DTHEv2 is a new cryptography engine introduced in TI AM62L SoC. The
features of DTHEv2 were detailed in [1]. Additional hardware details
available in SoC TRM [2]. DTHEv2 includes, among its various
sub-components, a hashing engine which is compliant with various IETF
and NIST standards, including FIPS 180-3 and FIPS PUB 198.
This patch series adds support for the hashing algorithms
SHA224/256/384/512 as well as their HMAC counnterparts for the hashing
engine of Texas Instruments DTHE V2 crypto driver.
The driver is tested using full kernel crypto selftests
(CRYPTO_SELFTESTS_FULL) which all pass successfully [3].
Some of the pre-existing errors caught by Sashiko are fixed in a
separate series [4]. This patch series depends on [4].
Signed-off-by: T Pratham <t-pratham@ti.com>
---
[1]: [PATCH v7 0/2] Add support for Texas Instruments DTHEv2 Crypto
Engine
Link: https://lore.kernel.org/all/20250820092710.3510788-1-t-pratham@ti.com/
[2]: Section 14.6.3 (DMA Control Registers -> DMASS_DTHE)
Link: https://www.ti.com/lit/ug/sprujb4/sprujb4.pdf
[3]: DTHEv2 kernel self-tests logs
Link: https://gist.github.com/Pratham-T/fd15b8e0ee815bcb420a60d451a0cf18
[4]: [PATCH v3 0/12] Fix several issues in DTHEv2 driver
Link: https://lore.kernel.org/all/20260910104202.1537226-1-t-pratham@ti.com/
Changelog:
v8:
- Minor fixes based on Sashiko comments on [4] and changes in [4]
v7:
- Minor fixes based on Sashiko comments on [4]
v6:
- Dropped MD5 and HMAC(MD5)
- Fixed errors pointed by Sashiko
v5:
- Removed CRYPTO_AHASH_ALG_FINAL_NON_ZERO and FINUP_MAX. Implemented
the same mechanism in the driver itself by witholding one block in
the req ctx.
v4:
- Export initial state when phash_available = 0
v3:
- Check for error in registration individualy for hash and aes driver
algos.
- Fixed comment style in dthev2-common.c
v2:
- Completely revamped the driver to use the new CRYPTO_AHASH_BLOCK_ONLY
framework for handling partial blocks and crypto_engine for queueing.
- Added HMAC as well.
Link to previous versions:
v7: https://lore.kernel.org/all/20260827133542.619717-1-t-pratham@ti.com/
v6: https://lore.kernel.org/all/20260827112653.530273-1-t-pratham@ti.com/
v5: https://lore.kernel.org/all/20260807110501.975130-1-t-pratham@ti.com/
v4: https://lore.kernel.org/all/20260526094355.555712-1-t-pratham@ti.com/
v3: https://lore.kernel.org/all/20260226131103.3560884-1-t-pratham@ti.com/
v2: https://lore.kernel.org/all/20260121132408.743777-1-t-pratham@ti.com/
v1: https://lore.kernel.org/all/20250218104943.2304730-1-t-pratham@ti.com/
---
T Pratham (2):
crypto: ti - Add support for SHA224/256/384/512 in DTHEv2 driver
crypto: ti - Add support for HMAC in DTHEv2 driver
drivers/crypto/ti/Kconfig | 3 +
drivers/crypto/ti/Makefile | 2 +-
drivers/crypto/ti/dthev2-aes.c | 10 +-
drivers/crypto/ti/dthev2-common.c | 43 +-
drivers/crypto/ti/dthev2-common.h | 68 +-
drivers/crypto/ti/dthev2-hash.c | 1047 +++++++++++++++++++++++++++++
6 files changed, 1152 insertions(+), 21 deletions(-)
create mode 100644 drivers/crypto/ti/dthev2-hash.c
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2.34.1