368 lines
12 KiB
Rust
368 lines
12 KiB
Rust
use libc::c_int;
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use std::ptr::null;
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use crypto::symm_internal::evpc;
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use crypto::hash;
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use crypto::symm;
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use ffi;
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#[derive(Clone, Eq, PartialEq, Hash, Debug)]
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pub struct KeyIvPair
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{
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pub key: Vec<u8>,
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pub iv: Vec<u8>
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}
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/// Derives a key and an IV from various parameters.
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///
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/// If specified `salt` must be 8 bytes in length.
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///
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/// If the total key and IV length is less than 16 bytes and MD5 is used then
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/// the algorithm is compatible with the key derivation algorithm from PKCS#5
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/// v1.5 or PBKDF1 from PKCS#5 v2.0.
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///
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/// New applications should not use this and instead use `pbkdf2_hmac_sha1` or
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/// another more modern key derivation algorithm.
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pub fn evp_bytes_to_key_pbkdf1_compatible(typ: symm::Type, message_digest_type: hash::Type,
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data: &[u8], salt: Option<&[u8]>,
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count: u32) -> KeyIvPair {
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unsafe {
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let salt_ptr = match salt {
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Some(salt) => {
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assert_eq!(salt.len(), ffi::PKCS5_SALT_LEN as usize);
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salt.as_ptr()
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},
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None => null()
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};
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ffi::init();
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let (evp, keylen, _) = evpc(typ);
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let message_digest = message_digest_type.evp_md();
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let mut key = vec![0; keylen as usize];
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let mut iv = vec![0; keylen as usize];
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let ret: c_int = ffi::EVP_BytesToKey(evp,
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message_digest,
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salt_ptr,
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data.as_ptr(),
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data.len() as c_int,
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count as c_int,
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key.as_mut_ptr(),
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iv.as_mut_ptr());
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assert!(ret == keylen as c_int);
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KeyIvPair {
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key: key,
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iv: iv
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}
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}
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}
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/// Derives a key from a password and salt using the PBKDF2-HMAC-SHA1 algorithm.
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pub fn pbkdf2_hmac_sha1(pass: &str, salt: &[u8], iter: usize, keylen: usize) -> Vec<u8> {
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unsafe {
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assert!(iter >= 1);
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assert!(keylen >= 1);
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let mut out = Vec::with_capacity(keylen);
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ffi::init();
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let r = ffi::PKCS5_PBKDF2_HMAC_SHA1(
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pass.as_ptr(), pass.len() as c_int,
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salt.as_ptr(), salt.len() as c_int,
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iter as c_int, keylen as c_int,
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out.as_mut_ptr());
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if r != 1 { panic!(); }
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out.set_len(keylen);
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out
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}
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}
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/// Derives a key from a password and salt using the PBKDF2-HMAC-SHA256 algorithm.
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#[cfg(feature = "pkcs5_pbkdf2_hmac")]
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pub fn pbkdf2_hmac_sha256(pass: &str, salt: &[u8], iter: usize, keylen: usize) -> Vec<u8> {
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pbkdf2_hmac_sha(pass, salt, iter, unsafe { ffi::EVP_sha256() }, keylen)
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}
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/// Derives a key from a password and salt using the PBKDF2-HMAC-SHA512 algorithm.
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#[cfg(feature = "pkcs5_pbkdf2_hmac")]
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pub fn pbkdf2_hmac_sha512(pass: &str, salt: &[u8], iter: usize, keylen: usize) -> Vec<u8> {
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pbkdf2_hmac_sha(pass, salt, iter, unsafe { ffi::EVP_sha512() }, keylen)
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}
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/// Derives a key from a password and salt using the PBKDF2-HMAC algorithm with a digest function.
