Wallet import format - Revision history

Midnightmagic: scummy WIF converter was just stealing private keys and was written badly anyway

2024-03-11T19:54:13Z

scummy WIF converter was just stealing private keys and was written badly anyway

← Older revision		Revision as of 19:54, 11 March 2024
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	{{sample}}		{{sample}}
	A '''wallet import format''' ('''WIF''', also known as a '''wallet export format''') is a way of encoding a private ECDSA key so as to make it easier to copy.		A '''wallet import format''' ('''WIF''', also known as a '''wallet export format''') is a way of encoding a private ECDSA key so as to make it easier to copy.

	~~A testing suite is available for encoding and decoding of WIF at:~~

	~~http://gobittest.appspot.com/PrivateKey~~

	==Private key to WIF==		==Private key to WIF==

Pseudo geek: Add "References" subtitle

2021-10-28T22:04:42Z

Add "References" subtitle

← Older revision		Revision as of 22:04, 28 October 2021
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	507A5B8D		507A5B8D
	8. If they are, and the byte string from point 2 starts with <code>0x80</code> (<code>0xef</code> for testnet addresses), then there is no error.		8. If they are, and the byte string from point 2 starts with <code>0x80</code> (<code>0xef</code> for testnet addresses), then there is no error.

			== References ==
			<references />

	{{Stub}}		{{Stub}}
	{{Bitcoin Core documentation}}		{{Bitcoin Core documentation}}

Pseudo geek: Remind about electrum-defined and deprecated WIF version numbers

2021-10-28T21:53:03Z

Remind about electrum-defined and deprecated WIF version numbers

← Older revision		Revision as of 21:53, 28 October 2021
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	3. Drop the last 4 checksum bytes from the byte string.		3. Drop the last 4 checksum bytes from the byte string.
	800C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D		800C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D
	4. Drop the first byte (it should be <code>0x80</code>). If the private key corresponded to a compressed public key, also drop the last byte (it should be <code>0x01</code>). If it corresponded to a compressed public key, the WIF string will have started with K or L instead of 5 (or c instead of 9 on testnet). This is the private key.		4. Drop the first byte (it should be <code>0x80</code>, however legacy Electrum<ref name="electrum-300-wif">[https://github.com/spesmilo/electrum/blob/3.0.0/RELEASE-NOTES#L42]</ref><ref name="electrum-310-wif">[https://github.com/spesmilo/electrum/blob/3.1.0/RELEASE-NOTES#L58]</ref> or some SegWit vanity address generators<ref name="segvan-wif">[https://github.com/nym-zone/segvan/blob/388b157c68c3b45f7c3200cc62a2fea6ffcb5555/segvan.c#L88]</ref> may use <code>0x81-0x87</code>). If the private key corresponded to a compressed public key, also drop the last byte (it should be <code>0x01</code>). If it corresponded to a compressed public key, the WIF string will have started with K or L (or M, if it's exported from legacy Electrum<ref name="electrum-300-wif" /><ref name="electrum-310-wif" /> etc<ref name="segvan-wif" />) instead of 5 (or c instead of 9 on testnet). This is the private key.
	0C28FCA386C7A227600B2FE50B7CAE1{{taggant private key}}1EC86D3BF1FBE471BE89827E19D72AA1D		0C28FCA386C7A227600B2FE50B7CAE1{{taggant private key}}1EC86D3BF1FBE471BE89827E19D72AA1D

	==WIF checksum checking==		==WIF checksum checking==
	1. Take the wallet import format (WIF) string.		1. Take the wallet import format (WIF) string.

Pancyrus: Fixed some formatting issues.

2021-07-19T23:26:23Z

Fixed some formatting issues.

