From 1052671ca118b79fa3f5de281bba850aaf20bbf5 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Sun, 4 May 2025 21:33:21 +0800 Subject: crypto: ahash - Add core export and import Add crypto_ahash_export_core and crypto_ahash_import_core. For now they only differ from the normal export/import functions when going through shash. Signed-off-by: Herbert Xu --- include/crypto/hash.h | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'include/crypto') diff --git a/include/crypto/hash.h b/include/crypto/hash.h index e0321b5ec363..1760662ad70a 100644 --- a/include/crypto/hash.h +++ b/include/crypto/hash.h @@ -506,6 +506,18 @@ int crypto_ahash_digest(struct ahash_request *req); */ int crypto_ahash_export(struct ahash_request *req, void *out); +/** + * crypto_ahash_export_core() - extract core state for message digest + * @req: reference to the ahash_request handle whose state is exported + * @out: output buffer of sufficient size that can hold the hash state + * + * Export the hash state without the partial block buffer. + * + * Context: Softirq or process context. + * Return: 0 if the export creation was successful; < 0 if an error occurred + */ +int crypto_ahash_export_core(struct ahash_request *req, void *out); + /** * crypto_ahash_import() - import message digest state * @req: reference to ahash_request handle the state is imported into @@ -519,6 +531,18 @@ int crypto_ahash_export(struct ahash_request *req, void *out); */ int crypto_ahash_import(struct ahash_request *req, const void *in); +/** + * crypto_ahash_import_core() - import core state + * @req: reference to ahash_request handle the state is imported into + * @in: buffer holding the state + * + * Import the hash state without the partial block buffer. + * + * Context: Softirq or process context. + * Return: 0 if the import was successful; < 0 if an error occurred + */ +int crypto_ahash_import_core(struct ahash_request *req, const void *in); + /** * crypto_ahash_init() - (re)initialize message digest handle * @req: ahash_request handle that already is initialized with all necessary -- cgit v1.2.3