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#[cfg(feature = "pkcs5_pbkdf2_hmac")]
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fn pbkdf2_hmac_sha(pass: &str, salt: &[u8], iter: usize, digest: *const ffi::EVP_MD, keylen: usize) -> Vec<u8> {
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unsafe {
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assert!(iter >= 1);
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assert!(keylen >= 1);
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let mut out = Vec::with_capacity(keylen);
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ffi::init();
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let r = ffi::PKCS5_PBKDF2_HMAC(
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pass.as_ptr(), pass.len() as c_int,
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salt.as_ptr(), salt.len() as c_int,
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iter as c_int, digest, keylen as c_int,
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out.as_mut_ptr());
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if r != 1 { panic!(); }
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out.set_len(keylen);
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out
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}
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}
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#[cfg(test)]
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mod tests {
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use crypto::hash;
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use crypto::symm;
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// Test vectors from
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// http://tools.ietf.org/html/draft-josefsson-pbkdf2-test-vectors-06
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#[test]
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fn test_pbkdf2_hmac_sha1() {
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assert_eq!(
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super::pbkdf2_hmac_sha1(
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"password",
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"salt".as_bytes(),
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1,
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20
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),
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vec!(
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0x0c_u8, 0x60_u8, 0xc8_u8, 0x0f_u8, 0x96_u8, 0x1f_u8, 0x0e_u8,
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0x71_u8, 0xf3_u8, 0xa9_u8, 0xb5_u8, 0x24_u8, 0xaf_u8, 0x60_u8,
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0x12_u8, 0x06_u8, 0x2f_u8, 0xe0_u8, 0x37_u8, 0xa6_u8
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)
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);
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assert_eq!(
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super::pbkdf2_hmac_sha1(
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"password",
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"salt".as_bytes(),
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2,
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20
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),
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vec!(
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0xea_u8, 0x6c_u8, 0x01_u8, 0x4d_u8, 0xc7_u8, 0x2d_u8, 0x6f_u8,
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0x8c_u8, 0xcd_u8, 0x1e_u8, 0xd9_u8, 0x2a_u8, 0xce_u8, 0x1d_u8,
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0x41_u8, 0xf0_u8, 0xd8_u8, 0xde_u8, 0x89_u8, 0x57_u8
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)
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);
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assert_eq!(
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super::pbkdf2_hmac_sha1(
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"password",
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"salt".as_bytes(),
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4096,
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20
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),
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vec!(
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0x4b_u8, 0x00_u8, 0x79_u8, 0x01_u8, 0xb7_u8, 0x65_u8, 0x48_u8,
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0x9a_u8, 0xbe_u8, 0xad_u8, 0x49_u8, 0xd9_u8, 0x26_u8, 0xf7_u8,
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0x21_u8, 0xd0_u8, 0x65_u8, 0xa4_u8, 0x29_u8, 0xc1_u8
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)
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);
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assert_eq!(
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super::pbkdf2_hmac_sha1(
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"password",
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"salt".as_bytes(),
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16777216,
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20
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),
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vec!(
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0xee_u8, 0xfe_u8, 0x3d_u8, 0x61_u8, 0xcd_u8, 0x4d_u8, 0xa4_u8,
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0xe4_u8, 0xe9_u8, 0x94_u8, 0x5b_u8, 0x3d_u8, 0x6b_u8, 0xa2_u8,
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0x15_u8, 0x8c_u8, 0x26_u8, 0x34_u8, 0xe9_u8, 0x84_u8
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)
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);
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assert_eq!(
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super::pbkdf2_hmac_sha1(
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"passwordPASSWORDpassword",
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"saltSALTsaltSALTsaltSALTsaltSALTsalt".as_bytes(),
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4096,
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25
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),
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vec!(