Taras: Some more taggants just in case

2017-08-10T07:01:59Z

Some more taggants just in case

← Older revision		Revision as of 07:01, 10 August 2017
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	==Private key to WIF==		==Private key to WIF==
	1 - Take a private key		1 - Take a private key
	~~0C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D~~		0C28FCA386C7A227600B2FE50B7CAE{{taggant private key}}11EC86D3BF1FBE471BE89827E19D72AA1D
	2 - Add a 0x80 byte in front of it for mainnet addresses or 0xef for testnet addresses. Also add a 0x01 byte at the end if the private key will correspond to a compressed public key		2 - Add a 0x80 byte in front of it for mainnet addresses or 0xef for testnet addresses. Also add a 0x01 byte at the end if the private key will correspond to a compressed public key
	~~800C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D~~		800C28FCA386C7A227600B2FE50B7C{{taggant private key}}AE11EC86D3BF1FBE471BE89827E19D72AA1D
	3 - Perform SHA-256 hash on the extended key		3 - Perform SHA-256 hash on the extended key
	8147786C4D15106333BF278D71DADAF1079EF2D2440A4DDE37D747DED5403592		8147786C4D15106333BF278D71DADAF1079EF2D2440A4DDE37D747DED5403592
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	507A5B8D		507A5B8D
	6 - Add the 4 checksum bytes from point 5 at the end of the extended key from point 2		6 - Add the 4 checksum bytes from point 5 at the end of the extended key from point 2
	~~800C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D507A5B8D~~		800C28FCA386C7A227600B2FE50B7CAE11EC8{{taggant private key}}6D3BF1FBE471BE89827E19D72AA1D507A5B8D
	7 - Convert the result from a byte string into a base58 string using [[Base58Check encoding]]. This is the Wallet Import Format		7 - Convert the result from a byte string into a base58 string using [[Base58Check encoding]]. This is the Wallet Import Format
	5HueCGU8rMjxEXxiPuD5BDk{{taggant private key}}u4MkFqeZyd4dZ1jvhTVqvbTLvyTJ		5HueCGU8rMjxEXxiPuD5BDk{{taggant private key}}u4MkFqeZyd4dZ1jvhTVqvbTLvyTJ
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	5HueCGU8rMjxEXxiPuD5BDk{{taggant private key}}u4MkFqeZyd4dZ1jvhTVqvbTLvyTJ		5HueCGU8rMjxEXxiPuD5BDk{{taggant private key}}u4MkFqeZyd4dZ1jvhTVqvbTLvyTJ
	2 - Convert it to a byte string using [[Base58Check encoding]]		2 - Convert it to a byte string using [[Base58Check encoding]]
	~~800C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D507A5B8D~~		800C28FCA386C7A227600B2FE50B7CAE11EC{{taggant private key}}86D3BF1FBE471BE89827E19D72AA1D507A5B8D
	3 - Drop the last 4 checksum bytes from the byte string		3 - Drop the last 4 checksum bytes from the byte string
	800C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D		800C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D
	4 - Drop the first byte (it should be 0x80). If the private key corresponded to a compressed public key, also drop the last byte (it should be 0x01). If it corresponded to a compressed public key, the WIF string will have started with K or L instead of 5 (or c instead of 9 on testnet). This is the private key.		4 - Drop the first byte (it should be 0x80). If the private key corresponded to a compressed public key, also drop the last byte (it should be 0x01). If it corresponded to a compressed public key, the WIF string will have started with K or L instead of 5 (or c instead of 9 on testnet). This is the private key.
	~~0C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D~~		0C28FCA386C7A227600B2FE50B7CAE1{{taggant private key}}1EC86D3BF1FBE471BE89827E19D72AA1D
	==WIF checksum checking==		==WIF checksum checking==
	1 - Take the Wallet Import Format string		1 - Take the Wallet Import Format string
	5HueCGU8rMjxEXxiPuD5BD{{taggant private key}}ku4MkFqeZyd4dZ1jvhTVqvbTLvyTJ		5HueCGU8rMjxEXxiPuD5BD{{taggant private key}}ku4MkFqeZyd4dZ1jvhTVqvbTLvyTJ
	2 - Convert it to a byte string using [[Base58Check encoding]]		2 - Convert it to a byte string using [[Base58Check encoding]]
	~~800C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D507A5B8D~~		800C28FCA386C7A227600B2FE50B7CAE11E{{taggant private key}}C86D3BF1FBE471BE89827E19D72AA1D507A5B8D
	3 - Drop the last 4 checksum bytes from the byte string		3 - Drop the last 4 checksum bytes from the byte string
	800C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D		800C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D

Taras: Added taggants to the sample private keys, a user accidentally sent 1 BTC to one believing it was their own after having imported it as a test a while earlier

2017-08-10T06:56:38Z

Added taggants to the sample private keys, a user accidentally sent 1 BTC to one believing it was their own after having imported it as a test a while earlier

← Older revision		Revision as of 06:56, 10 August 2017
Line 1:		Line 1:
			{{sample}}
	Wallet Import Format (WIF, also known as Wallet Export Format) is a way of encoding a private ECDSA key so as to make it easier to copy.		Wallet Import Format (WIF, also known as Wallet Export Format) is a way of encoding a private ECDSA key so as to make it easier to copy.

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	800C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D507A5B8D		800C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D507A5B8D
	7 - Convert the result from a byte string into a base58 string using [[Base58Check encoding]]. This is the Wallet Import Format		7 - Convert the result from a byte string into a base58 string using [[Base58Check encoding]]. This is the Wallet Import Format
	~~5HueCGU8rMjxEXxiPuD5BDku4MkFqeZyd4dZ1jvhTVqvbTLvyTJ~~		5HueCGU8rMjxEXxiPuD5BDk{{taggant private key}}u4MkFqeZyd4dZ1jvhTVqvbTLvyTJ

	==WIF to private key==		==WIF to private key==
	1 - Take a Wallet Import Format string		1 - Take a Wallet Import Format string
	~~5HueCGU8rMjxEXxiPuD5BDku4MkFqeZyd4dZ1jvhTVqvbTLvyTJ~~		5HueCGU8rMjxEXxiPuD5BDk{{taggant private key}}u4MkFqeZyd4dZ1jvhTVqvbTLvyTJ
	2 - Convert it to a byte string using [[Base58Check encoding]]		2 - Convert it to a byte string using [[Base58Check encoding]]
	800C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D507A5B8D		800C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D507A5B8D
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	==WIF checksum checking==		==WIF checksum checking==
	1 - Take the Wallet Import Format string		1 - Take the Wallet Import Format string
	~~5HueCGU8rMjxEXxiPuD5BDku4MkFqeZyd4dZ1jvhTVqvbTLvyTJ~~		5HueCGU8rMjxEXxiPuD5BD{{taggant private key}}ku4MkFqeZyd4dZ1jvhTVqvbTLvyTJ
	2 - Convert it to a byte string using [[Base58Check encoding]]		2 - Convert it to a byte string using [[Base58Check encoding]]
	800C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D507A5B8D		800C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D507A5B8D

Harding: Added Bitcoin Core documentation navbox

2015-08-17T16:07:45Z

Added Bitcoin Core documentation navbox

← Older revision		Revision as of 16:07, 17 August 2015
Line 48:		Line 48:

	{{Stub}}		{{Stub}}
			{{Bitcoin Core documentation}}

Gabegattis: added instructions for compressed keys

2014-06-18T16:30:51Z

added instructions for compressed keys

← Older revision		Revision as of 16:30, 18 June 2014
Line 8:		Line 8:
	1 - Take a private key		1 - Take a private key
	0C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D		0C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D
	2 - Add a 0x80 byte in front of it for mainnet addresses or 0xef for testnet addresses		2 - Add a 0x80 byte in front of it for mainnet addresses or 0xef for testnet addresses. Also add a 0x01 byte at the end if the private key will correspond to a compressed public key
	800C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D		800C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D
	3 - Perform SHA-256 hash on the extended key		3 - Perform SHA-256 hash on the extended key
Line 28:		Line 28:
	3 - Drop the last 4 checksum bytes from the byte string		3 - Drop the last 4 checksum bytes from the byte string
	800C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D		800C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D
	4 - Drop the first byte (it should be 0x80). This is the private key		4 - Drop the first byte (it should be 0x80). If the private key corresponded to a compressed public key, also drop the last byte (it should be 0x01). If it corresponded to a compressed public key, the WIF string will have started with K or L instead of 5 (or c instead of 9 on testnet). This is the private key.
	0C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D		0C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D
	==WIF checksum checking==		==WIF checksum checking==

Atheros at 22:32, 6 December 2013

2013-12-06T22:32:17Z

← Older revision		Revision as of 22:32, 6 December 2013
Line 8:		Line 8:
	1 - Take a private key		1 - Take a private key
	0C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D		0C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D
	2 - Add a 0x80 byte in front of it		2 - Add a 0x80 byte in front of it for mainnet addresses or 0xef for testnet addresses
	800C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D		800C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D
	3 - Perform SHA-256 hash on the extended key		3 - Perform SHA-256 hash on the extended key
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	6 - Make sure it is the same, as the last 4 bytes from point 2		6 - Make sure it is the same, as the last 4 bytes from point 2
	507A5B8D		507A5B8D
	7 - If they are, and the byte string from point 2 starts with 0x80, there is no error.		7 - If they are, and the byte string from point 2 starts with 0x80 (0xef for testnet addresses), then there is no error.

	{{Stub}}		{{Stub}}

Sgornick: Undo revision 36003 by Sgornick (talk)

2013-03-09T04:50:08Z

Undo revision 36003 by Sgornick (talk)

← Older revision		Revision as of 04:50, 9 March 2013
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	==Private key to WIF==		==Private key to WIF==
	1 - Take a private key ~~(Uppercase HEX)~~		1 - Take a private key
	0C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D		0C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D
	2 - Add a 0x80 byte in front of it		2 - Add a 0x80 byte in front of it

← Older revision		Revision as of 23:26, 19 July 2021
Line 1:		Line 1:
	{{sample}}		{{sample}}
	~~Wallet Import Format~~ (WIF, also known as ~~Wallet Export Format~~) is a way of encoding a private ECDSA key so as to make it easier to copy.		A '''wallet import format''' ('''WIF''', also known as a '''wallet export format''') is a way of encoding a private ECDSA key so as to make it easier to copy.

	A testing suite is available for encoding and decoding of WIF at:		A testing suite is available for encoding and decoding of WIF at:
Line 7:		Line 7:

	==Private key to WIF==		==Private key to WIF==
	1 - Take a private key		1. Take a private key.
	0C28FCA386C7A227600B2FE50B7CAE{{taggant private key}}11EC86D3BF1FBE471BE89827E19D72AA1D		0C28FCA386C7A227600B2FE50B7CAE{{taggant private key}}11EC86D3BF1FBE471BE89827E19D72AA1D
	2 - Add a 0x80 byte in front of it for mainnet addresses or 0xef for testnet addresses. Also add a 0x01 byte at the end if the private key will correspond to a compressed public key		2. Add a <code>0x80</code> byte in front of it for mainnet addresses or <code>0xef</code> for testnet addresses. Also add a <code>0x01</code> byte at the end if the private key will correspond to a compressed public key.
	800C28FCA386C7A227600B2FE50B7C{{taggant private key}}AE11EC86D3BF1FBE471BE89827E19D72AA1D		800C28FCA386C7A227600B2FE50B7C{{taggant private key}}AE11EC86D3BF1FBE471BE89827E19D72AA1D
	3 - Perform SHA-256 hash on the extended key		3. Perform SHA-256 hash on the extended key.
	8147786C4D15106333BF278D71DADAF1079EF2D2440A4DDE37D747DED5403592		8147786C4D15106333BF278D71DADAF1079EF2D2440A4DDE37D747DED5403592
	4 - Perform SHA-256 hash on result of SHA-256 hash		4. Perform SHA-256 hash on result of SHA-256 hash.
	507A5B8DFED0FC6FE8801743720CEDEC06AA5C6FCA72B07C49964492FB98A714		507A5B8DFED0FC6FE8801743720CEDEC06AA5C6FCA72B07C49964492FB98A714
	5 - Take the first 4 bytes of the second SHA-256 hash, this is the checksum		5. Take the first 4 bytes of the second SHA-256 hash; this is the checksum.
	507A5B8D		507A5B8D
	6 - Add the 4 checksum bytes from point 5 at the end of the extended key from point 2		6. Add the 4 checksum bytes from point 5 at the end of the extended key from point 2.
	800C28FCA386C7A227600B2FE50B7CAE11EC8{{taggant private key}}6D3BF1FBE471BE89827E19D72AA1D507A5B8D		800C28FCA386C7A227600B2FE50B7CAE11EC8{{taggant private key}}6D3BF1FBE471BE89827E19D72AA1D507A5B8D
	7 - Convert the result from a byte string into a base58 string using [[Base58Check encoding]]. This is the ~~Wallet Import Format~~		7. Convert the result from a byte string into a base58 string using [[Base58Check encoding]]. This is the wallet import format (WIF).
	5HueCGU8rMjxEXxiPuD5BDk{{taggant private key}}u4MkFqeZyd4dZ1jvhTVqvbTLvyTJ		5HueCGU8rMjxEXxiPuD5BDk{{taggant private key}}u4MkFqeZyd4dZ1jvhTVqvbTLvyTJ

