Commit 41abed7d authored Jul 02, 2019 by Pascal van Leeuwen Committed by Herbert Xu Jul 26, 2019

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>

parent 85695b09

drivers/crypto/inside-secure/safexcel.h

+3 −1

Original line number	Diff line number	Diff line
		@@ -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];
		};

		/*

drivers/crypto/inside-secure/safexcel_hash.c

+266 −157

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