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What is an encrypted private key?

BIP 0038 is a standard to encrypt individual private keys. Encrypted private keys are intended for use on paper wallets and physical Bitcoins.

We will generate one or more pairs of a Bitcoin address and its encrypted private key with an intermediate code. We only know the address and encrypted private key, but cannot decrypt the private key as we never receive the original passphrase.

An encrypted private key starts with a '6'. The starting number '6' represents "a private key that needs something else to be usable". The second character ought to give a hint as to what is needed to use the private key. For an encrypted key requiring a passphrase, the uppercase letter P is used. The encrypted private key is the first factor, the needed passphrase to decrypt it being the second factor of a two factor authentication system.

An example of an encrypted private key is: 6PgNBNNzDkKdhkT6uJntUXwwzQV8Rr2tZcbkDcuC9DZRsS6AtHts4Ypo1j

About Us

The 5C-Basic GmbH & Co. KG was founded in 2010 with headquarters in Leipzig. We have been fascinated by the Bitcoin since 2012 and in the beginning of 2013 we implemented the project Bit-Card.

legal information

Feel free to contact us if you have any problems.

Company 5C-Basic GmbH & Co. KG
Address Stauffacherweg 16
04129 Leipzig, Germany
Email support@bit-card.com
Register Court AG Leipzig, HRB 26544