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|
use libc::c_int;
#[link(name = "crypto")]
extern {
fn PKCS5_PBKDF2_HMAC_SHA1(pass: *const u8, passlen: c_int,
salt: *const u8, saltlen: c_int,
iter: c_int, keylen: c_int,
out: *mut u8) -> c_int;
}
/// Derives a key from a password and salt using the PBKDF2-HMAC-SHA1 algorithm.
pub fn pbkdf2_hmac_sha1(pass: &str, salt: &[u8], iter: uint, keylen: uint) -> Vec<u8> {
unsafe {
assert!(iter >= 1);
assert!(keylen >= 1);
let mut out = Vec::with_capacity(keylen);
let r = PKCS5_PBKDF2_HMAC_SHA1(
pass.as_ptr(), pass.len() as c_int,
salt.as_ptr(), salt.len() as c_int,
iter as c_int, keylen as c_int,
out.as_mut_ptr());
if r != 1 { fail!(); }
out.set_len(keylen);
out
}
}
#[cfg(test)]
mod tests {
// Test vectors from
// http://tools.ietf.org/html/draft-josefsson-pbkdf2-test-vectors-06
#[test]
fn test_pbkdf2_hmac_sha1() {
assert_eq!(
super::pbkdf2_hmac_sha1(
"password",
"salt".as_bytes(),
1u,
20u
),
vec!(
0x0c_u8, 0x60_u8, 0xc8_u8, 0x0f_u8, 0x96_u8, 0x1f_u8, 0x0e_u8,
0x71_u8, 0xf3_u8, 0xa9_u8, 0xb5_u8, 0x24_u8, 0xaf_u8, 0x60_u8,
0x12_u8, 0x06_u8, 0x2f_u8, 0xe0_u8, 0x37_u8, 0xa6_u8
)
);
assert_eq!(
super::pbkdf2_hmac_sha1(
"password",
"salt".as_bytes(),
2u,
20u
),
vec!(
0xea_u8, 0x6c_u8, 0x01_u8, 0x4d_u8, 0xc7_u8, 0x2d_u8, 0x6f_u8,
0x8c_u8, 0xcd_u8, 0x1e_u8, 0xd9_u8, 0x2a_u8, 0xce_u8, 0x1d_u8,
0x41_u8, 0xf0_u8, 0xd8_u8, 0xde_u8, 0x89_u8, 0x57_u8
)
);
assert_eq!(
super::pbkdf2_hmac_sha1(
"password",
"salt".as_bytes(),
4096u,
20u
),
vec!(
0x4b_u8, 0x00_u8, 0x79_u8, 0x01_u8, 0xb7_u8, 0x65_u8, 0x48_u8,
0x9a_u8, 0xbe_u8, 0xad_u8, 0x49_u8, 0xd9_u8, 0x26_u8, 0xf7_u8,
0x21_u8, 0xd0_u8, 0x65_u8, 0xa4_u8, 0x29_u8, 0xc1_u8
)
);
assert_eq!(
super::pbkdf2_hmac_sha1(
"password",
"salt".as_bytes(),
16777216u,
20u
),
vec!(
0xee_u8, 0xfe_u8, 0x3d_u8, 0x61_u8, 0xcd_u8, 0x4d_u8, 0xa4_u8,
0xe4_u8, 0xe9_u8, 0x94_u8, 0x5b_u8, 0x3d_u8, 0x6b_u8, 0xa2_u8,
0x15_u8, 0x8c_u8, 0x26_u8, 0x34_u8, 0xe9_u8, 0x84_u8
)
);
assert_eq!(
super::pbkdf2_hmac_sha1(
"passwordPASSWORDpassword",
"saltSALTsaltSALTsaltSALTsaltSALTsalt".as_bytes(),
4096u,
25u
),
vec!(
0x3d_u8, 0x2e_u8, 0xec_u8, 0x4f_u8, 0xe4_u8, 0x1c_u8, 0x84_u8,
0x9b_u8, 0x80_u8, 0xc8_u8, 0xd8_u8, 0x36_u8, 0x62_u8, 0xc0_u8,
0xe4_u8, 0x4a_u8, 0x8b_u8, 0x29_u8, 0x1a_u8, 0x96_u8, 0x4c_u8,
0xf2_u8, 0xf0_u8, 0x70_u8, 0x38_u8
)
);
assert_eq!(
super::pbkdf2_hmac_sha1(
"pass\x00word",
"sa\x00lt".as_bytes(),
4096u,
16u
),
vec!(
0x56_u8, 0xfa_u8, 0x6a_u8, 0xa7_u8, 0x55_u8, 0x48_u8, 0x09_u8,
0x9d_u8, 0xcc_u8, 0x37_u8, 0xd7_u8, 0xf0_u8, 0x34_u8, 0x25_u8,
0xe0_u8, 0xc3_u8
)
);
}
}
|
