Folks: I am attempting to implement an ahash instance for a hardware crypto device.
I see that there is a sha1 generic in the soruces a crypto/sha1_generic.c which uses the shash interface. I was hoping to use that, but there is some stuff in the headers that is confusing. In include/crypto/hash.h, there is a structure crypto_ahash which has pointers to the init, update, final, etc algorithms. These same algorithms are also referred to in the ahash_alg structure. In the case of shash, the crypto_shash structure does not have pointers to the algorithms. Why is the crypto_ahash structure so different? There is a function shash_desc_ctx, but there is no function ahash_des_ctx. In the crys_sha1_init() function of sha1_generic, you call shash_desc_ctx. If I want to use the ahash instead of shash for sha1, then do I use shash_desc_ctx, or do I have to come up with my own ahash_desc_ctx? Thanks Mark Allyn -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
