diff options
Diffstat (limited to 'src/demo_hash.rs')
-rw-r--r-- | src/demo_hash.rs | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/demo_hash.rs b/src/demo_hash.rs new file mode 100644 index 0000000..115a10f --- /dev/null +++ b/src/demo_hash.rs @@ -0,0 +1,23 @@ +use sha2::Digest; + +pub fn hash_bigint(n: usize, i: &num::BigInt) -> Vec<u8> +{ + let (_, bytes) = i.to_bytes_be(); + assert!(bytes.len() <= n); + + let mut hash = sha2::Sha512::new(); + hash.input(vec![0; n - bytes.len()]); + hash.input(bytes); + + hash.result().to_vec() +} + +pub fn show_hash(h: &Vec<u8>) +{ + for x in h + { + print!("{:02x}", x); + } + + println!(); +} |