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| author | Eric Biggers <ebiggers@google.com> | 2023-10-09 00:53:27 -0700 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2023-10-20 13:39:25 +0800 |
| commit | 1efcbf0eff1022f6a44f8c04691caa5f90606bac (patch) | |
| tree | 73735cdb2d6feeb6ecbc75530a5fa5bac0b1756a | |
| parent | 2e02c25ac93463d52bd7c1010cd647c944f179e1 (diff) | |
crypto: arm64/sha2-ce - implement ->digest for sha256
Implement a ->digest function for sha256-ce. This improves the
performance of crypto_shash_digest() with this algorithm by reducing the
number of indirect calls that are made. This only adds ~112 bytes of
code, mostly for the inlined init, as the finup function is tail-called.
For now, don't bother with this for sha224, since sha224 is rarely used.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | arch/arm64/crypto/sha2-ce-glue.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm64/crypto/sha2-ce-glue.c b/arch/arm64/crypto/sha2-ce-glue.c index c57a6119fefc..f2f118b0e1c1 100644 --- a/arch/arm64/crypto/sha2-ce-glue.c +++ b/arch/arm64/crypto/sha2-ce-glue.c @@ -116,6 +116,13 @@ static int sha256_ce_final(struct shash_desc *desc, u8 *out) return sha256_base_finish(desc, out); } +static int sha256_ce_digest(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out) +{ + sha256_base_init(desc); + return sha256_ce_finup(desc, data, len, out); +} + static int sha256_ce_export(struct shash_desc *desc, void *out) { struct sha256_ce_state *sctx = shash_desc_ctx(desc); @@ -155,6 +162,7 @@ static struct shash_alg algs[] = { { .update = sha256_ce_update, .final = sha256_ce_final, .finup = sha256_ce_finup, + .digest = sha256_ce_digest, .export = sha256_ce_export, .import = sha256_ce_import, .descsize = sizeof(struct sha256_ce_state), |