diff options
| author | Ard Biesheuvel <ardb@kernel.org> | 2024-04-29 16:27:58 -0400 |
|---|---|---|
| committer | Jarkko Sakkinen <jarkko@kernel.org> | 2024-05-09 22:30:51 +0300 |
| commit | f135440447af5156de91272ee52ccedcf0796e94 (patch) | |
| tree | 019ed7cf4620c93b2963cdbe5b982ac3039e6576 /lib/random32.c | |
| parent | 40813f1879e7b7d33bf70bcd67fb443e8e52247b (diff) | |
crypto: lib - implement library version of AES in CFB mode
Implement AES in CFB mode using the existing, mostly constant-time
generic AES library implementation. This will be used by the TPM code
to encrypt communications with TPM hardware, which is often a discrete
component connected using sniffable wires or traces.
While a CFB template does exist, using a skcipher is a major pain for
non-performance critical synchronous crypto where the algorithm is known
at compile time and the data is in contiguous buffers with valid kernel
virtual addresses.
Tested-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Reviewed-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Link: https://lore.kernel.org/all/20230216201410.15010-1-James.Bottomley@HansenPartnership.com/
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Tested-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Diffstat (limited to 'lib/random32.c')
0 files changed, 0 insertions, 0 deletions