vep

可变长度扩展传递函数。（即短密码到长哈希密码）

| 文档 | 最新笔记 |

[dependencies]
vep = "2.1.0"

或

[dependencies]
vep = { version = "2.1.0", default-features = false } # no-std

如何使用

use vep::Vep;
use sha2::{Sha256, Digest}; // can be any hasher(dyn Digest from `digest` crate)

let src = b"hello vep!"; // <- 10 bytes
let expanded = Vep(Sha256::new()).expand(src); // -> 10 * 32 bytes == `320 bytes`

assert_eq!(expanded.len(), Vep::<Sha256>::output_size_calc(src));

固定大小可用

let src = b"hello vep!"; // <- 10 bytes
let result = Vep(Sha256::new()).expand_and_then_reduce(src); // -> 320 bytes -> `32 bytes` (reduced)

assert_eq!(result.len(), Vep::<Sha256>::reduced_size_calc());

* 算法