Struct SHA1 

pub struct SHA1 { /* private fields */ }

Available on crate features hash and insecure_sha1 only.

安全散列算法1流式计算器（Secure Hash Algorithm 1 Stream Mode Calculator）

安全散列算法1是一种密码杂凑算法，美国国家安全局设计，并由美国国家标准技术研究所发布为联邦资料处理标准。
In cryptography, SHA-1 (Secure Hash Algorithm 1) is a hash function which was designed by the United States National Security Agency, and is a U.S. Federal Information Processing Standard.

SHA-1可以生成一个被称为消息摘要的160位（20字节）杂凑值，杂凑值通常的呈现形式为40个十六进制数。
It takes an input and produces a 160-bit (20-byte) hash value known as a message digest - typically rendered as 40 hexadecimal digits.

示例（Examples）

use neuedu_cryptos::hashs::{HashImpl, SHA1};

const MESSAGE: [u8; 3] = [
    0x61, 0x62, 0x63,
];

let mut instance = SHA1::default();
instance.update(&MESSAGE)?;
let digest = instance.r#final()?;

assert_eq!(digest, [
    0xA9, 0x99, 0x3E, 0x36, 0x47, 0x06, 0x81, 0x6A,
    0xBA, 0x3E, 0x25, 0x71, 0x78, 0x50, 0xC2, 0x6C,
    0x9C, 0xD0, 0xD8, 0x9D,
]);

Trait Implementations

impl Default for SHA1

fn default() -> Self

Returns the “default value” for a type.

impl HashImpl for SHA1

fn block_size(&self) -> usize

块长度：64字节。
Block size: 64 Bytes.

fn output_size(&self) -> usize

输出长度：20字节。
Output size: 20 Bytes.

fn update(&mut self, message: &[u8]) -> Result<(), Error>

填入任意长度的待计算的消息。
Feed a message of any length to be calculated.

fn final(&mut self) -> Result<Vec<u8>, Error>

结束填入待计算的消息。
End feeding in messages to be calculated.