[−][src]Module extendhash::sha512
Compute SHA-512 hashes and hash extensions.
Example
let secret_data = "This is a secret!".as_bytes(); let hash = sha512::compute_hash(secret_data); let secret_data_length = secret_data.len(); // Now we try computing a hash extension, assuming that // `secret_data` is not available. We only need `hash` and // `secret_data_length`. let appended_message = "Appended message.".as_bytes(); let combined_hash = sha512::extend_hash( hash, secret_data_length, appended_message); // Now we verify that `combined_hash` matches the // concatenation (note the intermediate padding): let mut combined_data = Vec::<u8>::new(); combined_data.extend_from_slice(secret_data); let padding = sha512::padding_for_length(secret_data_length); combined_data.extend_from_slice(padding.as_slice()); combined_data.extend_from_slice(appended_message); assert_eq!( &combined_hash[..], &sha512::compute_hash(combined_data.as_slice())[..]);
Functions
compute_hash | Compute the SHA-512 hash of the input data |
extend_hash | Calculate a SHA-512 hash extension. |
padding_for_length | Compute the SHA-512 padding for the given input length. |
padding_length_for_input_length | Compute the SHA-512 padding length (in bytes) for the given input length. |