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Correct cryp CI build issues.

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This commit is contained in:
Caleb Garrett 2024-03-12 15:05:22 -04:00
parent 1ec9fc58f4
commit 2634a57098
3 changed files with 66 additions and 42 deletions
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76
embassy-stm32/src/cryp/mod.rs
View File

@ -64,7 +64,8 @@ pub trait Cipher<'c> {
where
DmaIn: crate::cryp::DmaIn<T>,
DmaOut: crate::cryp::DmaOut<T>,
{}
{
}
/// Called prior to processing the last data block for cipher-specific operations.
fn pre_final(&self, _p: &pac::cryp::Cryp, _dir: Direction, _padding_len: usize) -> [u32; 4] {
@ -92,11 +93,11 @@ pub trait Cipher<'c> {
_int_data: &mut [u8; AES_BLOCK_SIZE],
_temp1: [u32; 4],
_padding_mask: [u8; 16],
)
where
) where
DmaIn: crate::cryp::DmaIn<T>,
DmaOut: crate::cryp::DmaOut<T>,
{}
{
}
/// Returns the AAD header block as required by the cipher.
fn get_header_block(&self) -> &[u8] {
@ -479,7 +480,11 @@ impl<'c, const KEY_SIZE: usize> Cipher<'c> for AesGcm<'c, KEY_SIZE> {
while p.cr().read().crypen() {}
}
async fn init_phase<T: Instance, DmaIn, DmaOut>(&self, p: &pac::cryp::Cryp, _cryp: &mut Cryp<'_, T, DmaIn, DmaOut>) {
async fn init_phase<T: Instance, DmaIn, DmaOut>(
&self,
p: &pac::cryp::Cryp,
_cryp: &mut Cryp<'_, T, DmaIn, DmaOut>,
) {
p.cr().modify(|w| w.set_gcm_ccmph(0));
p.cr().modify(|w| w.set_crypen(true));
while p.cr().read().crypen() {}
@ -541,12 +546,10 @@ impl<'c, const KEY_SIZE: usize> Cipher<'c> for AesGcm<'c, KEY_SIZE> {
int_data: &mut [u8; AES_BLOCK_SIZE],
_temp1: [u32; 4],
padding_mask: [u8; AES_BLOCK_SIZE],
)
where
) where
DmaIn: crate::cryp::DmaIn<T>,
DmaOut: crate::cryp::DmaOut<T>,
{
if dir == Direction::Encrypt {
// Handle special GCM partial block process.
p.cr().modify(|w| w.set_crypen(false));
@ -622,7 +625,11 @@ impl<'c, const KEY_SIZE: usize> Cipher<'c> for AesGmac<'c, KEY_SIZE> {
while p.cr().read().crypen() {}
}
async fn init_phase<T: Instance, DmaIn, DmaOut>(&self, p: &pac::cryp::Cryp, _cryp: &mut Cryp<'_, T, DmaIn, DmaOut>) {
async fn init_phase<T: Instance, DmaIn, DmaOut>(
&self,
p: &pac::cryp::Cryp,
_cryp: &mut Cryp<'_, T, DmaIn, DmaOut>,
) {
p.cr().modify(|w| w.set_gcm_ccmph(0));
p.cr().modify(|w| w.set_crypen(true));
while p.cr().read().crypen() {}
@ -684,12 +691,10 @@ impl<'c, const KEY_SIZE: usize> Cipher<'c> for AesGmac<'c, KEY_SIZE> {
int_data: &mut [u8; AES_BLOCK_SIZE],
_temp1: [u32; 4],
padding_mask: [u8; AES_BLOCK_SIZE],
)
where
) where
DmaIn: crate::cryp::DmaIn<T>,
DmaOut: crate::cryp::DmaOut<T>,
{
if dir == Direction::Encrypt {
// Handle special GCM partial block process.
p.cr().modify(|w| w.set_crypen(false));
@ -913,8 +918,7 @@ impl<'c, const KEY_SIZE: usize, const TAG_SIZE: usize, const IV_SIZE: usize> Cip
int_data: &mut [u8; AES_BLOCK_SIZE],
temp1: [u32; 4],
padding_mask: [u8; 16],
)
where
) where
DmaIn: crate::cryp::DmaIn<T>,
DmaOut: crate::cryp::DmaOut<T>,
{
@ -1040,7 +1044,11 @@ impl<'d, T: Instance, DmaIn, DmaOut> Cryp<'d, T, DmaIn, DmaOut> {
}
/// Start a new encrypt or decrypt operation for the given cipher.
pub fn start_blocking<'c, C: Cipher<'c> + CipherSized + IVSized>(&self, cipher: &'c C, dir: Direction) -> Context<'c, C> {
pub fn start_blocking<'c, C: Cipher<'c> + CipherSized + IVSized>(
&self,
cipher: &'c C,
dir: Direction,
) -> Context<'c, C> {
let mut ctx: Context<'c, C> = Context {
dir,
last_block_processed: false,
@ -1115,7 +1123,11 @@ impl<'d, T: Instance, DmaIn, DmaOut> Cryp<'d, T, DmaIn, DmaOut> {
}
