Archiving private keys - TLDR version

0. Make multiple encrypted copies. On DVDs (they are better than CDs and Blu-Ray discs; DVD+R are better than DVD-R), paper, cloud services like DropBox, OneDrive, Google Drive, e-mail it to yourself and to your friends, use P2P storage services like MaidSafe, Storj and Sia, etc.

1. Use proper font when printing PGP encrypted keys on paper.

2. Flash memory (SSD, USB flash drives, hardware wallets) is less reliable when not powered regularly (i.e. every week).

3. Use error correction methods like Parchive and ZFS.

4. Print on paper or store on digital media only encrypted data.

5. Your encryption software should use CPU/RAM-intensive KDF (i.e. scrypt with secure options - do not use defaults!). First, encrypt with scrypt and then encrypt it again with PGP (using different password!) in ASCII armor mode before print it (other methods like QR codes may not be reliable as multiple copies of the PGP ASCII armor).Do not use the same password for the PGP because it's easy to brute force and the attacker will open your scrypt encrypted archive if it's encrypted with the same or similar password! PGP applications like GnuPG are not using good enough key stretching and are prone to brute force attacks!

6. Avoid writing on the hard drive (some printers have too) non-encrypted keys. By default your OS writes all printed pages on your hard drive (and then "deletes" them non-securely). Use Live Linux system like Ubuntu Live or Tails (run from DVD or flash drive in read-only mode; with hard drive disconnected from your computer).

Comments

TedJonesWeb.blogspot.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com

Popular posts from this blog

The new Bitstamp's KYC (Know Your Customer) questionnaire is intrusive and out of control

Do not use (only) flash memory (SSD drives, hardware wallets, USB flash drives) for your precious private keys!

"The Uncensored Hidden Wiki" fake replica!

When you print important crypto stuff (private keys) make sure you use a proper font and don't leave traces on your printer's hard drive and your computer's hard drive

Brexit will make Bitcoin more popular

"I'm earning 15k and my friends earn 80k", "I feel like I want to end my life."