85383b3112
The hmac algorithms state, that keys larger than the key size should be hashed with the underlying hash algorithms and then those hashes are to be used as keys. This patch implements this. In order to avoid allocating a descriptor during setkey, a shash_desc pointer is added to the context. Another issue for multithreaded callers is the shared temp array. The temp array is static and as such would be shared among multithreaded callers, which obviously would neither work nor produce correct results. The temp array (4k size) is moved to the context and since the size of the context is limited, it can only be defined as pointer otherwise the initialisation of the hash algorithm fails. The allocations and freeing of both the temp and the desc pointer in the context are done by implementing cra_init and cra_exit functions for the hmac algorithms. Also improved indentation in some areas. Signed-off-by: Daniel Kestrel <kestrel1974@t-online.de> |
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