/// Start a new encrypt or decrypt operation for the given cipher.
pub async fn start<'c, C: Cipher<'c> + CipherSized + IVSized>(&mut self, cipher: &'c C, dir: Direction) -> Context<'c, C>
pub async fn start<'c, C: Cipher<'c> + CipherSized + IVSized>(
&mut self,
cipher: &'c C,
dir: Direction,
) -> Context<'c, C>
where
DmaIn: crate::cryp::DmaIn<T>,
DmaOut: crate::cryp::DmaOut<T>,
@ -1296,17 +1308,12 @@ impl<'d, T: Instance, DmaIn, DmaOut> Cryp<'d, T, DmaIn, DmaOut> {
/// All additional associated data (AAD) must be supplied to this function prior to starting the payload phase with `payload`.
/// The AAD must be supplied in multiples of the block size (128-bits for AES, 64-bits for DES), except when supplying the last block.
/// When supplying the last block of AAD, `last_aad_block` must be `true`.
pub async fn aad<
'c,
const TAG_SIZE: usize,
C: Cipher<'c> + CipherSized + IVSized + CipherAuthenticated<TAG_SIZE>,
>(
pub async fn aad<'c, const TAG_SIZE: usize, C: Cipher<'c> + CipherSized + IVSized + CipherAuthenticated<TAG_SIZE>>(
&mut self,
ctx: &mut Context<'c, C>,
aad: &[u8],
last_aad_block: bool,
)
where
) where
DmaIn: crate::cryp::DmaIn<T>,
DmaOut: crate::cryp::DmaOut<T>,
{
@ -1493,8 +1500,7 @@ impl<'d, T: Instance, DmaIn, DmaOut> Cryp<'d, T, DmaIn, DmaOut> {
input: &[u8],
output: &mut [u8],
last_block: bool,
)
where
) where
DmaIn: crate::cryp::DmaIn<T>,
DmaOut: crate::cryp::DmaOut<T>,
{
@ -1540,7 +1546,11 @@ impl<'d, T: Instance, DmaIn, DmaOut> Cryp<'d, T, DmaIn, DmaOut> {
for block in 0..num_full_blocks {
let index = block * C::BLOCK_SIZE;
// Read block out
let read = Self::read_bytes(&mut self.outdma, C::BLOCK_SIZE, &mut output[index..index + C::BLOCK_SIZE]);
let read = Self::read_bytes(
&mut self.outdma,
C::BLOCK_SIZE,
&mut output[index..index + C::BLOCK_SIZE],
);
// Write block in
let write = Self::write_bytes(&mut self.indma, C::BLOCK_SIZE, &input[index..index + C::BLOCK_SIZE]);
embassy_futures::join::join(read, write).await;
@ -1566,7 +1576,8 @@ impl<'d, T: Instance, DmaIn, DmaOut> Cryp<'d, T, DmaIn, DmaOut> {
let mut mask: [u8; 16] = [0; 16];
mask[..last_block_remainder].fill(0xFF);
ctx.cipher
.post_final(&T::regs(), self, ctx.dir, &mut intermediate_data, temp1, mask).await;
.post_final(&T::regs(), self, ctx.dir, &mut intermediate_data, temp1, mask)
.await;
}
ctx.payload_len += input.len() as u64;
@ -1623,7 +1634,14 @@ impl<'d, T: Instance, DmaIn, DmaOut> Cryp<'d, T, DmaIn, DmaOut> {
#[cfg(any(cryp_v2, cryp_v3))]
// Generates an authentication tag for authenticated ciphers including GCM, CCM, and GMAC.
/// Called after the all data has been encrypted/decrypted by `payload`.
pub async fn finish<'c, const TAG_SIZE: usize, C: Cipher<'c> + CipherSized + IVSized + CipherAuthenticated<TAG_SIZE>>(&mut self, mut ctx: Context<'c, C>) -> [u8; TAG_SIZE]
pub async fn finish<
'c,
const TAG_SIZE: usize,
C: Cipher<'c> + CipherSized + IVSized + CipherAuthenticated<TAG_SIZE>,
>(
&mut self,
mut ctx: Context<'c, C>,
) -> [u8; TAG_SIZE]
where
DmaIn: crate::cryp::DmaIn<T>,
DmaOut: crate::cryp::DmaOut<T>,
@ -1788,6 +1806,7 @@ impl<'d, T: Instance, DmaIn, DmaOut> Cryp<'d, T, DmaIn, DmaOut> {
dma_transfer.await;
}
#[cfg(any(cryp_v2, cryp_v3))]
fn write_words_blocking(&self, block_size: usize, blocks: &[u32]) {
assert_eq!((blocks.len() * 4) % block_size, 0);
let mut byte_counter: usize = 0;
@ -1801,6 +1820,7 @@ impl<'d, T: Instance, DmaIn, DmaOut> Cryp<'d, T, DmaIn, DmaOut> {
}
}
#[cfg(any(cryp_v2, cryp_v3))]
async fn write_words(dma: &mut PeripheralRef<'_, DmaIn>, block_size: usize, blocks: &[u32])
where
DmaIn: crate::cryp::DmaIn<T>,