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0x3d_u8, 0x2e_u8, 0xec_u8, 0x4f_u8, 0xe4_u8, 0x1c_u8, 0x84_u8,
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0x9b_u8, 0x80_u8, 0xc8_u8, 0xd8_u8, 0x36_u8, 0x62_u8, 0xc0_u8,
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0xe4_u8, 0x4a_u8, 0x8b_u8, 0x29_u8, 0x1a_u8, 0x96_u8, 0x4c_u8,
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0xf2_u8, 0xf0_u8, 0x70_u8, 0x38_u8
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)
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);
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assert_eq!(
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super::pbkdf2_hmac_sha1(
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"pass\x00word",
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"sa\x00lt".as_bytes(),
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4096,
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16
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),
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vec!(
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0x56_u8, 0xfa_u8, 0x6a_u8, 0xa7_u8, 0x55_u8, 0x48_u8, 0x09_u8,
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0x9d_u8, 0xcc_u8, 0x37_u8, 0xd7_u8, 0xf0_u8, 0x34_u8, 0x25_u8,
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0xe0_u8, 0xc3_u8
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)
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);
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}
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// Test vectors from
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// https://git.lysator.liu.se/nettle/nettle/blob/nettle_3.1.1_release_20150424/testsuite/pbkdf2-test.c
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#[test]
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#[cfg(feature = "pkcs5_pbkdf2_hmac")]
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fn test_pbkdf2_hmac_sha256() {
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assert_eq!(
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super::pbkdf2_hmac_sha256(
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"passwd",
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"salt".as_bytes(),
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1,
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16
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),
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vec!(
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0x55_u8, 0xac_u8, 0x04_u8, 0x6e_u8, 0x56_u8, 0xe3_u8, 0x08_u8,
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0x9f_u8, 0xec_u8, 0x16_u8, 0x91_u8, 0xc2_u8, 0x25_u8, 0x44_u8,
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0xb6_u8, 0x05_u8
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)
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);
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assert_eq!(
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super::pbkdf2_hmac_sha256(
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"Password",
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"NaCl".as_bytes(),
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80000,
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16
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),
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vec!(
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0x4d_u8, 0xdc_u8, 0xd8_u8, 0xf6_u8, 0x0b_u8, 0x98_u8, 0xbe_u8,
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0x21_u8, 0x83_u8, 0x0c_u8, 0xee_u8, 0x5e_u8, 0xf2_u8, 0x27_u8,
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0x01_u8, 0xf9_u8
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)
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);
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}
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// Test vectors from
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// https://git.lysator.liu.se/nettle/nettle/blob/nettle_3.1.1_release_20150424/testsuite/pbkdf2-test.c
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#[test]
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#[cfg(feature = "pkcs5_pbkdf2_hmac")]
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fn test_pbkdf2_hmac_sha512() {
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assert_eq!(
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super::pbkdf2_hmac_sha512(
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"password",
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"NaCL".as_bytes(),
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1,
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64
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),
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vec!(
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0x73_u8, 0xde_u8, 0xcf_u8, 0xa5_u8, 0x8a_u8, 0xa2_u8, 0xe8_u8,
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0x4f_u8, 0x94_u8, 0x77_u8, 0x1a_u8, 0x75_u8, 0x73_u8, 0x6b_u8,
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0xb8_u8, 0x8b_u8, 0xd3_u8, 0xc7_u8, 0xb3_u8, 0x82_u8, 0x70_u8,
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0xcf_u8, 0xb5_u8, 0x0c_u8, 0xb3_u8, 0x90_u8, 0xed_u8, 0x78_u8,
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0xb3_u8, 0x05_u8, 0x65_u8, 0x6a_u8, 0xf8_u8, 0x14_u8, 0x8e_u8,
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0x52_u8, 0x45_u8, 0x2b_u8, 0x22_u8, 0x16_u8, 0xb2_u8, 0xb8_u8,
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0x09_u8, 0x8b_u8, 0x76_u8, 0x1f_u8, 0xc6_u8, 0x33_u8, 0x60_u8,
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0x60_u8, 0xa0_u8, 0x9f_u8, 0x76_u8, 0x41_u8, 0x5e_u8, 0x9f_u8,
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0x71_u8, 0xea_u8, 0x47_u8, 0xf9_u8, 0xe9_u8, 0x06_u8, 0x43_u8,
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0x06_u8
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)
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);
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assert_eq!(
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super::pbkdf2_hmac_sha512(
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"pass\0word",
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"sa\0lt".as_bytes(),
