DBishop

Drunken Bishop: 醉酒主教

👀 哈希指纹可视化算法, 就像 OpenSSH 那样!

> dbishop str fc94b0c1e5b0987c5843997697ee9fb7
fingerprint of str `fc94b0c1e5b0987c5843997697ee9fb7`:
+-----------------+
|       .=o.  .   |
|     . *+*. o    |
|      =.*..o     |
|       o + ..    |
|        S o.     |
|         o  .    |
|          .  . . |
|              o .|
|               E.|
+-----------------+

使用

> dbishop --help
The hash fingerprint visualization algorithm, like OpenSSH

Usage: dbishop [OPTIONS] <COMMAND>

Commands:
  str   Fingerprint of hex string
  byte  Fingerprint of a byte array
  file  Fingerprint of a file, use sha256
  help  Print this message or the help of the given subcommand(s)

Options:
      --story    Read the story of Bishop Peter
  -h, --help     Print help
  -V, --version  Print version

例子

获取一段十六进制字符串的指纹

e.g. fc94b0c1e5b0987c5843997697ee9fb7

> dbishop str fc94b0c1e5b0987c5843997697ee9fb7
fingerprint of str `fc94b0c1e5b0987c5843997697ee9fb7`:
+-----------------+
|       .=o.  .   |
|     . *+*. o    |
|      =.*..o     |
|       o + ..    |
|        S o.     |
|         o  .    |
|          .  . . |
|              o .|
|               E.|
+-----------------+

获取 base64 编码的指纹

e.g. AMeItYIXNWOp2Qc91TR1iyFWutrVgUfLKCJ3B8/U/QM

> cat data.base64
AMeItYIXNWOp2Qc91TR1iyFWutrVgUfLKCJ3B8/U/QM

> cat data.base64 | base64 -d 2>/dev/null | dbishop byte -
fingerprint of bytes on file `-`:
+-----------------+
|  .+B=...o*o=.o. |
| ..o+*+  ..O E.o.|
|. o+..o.o + B B .|
| .o.. .+ o + o o.|
|     .  S . . . .|
|         o .     |
|        . .      |
|                 |
|                 |
+-----------------+

随机生成一个指纹

> dd if=/dev/random bs=1 count=16 2>/dev/null | dbishop byte -q -
+-----------------+
|                 |
|         .       |
|        . o      |
|         o .     |
|        S +      |
|       . * +     |
|      o + B      |
|     . o =E=..   |
|        ..**=.   |
+-----------------+

获取文件的指纹

> dbishop file testdata
fingerprint of sha256 on file `testdata`:
+-----------------+
|                 |
|                 |
|        +        |
|       o o      .|
|        S .    .+|
|         = =ooO=.|
|          O.OB=Oo|
|         ..Bo*EoB|
|          +o+o+=/|
+-----------------+

这实际上等同于

dbishop str $(sha256sum testdata | cut -d ' ' -f 1)

参考

• The drunken bishop: An analysis of the OpenSSH fingerprint visualization algorithm