diff options
| author | Pascal van Leeuwen <pvanleeuwen@insidesecure.com> | 2019-07-02 16:39:59 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2019-07-26 14:52:01 +1000 |
| commit | 41abed7d72c93fd31b0c1d51f42606216f1ea882 (patch) | |
| tree | de3e58ae08893224f04b90b7245107d6382c1e6b /drivers/crypto/inside-secure/safexcel.h | |
| parent | 85695b093d559bcd2393a65373355390ac62d67b (diff) | |
crypto: inside-secure - add support for arbitrary size hash/HMAC updates
This patch fixes an issue with hash and HMAC operations that perform
"large" intermediate updates (i.e. combined size > 2 hash blocks) by
actually making use of the hardware's hash continue capabilities.
The original implementation would cache these updates in a buffer that
was 2 hash blocks in size and fail if all update calls combined would
overflow that buffer. Which caused the cryptomgr extra tests to fail.
Signed-off-by: Pascal van Leeuwen <pvanleeuwen@verimatrix.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/inside-secure/safexcel.h')
| -rw-r--r-- | drivers/crypto/inside-secure/safexcel.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/crypto/inside-secure/safexcel.h b/drivers/crypto/inside-secure/safexcel.h index 91d221b421fd..b73b17dcb8b1 100644 --- a/drivers/crypto/inside-secure/safexcel.h +++ b/drivers/crypto/inside-secure/safexcel.h @@ -637,6 +637,8 @@ struct safexcel_context { bool exit_inv; }; +#define HASH_CACHE_SIZE SHA512_BLOCK_SIZE + struct safexcel_ahash_export_state { u64 len[2]; u64 processed[2]; @@ -644,7 +646,7 @@ struct safexcel_ahash_export_state { u32 digest; u32 state[SHA512_DIGEST_SIZE / sizeof(u32)]; - u8 cache[SHA512_BLOCK_SIZE << 1]; + u8 cache[HASH_CACHE_SIZE]; }; /* |