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1,
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64
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),
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vec!(
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0x71_u8, 0xa0_u8, 0xec_u8, 0x84_u8, 0x2a_u8, 0xbd_u8, 0x5c_u8,
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0x67_u8, 0x8b_u8, 0xcf_u8, 0xd1_u8, 0x45_u8, 0xf0_u8, 0x9d_u8,
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0x83_u8, 0x52_u8, 0x2f_u8, 0x93_u8, 0x36_u8, 0x15_u8, 0x60_u8,
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0x56_u8, 0x3c_u8, 0x4d_u8, 0x0d_u8, 0x63_u8, 0xb8_u8, 0x83_u8,
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0x29_u8, 0x87_u8, 0x10_u8, 0x90_u8, 0xe7_u8, 0x66_u8, 0x04_u8,
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0xa4_u8, 0x9a_u8, 0xf0_u8, 0x8f_u8, 0xe7_u8, 0xc9_u8, 0xf5_u8,
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0x71_u8, 0x56_u8, 0xc8_u8, 0x79_u8, 0x09_u8, 0x96_u8, 0xb2_u8,
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0x0f_u8, 0x06_u8, 0xbc_u8, 0x53_u8, 0x5e_u8, 0x5a_u8, 0xb5_u8,
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0x44_u8, 0x0d_u8, 0xf7_u8, 0xe8_u8, 0x78_u8, 0x29_u8, 0x6f_u8,
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0xa7_u8
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)
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);
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assert_eq!(
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super::pbkdf2_hmac_sha512(
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"passwordPASSWORDpassword",
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"salt\0\0\0".as_bytes(),
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50,
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64
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),
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vec!(
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0x01_u8, 0x68_u8, 0x71_u8, 0xa4_u8, 0xc4_u8, 0xb7_u8, 0x5f_u8,
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0x96_u8, 0x85_u8, 0x7f_u8, 0xd2_u8, 0xb9_u8, 0xf8_u8, 0xca_u8,
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0x28_u8, 0x02_u8, 0x3b_u8, 0x30_u8, 0xee_u8, 0x2a_u8, 0x39_u8,
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0xf5_u8, 0xad_u8, 0xca_u8, 0xc8_u8, 0xc9_u8, 0x37_u8, 0x5f_u8,
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0x9b_u8, 0xda_u8, 0x1c_u8, 0xcd_u8, 0x1b_u8, 0x6f_u8, 0x0b_u8,
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0x2f_u8, 0xc3_u8, 0xad_u8, 0xda_u8, 0x50_u8, 0x54_u8, 0x12_u8,
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0xe7_u8, 0x9d_u8, 0x89_u8, 0x00_u8, 0x56_u8, 0xc6_u8, 0x2e_u8,
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0x52_u8, 0x4c_u8, 0x7d_u8, 0x51_u8, 0x15_u8, 0x4b_u8, 0x1a_u8,
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0x85_u8, 0x34_u8, 0x57_u8, 0x5b_u8, 0xd0_u8, 0x2d_u8, 0xee_u8,
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0x39_u8
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)
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);
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}
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#[test]
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fn test_evp_bytes_to_key_pbkdf1_compatible() {
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let salt = [
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16_u8, 34_u8, 19_u8, 23_u8, 141_u8, 4_u8, 207_u8, 221_u8
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];
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let data = [
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143_u8, 210_u8, 75_u8, 63_u8, 214_u8, 179_u8, 155_u8,
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241_u8, 242_u8, 31_u8, 154_u8, 56_u8, 198_u8, 145_u8, 192_u8, 64_u8,
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2_u8, 245_u8, 167_u8, 220_u8, 55_u8, 119_u8, 233_u8, 136_u8, 139_u8,
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27_u8, 71_u8, 242_u8, 119_u8, 175_u8, 65_u8, 207_u8
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];
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let expected_key = vec![
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249_u8, 115_u8, 114_u8, 97_u8, 32_u8, 213_u8, 165_u8, 146_u8, 58_u8,
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87_u8, 234_u8, 3_u8, 43_u8, 250_u8, 97_u8, 114_u8, 26_u8, 98_u8,
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245_u8, 246_u8, 238_u8, 177_u8, 229_u8, 161_u8, 183_u8, 224_u8,
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174_u8, 3_u8, 6_u8, 244_u8, 236_u8, 255_u8
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];
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let expected_iv = vec![
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4_u8, 223_u8, 153_u8, 219_u8, 28_u8, 142_u8, 234_u8, 68_u8, 227_u8,
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69_u8, 98_u8, 107_u8, 208_u8, 14_u8, 236_u8, 60_u8, 0_u8, 0_u8,
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0_u8, 0_u8, 0_u8, 0_u8, 0_u8, 0_u8, 0_u8, 0_u8, 0_u8, 0_u8, 0_u8,
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0_u8, 0_u8, 0_u8
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];
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assert_eq!(
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super::evp_bytes_to_key_pbkdf1_compatible(
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symm::Type::AES_256_CBC,
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hash::Type::SHA1,
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&data,
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Some(&salt),
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1
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),
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super::KeyIvPair {
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key: expected_key,
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iv: expected_iv
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}
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);
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}
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}
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