80 lines
2.1 KiB
Rust
80 lines
2.1 KiB
Rust
use hex::encode;
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use sha1::Sha1;
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use sha2::{Digest, Sha256, Sha512};
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use super::{Error, Result};
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/// create a cryptographic hash from a string (sha1, sha256, sha512)
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///
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/// ```
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/// use homedisk_utils::crypto::hasher;
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///
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/// let sha1 = hasher("SHA-1", "test string".to_string()).unwrap();
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/// assert_eq!(sha1, "661295c9cbf9d6b2f6428414504a8deed3020641".to_string())
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/// ```
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pub fn hasher(algo: &str, input: String) -> Result<String> {
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let hash = match algo {
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"SHA-1" | "SHA1" | "Sha1" | "sha1" => {
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let mut hasher = Sha1::new();
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hasher.update(input.as_bytes());
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encode(hasher.finalize())
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}
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"SHA-256" | "SHA256" | "Sha256" | "sha256" => {
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let mut hasher = Sha256::new();
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hasher.update(input.as_bytes());
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encode(hasher.finalize())
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}
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"SHA-512" | "SHA512" | "Sha512" | "sha512" => {
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let mut hasher = Sha512::new();
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hasher.update(input.as_bytes());
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encode(hasher.finalize())
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}
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_ => Err(Error::UnknownAlgorithm("digest", algo.to_string()))?,
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};
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Ok(hash)
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}
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#[cfg(test)]
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mod tests {
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use crate::crypto::{hasher, Error};
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#[test]
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fn sha1() {
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let sha1 = hasher("sha1", "test string".to_string()).unwrap();
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assert_eq!(sha1, "661295c9cbf9d6b2f6428414504a8deed3020641".to_string());
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}
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#[test]
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fn sha256() {
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let sha1 = hasher("sha256", "test string".to_string()).unwrap();
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assert_eq!(
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sha1,
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"d5579c46dfcc7f18207013e65b44e4cb4e2c2298f4ac457ba8f82743f31e930b".to_string()
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);
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}
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#[test]
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fn sha512() {
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let sha1 = hasher("sha512", "test string".to_string()).unwrap();
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assert_eq!(
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sha1,
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"10e6d647af44624442f388c2c14a787ff8b17e6165b83d767ec047768d8cbcb71a1a3226e7cc7816bc79c0427d94a9da688c41a3992c7bf5e4d7cc3e0be5dbac".to_string()
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);
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}
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#[test]
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fn unknown_algorithm() {
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let algo = "unknow_algo";
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let err = hasher(algo, "test string".to_string()).unwrap_err();
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assert_eq!(err, Error::UnknownAlgorithm("digest", algo.to_string()));
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}
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}
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