Safe Storage of Passwords, Private Keys, and Other Important Information

Everyone who reads these lines has many his/her own accounts on the Internet, such as online banking, social networks, e-mail, private keys, seed phrases needed to recover Bitcoin funds on-chain, etc. … Many things in our world depend on the safe storage of this data. And many people make a mistake and store all their passwords and other sensitive data in regular files on their devices. All the devices are network-connected, and thus, they are subject to cyber threats, such as Trojans, viruses, hacker attacks, etc. One of these fine days, you can be left without access to your e-mail address to which almost all your accounts are attached. And having lost access to your e-mail, you automatically lose access to many of your accounts linked to your e-mail. After all, an attacker will have no trouble changing the passwords from your accounts using your e-mail. What does this threaten? The attacker will see all your personal correspondence from social networks. And if there is information compromising you, you can be subject to extortion and surrender. Online banking is also vulnerable, and even two-factor authentication via SMS is not a sovereign remedy at the present time. There are so many ways to bypass this protection in 2020. In other words, you can lose all your money. But currently, attackers show a special interest in cryptocurrency wallets. After all, having gained access to such a wallet, they can transfer all funds to their addresses with impunity and without special schemes to hide traces, as against ordinary bank accounts.

Our KeepMySeed team thought about methods for safe storage of sensitive data for a very long time and came up with an interesting idea: We offer you to store important data in NFC tags.

What are NFC tags?

NFC tags are passive devices that operate without power supply; they must fall within a certain range for activation. The tags cannot transfer data by themselves; instead, they are simply used to transfer information to an “active” device – to a Smartphone, for example.

Why did we decide on this particular method?

1. An NFC tag is not connected to the Internet. And this means that it is not subject to such threats as the penetration of a trojan or other hacker attack.
2. NFC tags have a low cost. The simplest NFC tag in the form of a sticker costs from 10 rubles. It is sold in almost every city. You can record the most important data on such a label and stick it, for example, under the cover of your passport. As we know, most adequate people hide their passports in a safe place. Hence, your passwords will be in safekeeping.
3. It is easy to work with NFC tags. Currently, most Smartphones have the ability to record and read NFC tags.

How does it work?

We developed KeepMySeed, a special application on Android (the version on iOS will be ready in the nearest future).

First of all, you should install the application on your Smartphone and run it. Then bring the Smartphone to the NFC tag. A dialog box appears in which you should enter your sensitive data. Also, when recording, you can specify “Encrypt Data”. In this case, the program will propose you to enter a password for the data encryption. And the data will be encrypted using the AES – this is the safest data storage method. All your sensitive data in the tag will be encrypted. And even if an attacker takes possession of your tag, he/she can only read disorganized data. In order to obtain ordered data from this data chaos, the attacker will have to enter the password key for decryption, which you created when recording the tag.

As a result, we have the following: You need to create and remember only one password key. This password key will be used to encrypt and decrypt your data in the NFC tag. This is much easier than remembering dozens of logins and passwords.

NFC tags may be in many different types and form factors as follows:

NFC stickers – these are thin stickers with a chip integrated.

Smart rings with NFC chip – all your sensitive data is in the ring on your finger in the encrypted form.

NFC implants for implantation under the skin – at the present time, the surgery for implanting an NFC chip under the skin can be performed painlessly in almost any piercing center. The chip itself is very tiny and does not make itself felt under the skin.

NFC key chains, cards, etc.

If there are no NFC tags sales outlets in your city, you can order them on our website.
You can download the KeepMySeed application for recording and reading NFC tags on Google Play (This application has open source code. And it is available for audit. You may find all information about this on the page on Google Play).

How does this work?

Watch the video to see how our application works:


Download our app

To work with NFC tags, install our application on your smartphone. After installation, run it and attach it to the NFC tag. After that, the application will ask you to write your Seed phrase into the tag. You can name the tag and select encryption when recording. After recording, this tag can be read by our application.



Order an NFC tag

If you don’t have an NFC tag and your city is hard to find on sale, you can buy the tag at our online store. There are a lot of NFC tags, different kinds and different forms of factors. Our shop only sells tested tags. For payment we accept crypto currency blockchain Minter.



Safe storage of seed

We suggest storing the seed phrase from your crypto wallet in an NFC tag. Don’t keep your mnemonic phrase on your computer or phone as it’s not safe!


NFC tags of different types

We sell NFC tags of all kinds, from smart rings to chips for implantation. Choose the option that suits you best.

Smart ring with NFC

Smart ring with NFC. Ntag216 chip installed. Rewritable ring. Up to 888 bytes. Can be recorded using a smartphone with an NFC chip.

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NFC sticker

NFC Ntag216 888 bytes, sticker.

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NFC chip implant

NFC chip implant. Designed for implantation under the skin. Biocompatible material. The tool for implantation under a skin in the complete set.

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Smart ring with NFC

Smart ring with NFC. Ntag213 chip installed. Rewritable ring. Up to 180 bytes. Can be recorded using a smartphone with an NFC chip.

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NFC key fob

NFC key fob. Ntag 213 — 180 bytes. Convenient to carry with the keys.

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NFC card

NFC card. A regular plastic card with an NFC chip. Not branded. Ntag 216 — 888 bytes.

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