base-u256 encode/decode
base-u256 is to utf-8 as base-64 is to ascii
base64 takes 3 bytes at a time and then converts them to 4 bytes each with 64 possibilities.
| bits | possibilities |
|---|---|
| 2^24 | 16777216 |
| 64^4 | 16777216 |
base-u256 takes 3 bytes at a time and then converts them to 3 utf-8 2 byte characters each with 256 possibilities.
The encoded bytes is exactly two times larger than the original binary.
| bits | possibilities |
|---|---|
| 2^24 | 16777216 |
| 256^3 | 16777216 |
base-u1024 encode/decode
base-u1024 takes 30 bits at a time and then converts them to 3 utf-8 2 byte characters each with 1024 possibilities.
The encoded bytes is 1.5 times larger than the original binary.
| bits | possibilities |
|---|---|
| 2^30 | 1073741824 |
| 1024^3 | 1073741824 |