Dump all bitcoin private keys

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The format of addresses and private keys in MultiChain is similar to that of bitcoin addresses and private keys. However there are some differences, which ensure that addresses and keys created on one MultiChain blockchain are extremely unlikely to be valid on a second chain. This in turns prevents a developer error from accidentally performing an operation on one chain which was intended for another.

Dump all private key bitcoin allows 2 64 dump all private key bitcoin over 10 19 separate address spaces to be defined. In MultiChain these values are generated randomly when a new chain is created and represented by the address-pubkeyhash-version and address-checksum-value values in the blockchain parameters.

There are also address-scripthash-version and private-key-version parameters which define the version bytes for pay-to-scripthash addresses and the exporting of private keys. MultiChain addresses and private keys are similar to those in bitcoin The format of addresses and private keys in MultiChain is similar to that of bitcoin addresses and private keys. The uncompressed version contains 65 bytes, consisting of 0x0432 bytes dump all private key bitcoin the X coordinate and 32 bytes for the Y coordinate.

The compressed version contains 33 bytes, consisting of 0x02 Y is even or dump all private key bitcoin Y is oddfollowed by 32 bytes for the X coordinate. Below is a compressed example: Add the first version byte from the address-pubkeyhash-version blockchain parameter to the start of the RIPEMD hash. For example with 00AFEA This is the address checksum: XOR this checksum with the address-checksum-value blockchain parameter. For example with ABC This is the byte for a 4-byte version binary address: This gives the commonly used address format: Add the first version byte from the private-key-version blockchain parameter to the start of the private key.

For example with B89E: For example with 7B7AEF This is the byte for a 4-byte version key: This gives the commonly used private key format:

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Private keys are long strings of letters and numbers that are literally the key to spending your bitcoin. Each wallet has a number of private keys one for each address. You can back up your private keys for a MultiBit Classic wallet into a text file called a 'private key export file'. You can password protect this text file to prevent other people reading this data.

Below is an example of a private key export file containing demonstration private keys. You typically use Notepad or similar when working with this file. The key shown in bold begins with either "L" or "K". The date is there to allow import software to know when the key was created to avoid looking further back in history than is necessary.

Don't change the date to be more recent as doing so will very likely cause a failed import and an incorrect balance. Below is an example of a password protected private key export file containing demonstration private keys. The content is encrypted AES, password-based key derivation so can only be decrypted by special software and the provision of a password. The MultiBit Classic wiki provides detailed technical information about the file format. If you are intending to store exported keys for a very long time and are concerned about code existing to open them far in the future then we recommend the following:.

Back to Table of Contents Exporting private keys Private keys are long strings of letters and numbers that are literally the key to spending your bitcoin.

How to export the private keys in a wallet In the 'Wallets' side panel choose the wallet you want to export the private keys for. Select the menu option 'Tools Export Private Keys'. The 'Export Private Keys' screen appears. By default, the private keys file is called the same as your wallet file, only with an extension 'key' rather than wallet.

If you want to output the private key file to a different directory or filename click on the 'Export to. A file chooser opens and you can select the file to save to. It is strongly recommended that you password protect your private key export files.

To do this, click on the 'Password protect export file' radio button. Enter the password you want to use in the 'Password' field and then repeat the same password in the 'Repeat password' field.

If they match you get a little green tick on the right hand side. To output the private keys to the output file specified, click on the button 'Export private keys'. The private key file is written and a success message appears.

If the export of the private key file fails for any reason the error message is given on screen. After the export file is written, it is then verified by reading the file back in again and checking the keys in the file match the keys in the wallet. A verification message is given if this is successful. Export file format no password Below is an example of a private key export file containing demonstration private keys. Anyone who can read this file can spend your bitcoin.

The century, 'T' and 'Z' are mandatory Labcabcabcabcabcabcabcabcabc T Export file format password protected Below is an example of a password protected private key export file containing demonstration private keys. If you are intending to store exported keys for a very long time and are concerned about code existing to open them far in the future then we recommend the following: