Profanity is a high performance (probably the fastest!) vanity address generator for Ethereum. Create cool customized addresses that you never realized you needed! Recieve Ether in style! Wow!
A previous version of this project has a known critical issue due to a bad source of randomness. The issue enables attackers to recover private key from public key: https://blog.1inch.io/a-vulnerability-disclosed-in-profanity-an-ethereum-vanity-address-tool-68ed7455fc8c
This project "profanity2" was forked from the original project and modified to guarantee safety by design. This means source code of this project do not require any audits, but still guarantee safe usage.
Project "profanity2" is not generating key anymore, instead it adjusts user-provided public key until desired vanity address will be discovered. Users provide seed public key in form of 128-symbol hex string with -z parameter flag. Resulting private key should be used to be added to seed private key to achieve final private key of the desired vanity address (private keys are just 256-bit numbers). Running "profanity2" can even be outsourced to someone completely unreliable - it is still safe by design.
Generate private key and public key via openssl in terminal (remove prefix "04" from public key):
$ openssl ecparam -genkey -name secp256k1 -text -noout -outform DER | xxd -p -c 1000 | sed 's/41534e31204f49443a20736563703235366b310a30740201010420/Private Key: /' | sed 's/a00706052b8104000aa144034200/\'$'\nPublic Key: /'Derive public key from existing private key via openssl in terminal (remove prefix "04" from public key):
$ openssl ec -inform DER -text -noout -in <(cat <(echo -n "302e0201010420") <(echo -n "PRIVATE_KEY_HEX") <(echo -n "a00706052b8104000a") | xxd -r -p) 2>/dev/null | tail -6 | head -5 | sed 's/[ :]//g' | tr -d '\n' && echoUse private keys as 64-symbol hexadecimal string WITHOUT 0x prefix:
(echo 'ibase=16;obase=10' && (echo '(PRIVATE_KEY_A + PRIVATE_KEY_B) % FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFC2F' | tr '[:lower:]' '[:upper:]')) | bcUse private keys as 64-symbol hexadecimal string WITH 0x prefix:
$ python3
>>> hex((PRIVATE_KEY_A + PRIVATE_KEY_B) % 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFC2F)usage: ./profanity2 [OPTIONS]
Mandatory args:
-z Seed public key to start, add it's private key
to the "profanity2" resulting private key.
Basic modes:
--benchmark Run without any scoring, a benchmark.
--zeros Score on zeros anywhere in hash.
--letters Score on letters anywhere in hash.
--numbers Score on numbers anywhere in hash.
--mirror Score on mirroring from center.
--leading-doubles Score on hashes leading with hexadecimal pairs
Modes with arguments:
--leading <single hex> Score on hashes leading with given hex character.
--matching <hex string> Score on hashes matching given hex string.
Advanced modes:
--contract Instead of account address, score the contract
address created by the account's zeroth transaction.
--leading-range Scores on hashes leading with characters within
given range.
--range Scores on hashes having characters within given
range anywhere.
Range:
-m, --min <0-15> Set range minimum (inclusive), 0 is '0' 15 is 'f'.
-M, --max <0-15> Set range maximum (inclusive), 0 is '0' 15 is 'f'.
Device control:
-s, --skip <index> Skip device given by index.
-n, --no-cache Don't load cached pre-compiled version of kernel.
Tweaking:
-w, --work <size> Set OpenCL local work size. [default = 64]
-W, --work-max <size> Set OpenCL maximum work size. [default = -i * -I]
-i, --inverse-size Set size of modular inverses to calculate in one
work item. [default = 255]
-I, --inverse-multiple Set how many above work items will run in
parallell. [default = 16384]
Examples:
./profanity2 --leading f -z HEX_PUBLIC_KEY_128_CHARS_LONG
./profanity2 --matching dead -z HEX_PUBLIC_KEY_128_CHARS_LONG
./profanity2 --matching badXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXbad -z HEX_PUBLIC_KEY_128_CHARS_LONG
./profanity2 --leading-range -m 0 -M 1 -z HEX_PUBLIC_KEY_128_CHARS_LONG
./profanity2 --leading-range -m 10 -M 12 -z HEX_PUBLIC_KEY_128_CHARS_LONG
./profanity2 --range -m 0 -M 1 -z HEX_PUBLIC_KEY_128_CHARS_LONG
./profanity2 --contract --leading 0 -z HEX_PUBLIC_KEY_128_CHARS_LONG
About:
profanity2 is a vanity address generator for Ethereum that utilizes
computing power from GPUs using OpenCL.
Forked "profanity2":
Author: 1inch Network <[email protected]>
Disclaimer:
This project "profanity2" was forked from the original project and
modified to guarantee "SAFETY BY DESIGN". This means source code of
this project doesn't require any audits, but still guarantee safe usage.
From original "profanity":
Author: Johan Gustafsson <[email protected]>
Beer donations: 0x000dead000ae1c8e8ac27103e4ff65f42a4e9203
Disclaimer:
Always verify that a private key generated by this program corresponds to
the public key printed by importing it to a wallet of your choice. This
program like any software might contain bugs and it does by design cut
corners to improve overall performance.
| Model | Clock Speed | Memory Speed | Modified straps | Speed | Time to match eight characters |
|---|---|---|---|---|---|
| GTX 1070 OC | 1950 | 4450 | NO | 179.0 MH/s | ~24s |
| GTX 1070 | 1750 | 4000 | NO | 163.0 MH/s | ~26s |
| RX 480 | 1328 | 2000 | YES | 120.0 MH/s | ~36s |
| Apple Silicon M1 (8-core GPU) |
- | - | - | 45.0 MH/s | ~97s |
| Apple Silicon M1 Max (32-core GPU) |
- | - | - | 172.0 MH/s | ~25s |