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We need to consistently enforce that keyed hashes cannot be used without setting the key. To do this we need a reliable way to determine whether a given hash algorithm is keyed or not. AF_ALG currently does this by checking for the presence of a ->setkey() method. However, this is actually slightly broken because the CRC-32 algorithms implement ->setkey() but can also be used without a key. (The CRC-32 "key" is not actually a cryptographic key but rather represents the initial state. If not overridden, then a default initial state is used.) Prepare to fix this by introducing a flag CRYPTO_ALG_OPTIONAL_KEY which indicates that the algorithm has a ->setkey() method, but it is not required to be called. Then set it on all the CRC-32 algorithms. The same also applies to the Adler-32 implementation in Lustre. Also, the cryptd and mcryptd templates have to pass through the flag from their underlying algorithm. Cc: stable@vger.kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> |
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| .. | ||
| aes-spe-core.S | ||
| aes-spe-glue.c | ||
| aes-spe-keys.S | ||
| aes-spe-modes.S | ||
| aes-spe-regs.h | ||
| aes-tab-4k.S | ||
| crc32-vpmsum_core.S | ||
| crc32c-vpmsum_asm.S | ||
| crc32c-vpmsum_glue.c | ||
| crc-vpmsum_test.c | ||
| crct10dif-vpmsum_asm.S | ||
| crct10dif-vpmsum_glue.c | ||
| Makefile | ||
| md5-asm.S | ||
| md5-glue.c | ||
| sha1-powerpc-asm.S | ||
| sha1-spe-asm.S | ||
| sha1-spe-glue.c | ||
| sha1.c | ||
| sha256-spe-asm.S | ||
| sha256-spe-glue.c | ||