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Add XTS-AES mode

This commit is contained in:
Corey Ford 2014-11-05 23:00:39 -08:00
parent c56d8f071a
commit 287d402042
2 changed files with 18 additions and 0 deletions
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2
openssl-sys/src/lib.rs
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@ -316,10 +316,12 @@ extern "C" {
pub fn EVP_aes_128_cbc() -> *const EVP_CIPHER;
pub fn EVP_aes_128_ecb() -> *const EVP_CIPHER;
pub fn EVP_aes_128_xts() -> *const EVP_CIPHER;
// fn EVP_aes_128_ctr() -> EVP_CIPHER;
// fn EVP_aes_128_gcm() -> EVP_CIPHER;
pub fn EVP_aes_256_cbc() -> *const EVP_CIPHER;
pub fn EVP_aes_256_ecb() -> *const EVP_CIPHER;
pub fn EVP_aes_256_xts() -> *const EVP_CIPHER;
// fn EVP_aes_256_ctr() -> EVP_CIPHER;
// fn EVP_aes_256_gcm() -> EVP_CIPHER;
pub fn EVP_rc4() -> *const EVP_CIPHER;

16
src/crypto/symm.rs
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@ -11,11 +11,13 @@ pub enum Mode {
pub enum Type {
AES_128_ECB,
AES_128_CBC,
AES_128_XTS,
// AES_128_CTR,
//AES_128_GCM,
AES_256_ECB,
AES_256_CBC,
AES_256_XTS,
// AES_256_CTR,
//AES_256_GCM,
@ -27,11 +29,13 @@ fn evpc(t: Type) -> (*const ffi::EVP_CIPHER, uint, uint) {
match t {
AES_128_ECB => (ffi::EVP_aes_128_ecb(), 16u, 16u),
AES_128_CBC => (ffi::EVP_aes_128_cbc(), 16u, 16u),
AES_128_XTS => (ffi::EVP_aes_128_xts(), 32u, 16u),
// AES_128_CTR => (EVP_aes_128_ctr(), 16u, 0u),
//AES_128_GCM => (EVP_aes_128_gcm(), 16u, 16u),
AES_256_ECB => (ffi::EVP_aes_256_ecb(), 32u, 16u),
AES_256_CBC => (ffi::EVP_aes_256_cbc(), 32u, 16u),
AES_256_XTS => (ffi::EVP_aes_256_xts(), 64u, 16u),
// AES_256_CTR => (EVP_aes_256_ctr(), 32u, 0u),
//AES_256_GCM => (EVP_aes_256_gcm(), 32u, 16u),
@ -263,6 +267,18 @@ mod tests {
cipher_test(super::RC4_128, pt, ct, key, iv);
}
#[test]
fn test_aes256_xts() {
// Test case 174 from
// http://csrc.nist.gov/groups/STM/cavp/documents/aes/XTSTestVectors.zip
let pt = "77f4ef63d734ebd028508da66c22cdebdd52ecd6ee2ab0a50bc8ad0cfd692ca5fcd4e6dedc45df7f6503f462611dc542";
let ct = "ce7d905a7776ac72f240d22aafed5e4eb7566cdc7211220e970da634ce015f131a5ecb8d400bc9e84f0b81d8725dbbc7";
let key = "b6bfef891f83b5ff073f2231267be51eb084b791fa19a154399c0684c8b2dfcb37de77d28bbda3b4180026ad640b74243b3133e7b9fae629403f6733423dae28";
let iv = "db200efb7eaaa737dbdf40babb68953f";
cipher_test(super::AES_256_XTS, pt, ct, key, iv);
}
/*#[test]
fn test_aes128_ctr() {