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fix PBKDF2 example (#538)

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Pietro Danzi 2019-12-17 04:15:00 +01:00 committed by Andrew Gauger
parent 2a57fa3904
commit ff903b0b66
1 changed files with 8 additions and 7 deletions
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15
src/cryptography/encryption/pbkdf2.md
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@ -17,10 +17,11 @@ use data_encoding::HEXUPPER;
use ring::error::Unspecified;
use ring::rand::SecureRandom;
use ring::{digest, pbkdf2, rand};
use std::num::NonZeroU32;
fn main() -> Result<(), Unspecified> {
const CREDENTIAL_LEN: usize = digest::SHA512_OUTPUT_LEN;
const N_ITER: u32 = 100_000;
let n_iter = NonZeroU32::new(100_000).unwrap();
let rng = rand::SystemRandom::new();
let mut salt = [0u8; CREDENTIAL_LEN];
@ -29,8 +30,8 @@ fn main() -> Result<(), Unspecified> {
let password = "Guess Me If You Can!";
let mut pbkdf2_hash = [0u8; CREDENTIAL_LEN];
pbkdf2::derive(
&digest::SHA512,
N_ITER,
pbkdf2::PBKDF2_HMAC_SHA512,
n_iter,
&salt,
password.as_bytes(),
&mut pbkdf2_hash,
@ -39,16 +40,16 @@ fn main() -> Result<(), Unspecified> {
println!("PBKDF2 hash: {}", HEXUPPER.encode(&pbkdf2_hash));
let should_succeed = pbkdf2::verify(
&digest::SHA512,
N_ITER,
pbkdf2::PBKDF2_HMAC_SHA512,
n_iter,
&salt,
password.as_bytes(),
&pbkdf2_hash,
);
let wrong_password = "Definitely not the correct password";
let should_fail = pbkdf2::verify(
&digest::SHA512,
N_ITER,
pbkdf2::PBKDF2_HMAC_SHA512,
n_iter,
&salt,
wrong_password.as_bytes(),
&pbkdf2_hash,