4
examples/stm32f7/src/bin/cryp.rs
View File

@ -44,7 +44,9 @@ async fn main(_spawner: Spawner) -> ! {
// Decrypt in hardware using AES-GCM 128-bit
let mut gcm_decrypt = hw_cryp.start(&aes_gcm, Direction::Decrypt).await;
hw_cryp.aad(&mut gcm_decrypt, aad, true).await;
hw_cryp.payload(&mut gcm_decrypt, &ciphertext, &mut plaintext, true).await;
hw_cryp
.payload(&mut gcm_decrypt, &ciphertext, &mut plaintext, true)
.await;
let decrypt_tag = hw_cryp.finish(gcm_decrypt).await;
let hw_end_time = Instant::now();

6
tests/stm32/src/bin/cryp.rs
View File

@ -13,7 +13,7 @@ use embassy_executor::Spawner;
use embassy_stm32::{
bind_interrupts,
cryp::{self, *},
peripherals
peripherals,
};
use {defmt_rtt as _, panic_probe as _};
@ -52,7 +52,9 @@ async fn main(_spawner: Spawner) {
let mut gcm_decrypt = hw_cryp.start(&aes_gcm, Direction::Decrypt).await;
hw_cryp.aad(&mut gcm_decrypt, AAD1, false).await;
hw_cryp.aad(&mut gcm_decrypt, AAD2, true).await;
hw_cryp.payload(&mut gcm_decrypt, &ciphertext, &mut plaintext, true).await;
hw_cryp
.payload(&mut gcm_decrypt, &ciphertext, &mut plaintext, true)
.await;
let decrypt_tag = hw_cryp.finish(gcm_decrypt).await;
info!("AES-GCM Ciphertext: {:?}", ciphertext);