generated entirely on your device
The only identifier used is a standard Nostr public key (npub...) — no accounts, no emails, no additional metadata required

Distribution flexibility (your choice):
Built-in support for 5 privacy-respecting options out of the box:

Nostr (e.g. via DMs or public notes)
NTFY
Blossom
DPASTE
IPFS

Works especially well in combination with:

timeseed.io — for simple, memorable time-based or password-derived keys
GnuPG/OpenPGP — for hybrid workflows or verifying/adding signatures

--

Support my work (it's all Value 4 Value )  this tool took a few months to build / research and test.

https://timeseed.io/donate

DENMS : A distributed nostr-id based message system

bitcoin

Easy timelock for bitcoin

It's a very old concept in bitcoin. But finally you have some clear and working page that allows you to actually use it, instead of "guessing" the right sequence or notation.

RELEASED an easy way to create, and use time-locked bitcoin.
This again, is a standalone easy tool to let anyone construct time-lock bitcoin "vaults".

Many tools and wallets offer a way to use bitcoin's time-lock feature, but they all seem to fail at the very basics of selecting the time and the exact conditions + keys in the right format. This tool solves this.

deleted by author

TimeVault is a simple standalone HTML tool that lets you encrypt any text or file into a secure time capsule using the League of Entropy's drand network (backed by Cloudflare), so it stays completely unreadable until the exact future date you choose. 

                liveUrl: "https://allesvoorbitcoin.be/21tools/timevault/

TimeVault : an easy way to time-lock (texts or files) on the drand network

TimeSeed v3 is here — now post-quantum secure

We just shipped v3 with hybrid ML-KEM-768 (the official NIST post-quantum standard) layered on top of the battle-tested Argon2id + AES-256-GCM stack.

Keys are still fully deterministic: same TimeSeed + pepper + date → same strong key every time, no storage required. Everything runs client-side in your browser, online or offline, zero servers.
v3 adds future-proof protection against harvest-now-decrypt-later attacks while silently falling back to pure Argon2id for all existing v2/v1 ciphertexts — full backward compatibility.

LockIt (the lightweight phone companion) is also updated for v3 keys.

Try it: https://timeseed.io

TimeSeed v3 released (ML-KEM keys, Argon2id, and AES) all offline in-browser

privacy

Timeseed v2: local-first encryption with deterministic, time-based keys (no servers, no apps)

Body

Encryption today mostly means trusting apps, update pipelines, and centralized infrastructure. Even “end-to-end” systems still depend on vendors, app stores, and forced updates.

Timeseed v2 is an attempt to remove that dependency entirely.

It’s a lightweight, open-source, client-side encryption tool that runs as a standalone HTML file (online or fully offline, air-gapped if you want). No accounts, no servers, no key exchange.

Instead of contacts and key servers, Timeseed uses deterministic time-based key derivation:

Generate a high-entropy TimeSeed root

Optionally add a secret pepper

Derive reproducible passkeys scoped to daily, monthly, or long-term periods

Rotate keys simply by advancing the date — no coordination required

Crypto stack:

Argon2id (memory-hard KDF)

AES-GCM (authenticated encryption)

Per-operation random salts and IVs

All encryption happens locally before any network touch

You can share a TimeSeed publicly if it’s pepper-protected, or keep everything private. Re-keying is trivial. No identifiers tied to phone numbers, emails, or IPs.

Timeseed v2 also includes LockIt, a companion encrypt/decrypt tool for text and files using derived passkeys — useful on desktop or mobile in constrained situations.

This isn’t a messaging app. It’s pre-network encryption you control.

If you believe sovereignty means owning your keys and your tooling, this may be useful.

Online demo + offline HTML download

Open source

No tokens, no accounts, no telemetry

👉 https://timeseed.io

Timeseed v.2 - Local, time-based KDF + encryption

This is dice-generated seed phrase tool.
It simulates what a user would do manually with 2 times 20 sided and 2 times 10 sided dice for generating a seed phrase.
1) it gets entropy from the DRAND network 
2) you go offline after it gets the entropy data (or stay online if you feel safe doing so (not recommended) 
3) you choose 12 or 24 BIP39 seed format
4) you choose arrays starting at 0 or at 1 (your choice)
Then generates the seed
You can get an audit report in pdf, and you can verify the code yourself, which can run offline and locally.
It aims to be a more mathematically perfect way to "throw dice", disregarding the bias of a user, and the possible imperfections in the dice production.


BIP39 Dice Seed Phrase Generator

A case for running a DRAND node alongside bitcoin

Your bitcoin node is like a condom machine in the Vatican

I made a crossover between my "time since" tool (where we track the time passed since the last block with some visuals of it goes over 30 minutes).
Now, in this version we added a Satoshi time counter, where we look at the number of Satoshi time that's passed since the last block.
(Satoshi time on itself takes the BST (bitcoin strandard time) and adds a few twists to get a block-centric time view.  https://allesvoorbitcoin.be/satoshitime/

(please donate to keep my creativity flowing, and give credit if you find this useful for your service / site)
the donate page is at the bottom

Time since last block / in Satoshi-time

Satoshi Time

0016 217 : 002 . 31

(you can visit the site and see for yourself, why do you want me to write it down here? :) 


Adaptation for the BST (bitcoin standard time) which is a pure timezone indicator.
Based on this I've made 'Satoshi Time'.
Years (since the genesis block) , then days (one earth rotation) and then the theoretical 144 blocks of each 10 minutes divided in Satseconds and Toshis (100 satseconds for one average block found time) then 144 blocks per earth rotation.

Bitcoin Standard Time

thx for the positive input

There will be a second version soon, with customization, but first there will be two parts: BST (a bit like GMT) and then the Satoshi time, which counts a different way.
More soon

I've created a live ticker for BST (bitcoin standard time) ... where the "midnight" moment is aligned with the 18h 15m 05s timeframe of the timestamp of the bitcoin networks genesis block.
I've added some more time indicators (like decimal time, unix and swatch beats) in the "more" section at the bottom. 
Enjoy

A thought about the "bitcoin standard" and the way it feeds us mainly passivity.

The Bitcoin Standard obituary

A short insight about the basics of proof-of-work being squandered more and more by PoS'mentality.

The paradox of Bitcoin valorization

Long-read in Dutch (feel free to translate) about the formal economy and attempts at a "total control" economy in the European Union. 

De illusie van de witte EU economie

Your TimeSeed, your freedom to communicate.

If you scroll down , like usual on many sites there's a "how does it work" link... where it's explained for people unfamiliar with encryption

Your TimeSeed, your freedom to communicate. 

TimeSeed.io v1.13 is LIVE! 

Derive secure keys from a single seed. Open-source, no tracking, no middlemen—just pure privacy & control. Value4Value: help us grow!

Start now: https://timeseed.io 
or start here :
https://timeseed.io/quickstart.html

#TimeSeed #Privacy #Encryption

