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Rust Generate SHA1 Hash

· One min read
forfd8960
forfd8960
Author

the crate​

[dependencies]
sha1-checked = "0.10.0"
base16ct = { version="0.2.0", features=["alloc"] }

Generate SHA1 Hash bytes​

  • build sha1 hasher with Sha1::new()
  • update the hasher with hasher.update(content)
  • call hasher.try_finalize() to get the hash
  • generate hash bytes with
let arr = hf.hash();
arr.to_vec()
use sha1_checked::{Digest, Sha1};

pub fn compute_hash(t: &ObjectType, content: &[u8]) -> Vec<u8> {
    let mut hasher = Sha1::new();
    hasher.update(object_type_bytes(t));
    hasher.update(b" ");
    hasher.update(format!("{}", content.len()).as_bytes());
    hasher.update(b"\0");
    hasher.update(content);

    let hf = hasher.try_finalize();
    let arr = hf.hash();
    arr.to_vec()
}

Generate SHA1 Hash String​

fn gen_hash_str(hash_bytes: &[u8]) -> String {
    base16ct::lower::encode_string(hash_bytes)
}