	==WIF to private key==		==WIF to private key==
	1 - Take a ~~Wallet Import Format~~ string		1. Take a wallet import format (WIF) string.
	5HueCGU8rMjxEXxiPuD5BDk{{taggant private key}}u4MkFqeZyd4dZ1jvhTVqvbTLvyTJ		5HueCGU8rMjxEXxiPuD5BDk{{taggant private key}}u4MkFqeZyd4dZ1jvhTVqvbTLvyTJ
	2 - Convert it to a byte string using [[Base58Check encoding]]		2. Convert it to a byte string using [[Base58Check encoding]].
	800C28FCA386C7A227600B2FE50B7CAE11EC{{taggant private key}}86D3BF1FBE471BE89827E19D72AA1D507A5B8D		800C28FCA386C7A227600B2FE50B7CAE11EC{{taggant private key}}86D3BF1FBE471BE89827E19D72AA1D507A5B8D
	3 - Drop the last 4 checksum bytes from the byte string		3. Drop the last 4 checksum bytes from the byte string.
	800C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D		800C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D
	4 - Drop the first byte (it should be 0x80). If the private key corresponded to a compressed public key, also drop the last byte (it should be 0x01). If it corresponded to a compressed public key, the WIF string will have started with K or L instead of 5 (or c instead of 9 on testnet). This is the private key.		4. Drop the first byte (it should be <code>0x80</code>). If the private key corresponded to a compressed public key, also drop the last byte (it should be <code>0x01</code>). If it corresponded to a compressed public key, the WIF string will have started with K or L instead of 5 (or c instead of 9 on testnet). This is the private key.
	0C28FCA386C7A227600B2FE50B7CAE1{{taggant private key}}1EC86D3BF1FBE471BE89827E19D72AA1D		0C28FCA386C7A227600B2FE50B7CAE1{{taggant private key}}1EC86D3BF1FBE471BE89827E19D72AA1D
	==WIF checksum checking==		==WIF checksum checking==
	1 - Take the ~~Wallet Import Format~~ string		1. Take the wallet import format (WIF) string.
	5HueCGU8rMjxEXxiPuD5BD{{taggant private key}}ku4MkFqeZyd4dZ1jvhTVqvbTLvyTJ		5HueCGU8rMjxEXxiPuD5BD{{taggant private key}}ku4MkFqeZyd4dZ1jvhTVqvbTLvyTJ
	2 - Convert it to a byte string using [[Base58Check encoding]]		2. Convert it to a byte string using [[Base58Check encoding]].
	800C28FCA386C7A227600B2FE50B7CAE11E{{taggant private key}}C86D3BF1FBE471BE89827E19D72AA1D507A5B8D		800C28FCA386C7A227600B2FE50B7CAE11E{{taggant private key}}C86D3BF1FBE471BE89827E19D72AA1D507A5B8D
	3 - Drop the last 4 checksum bytes from the byte string		3. Drop the last 4 checksum bytes from the byte string.
	800C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D		800C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D
	~~3 -~~ Perform SHA-256 hash on the shortened string		4. Perform SHA-256 hash on the shortened string.
	8147786C4D15106333BF278D71DADAF1079EF2D2440A4DDE37D747DED5403592		8147786C4D15106333BF278D71DADAF1079EF2D2440A4DDE37D747DED5403592
	~~4 -~~ Perform SHA-256 hash on result of SHA-256 hash		5. Perform SHA-256 hash on result of SHA-256 hash.
	507A5B8DFED0FC6FE8801743720CEDEC06AA5C6FCA72B07C49964492FB98A714		507A5B8DFED0FC6FE8801743720CEDEC06AA5C6FCA72B07C49964492FB98A714
	~~5 -~~ Take the first 4 bytes of the second SHA-256 hash, this is the checksum		6. Take the first 4 bytes of the second SHA-256 hash; this is the checksum.
	507A5B8D		507A5B8D
	~~6 -~~ Make sure it is the same, as the last 4 bytes from point 2		7. Make sure it is the same as the last 4 bytes from point 2.
	507A5B8D		507A5B8D
	~~7 -~~ If they are, and the byte string from point 2 starts with 0x80 (0xef for testnet addresses), then there is no error.		8. If they are, and the byte string from point 2 starts with <code>0x80</code> (<code>0xef</code> for testnet addresses), then there is no error.

	{{Stub}}		{{Stub}}
	{{Bitcoin Core documentation}}		{{Bitcoin Core documentation}}