我想将字符串(SHA256哈希)转换为Rust中的十六进制:
extern crate crypto;
extern crate rustc_serialize;
use rustc_serialize::hex::ToHex;
use crypto::digest::Digest;
use crypto::sha2::Sha256;
fn gen_sha256(hashme: &str) -> String {
let mut sh = Sha256::new();
sh.input_str(hashme);
sh.result_str()
}
fn main() {
let hash = gen_sha256("example");
hash.to_hex()
}
编者说:
error[E0599]: no method named `to_hex` found for type `std::string::String` in the current scope
--> src/main.rs:18:10
|
18 | hash.to_hex()
| ^^^^^^
我能看出这是真的；看起来是it's only implemented for [u8].
我该怎么办？在Rust中是否没有实现将字符串转换为十六进制的方法？
我的Cargo .toml依赖项:
[dependencies]
rust-crypto = "0.2.36"
rustc-serialize = "0.3.24"
edit我刚从rust crypto库中意识到字符串是already的十六进制格式.哦.