### Simplest BitCrack Usage

Source: https://github.com/brichard19/bitcrack/blob/master/README.md

This is the most basic way to run BitCrack, targeting a single Bitcoin address. The keyspace starts from 0 and CUDA parameters are automatically determined.

```bash
xxBitCrack.exe 1FshYsUh3mqgsG29XpZ23eLjWV8Ur3VwH
```

--------------------------------

### BitCrack Usage with Specific Keyspace Start

Source: https://github.com/brichard19/bitcrack/blob/master/README.md

Use the `--keyspace` option to begin the search from a specific private key. This is useful for resuming a search or targeting a particular range.

```bash
xxBitCrack.exe --keyspace 766519C977831678F0000000000 1FshYsUh3mqgsG29XpZ23eLjWV8Ur3VwH
```

--------------------------------

### BitCrack Usage with Keyspace Range

Source: https://github.com/brichard19/bitcrack/blob/master/README.md

Specifies a distinct range for the private key search using the `--keyspace` option with a START:END format.

```bash
xxBitCrack.exe --keyspace 80000000:ffffffff 1FshYsUh3mqgsG29XpZ23eLjWV8Ur3VwH
```

--------------------------------

### Build BitCrack with CUDA Support (Linux)

Source: https://github.com/brichard19/bitcrack/blob/master/README.md

Builds BitCrack on Linux with CUDA support enabled using the make command. Ensure CUDA Toolkit 10.1 or compatible is installed.

```bash
make BUILD_CUDA=1
```

--------------------------------

### Build BitCrack with CUDA and OpenCL Support (Linux)

Source: https://github.com/brichard19/bitcrack/blob/master/README.md

Builds BitCrack on Linux with both CUDA and OpenCL support enabled using the make command. This requires both respective toolkits/SDKs to be installed.

```bash
make BUILD_CUDA=1 BUILD_OPENCL=1
```

--------------------------------

### BitCrack Usage with Progress Saving

Source: https://github.com/brichard19/bitcrack/blob/master/README.md

Utilizes the `--continue` option to periodically save and load progress, enabling recovery from interruptions. The example shows saving progress and then resuming.

```bash
xxBitCrack.exe --keyspace 80000000:ffffffff 1FshYsUh3mqgsG29XpZ23eLjWV8Ur3VwH
...
GeForce GT 640   224/1024MB | 1 target 10.33 MKey/s (1,244,659,712 total) [00:01:58]
^C
xxBitCrack.exe --keyspace 80000000:ffffffff 1FshYsUh3mqgsG29XpZ23eLjWV8Ur3VwH
...
GeForce GT 640   224/1024MB | 1 target 10.33 MKey/s (1,357,905,920 total) [00:02:12]
```

--------------------------------

### BitCrack Command-Line Usage

Source: https://github.com/brichard19/bitcrack/blob/master/README.md

This shows the general command-line syntax for BitCrack, including available options for input/output files, device selection, performance tuning, keyspace specification, and progress saving.

```bash
xxBitCrack.exe [OPTIONS] [TARGETS]

Where [TARGETS] are one or more Bitcoin address

Options:

-i, --in FILE
    Read addresses from FILE, one address per line. If FILE is "-" then stdin is read

-o, --out FILE
    Append private keys to FILE, one per line

-d, --device N
    Use device with ID equal to N

-b, --blocks BLOCKS
    The number of CUDA blocks

-t, --threads THREADS
    Threads per block

-p, --points NUMBER
    Each thread will process NUMBER keys at a time

--keyspace KEYSPACE
    Specify the range of keys to search, where KEYSPACE is in the format,

	START:END start at key START, end at key END
	START:+COUNT start at key START and end at key START + COUNT
    :END start at key 1 and end at key END
	:+COUNT start at key 1 and end at key 1 + COUNT

-c, --compressed
    Search for compressed keys (default). Can be used with -u to also search uncompressed keys

-u, --uncompressed
    Search for uncompressed keys, can be used with -c to search compressed keys

--compression MODE
    Specify the compression mode, where MODE is 'compressed' or 'uncompressed' or 'both'

--list-devices
    List available devices

--stride NUMBER
    Increment by NUMBER

--share M/N
    Divide the keyspace into N equal sized shares, process the Mth share

--continue FILE
    Save/load progress from FILE
```

--------------------------------

### BitCrack Usage with Multiple Targets

Source: https://github.com/brichard19/bitcrack/blob/master/README.md

Demonstrates how to search for multiple Bitcoin addresses simultaneously. Targets can be provided directly on the command line or listed in a file.

```bash
xxBitCrack.exe 1FshYsUh3mqgsG29XpZ23eLjWV8Ur3VwH 15JhYXn6Mx3oF4Y7PcTAv2wVVAuCFFQNiP 19EEC52krRUK1RkUAEZmQdjTyHT7Gp1TYT
```

--------------------------------

### Build BitCrack with OpenCL Support (Linux)

Source: https://github.com/brichard19/bitcrack/blob/master/README.md

Builds BitCrack on Linux with OpenCL support enabled using the make command. An OpenCL SDK is required.

```bash
make BUILD_OPENCL=1
```

--------------------------------

### BitCrack Usage with Performance Tuning Parameters

Source: https://github.com/brichard19/bitcrack/blob/master/README.md

Adjusts performance by specifying the number of CUDA blocks, threads per block, and keys processed per thread using the -b, -t, and -p options.

```bash
xxBitCrack.exe -b 32 -t 256 -p 16 1FshYsUh3mqgsG29XpZ23eLjWV8Ur3VwH
```

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