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Make it easier to adjust Openssl Te

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This commit is contained in:
Guillaume DIDIER 2020-09-29 11:10:12 +02:00
parent f17ca91e82
commit 17a4f4585c
2 changed files with 15 additions and 5 deletions
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2
aes-t-tables/src/lib.rs
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@ -378,7 +378,7 @@ pub unsafe fn attack_t_tables_poc(
let te0 = unsafe { base.offset(parameters.te[0]) }; let te0 = unsafe { base.offset(parameters.te[0]) };
if unsafe { (te0 as *const u64).read() } != 0xf87c7c84c66363a5 { if unsafe { (te0 as *const u64).read() } != 0xf87c7c84c66363a5 {
panic!("Hmm This does not look like a T-table, check your address and the openssl used") panic!("Hmm This does not look like a T-table, check your address and the openssl used\nUse `nm libcrypto.so.1.0.0 | \"grep Te[0-4]\"`")
} }
let key_struct = aes::AesKey::new_encrypt(&parameters.key).unwrap(); let key_struct = aes::AesKey::new_encrypt(&parameters.key).unwrap();

18
aes-t-tables/src/main.rs
View File

@ -447,16 +447,26 @@ const KEY2: [u8; 32] = [
0x4f, 0x6e, 0x9c, 0x2a, 0x15, 0x5f, 0x5f, 0x0b, 0x25, 0x77, 0x6b, 0x70, 0xcd, 0xe2, 0xf7, 0x80, 0x4f, 0x6e, 0x9c, 0x2a, 0x15, 0x5f, 0x5f, 0x0b, 0x25, 0x77, 0x6b, 0x70, 0xcd, 0xe2, 0xf7, 0x80,
]; ];
// On cyber cobaye
// 00000000001cc480 r Te0
// 00000000001cc080 r Te1
// 00000000001cbc80 r Te2
// 00000000001cb880 r Te3
const TE_CYBER_COBAYE : [isize;4] = [0x1cc480, 0x1cc080, 0x1ccc80, 0x1cc880];
const TE_CITRON_VERT : [isize; 4] = [0x1b5d40, 0x1b5940, 0x1b5540, 0x1b5140];
fn main() { fn main() {
let open_sslpath = Path::new(env!("OPENSSL_DIR")).join("lib/libcrypto.so"); let open_sslpath = Path::new(env!("OPENSSL_DIR")).join("lib/libcrypto.so");
let mut side_channel = NaiveFlushAndReload::from_threshold(220); let mut side_channel = NaiveFlushAndReload::from_threshold(220);
let te = TE_CITRON_VERT;
unsafe { unsafe {
attack_t_tables_poc( attack_t_tables_poc(
&mut side_channel, &mut side_channel,
AESTTableParams { AESTTableParams {
num_encryptions: 1 << 12, num_encryptions: 1 << 12,
key: [0; 32], key: [0; 32],
te: [0x1b5d40, 0x1b5940, 0x1b5540, 0x1b5140], // adjust me (should be in decreasing order) te: te, // adjust me (should be in decreasing order)
openssl_path: &open_sslpath, openssl_path: &open_sslpath,
}, },
) )
@ -467,7 +477,7 @@ fn main() {
AESTTableParams { AESTTableParams {
num_encryptions: 1 << 12, num_encryptions: 1 << 12,
key: KEY2, key: KEY2,
te: [0x1b5d40, 0x1b5940, 0x1b5540, 0x1b5140], // adjust me (should be in decreasing order) te: te,
openssl_path: &open_sslpath, openssl_path: &open_sslpath,
}, },
) )
@ -480,7 +490,7 @@ fn main() {
AESTTableParams { AESTTableParams {
num_encryptions: 1 << 12, num_encryptions: 1 << 12,
key: [0; 32], key: [0; 32],
te: [0x1b5d40, 0x1b5940, 0x1b5540, 0x1b5140], // adjust me (should be in decreasing order) te: te, // adjust me (should be in decreasing order)
openssl_path: &open_sslpath, openssl_path: &open_sslpath,
}, },
) )
@ -494,7 +504,7 @@ fn main() {
AESTTableParams { AESTTableParams {
num_encryptions: 1 << 12, num_encryptions: 1 << 12,
key: KEY2, key: KEY2,
te: [0x1b5d40, 0x1b5940, 0x1b5540, 0x1b5140], // adjust me (should be in decreasing order) te: te, // adjust me (should be in decreasing order)
openssl_path: &open_sslpath, openssl_path: &open_sslpath,
}, },
) )