<linux/cryptohash.h> sounds very generic and important, like it's the header to include if you're doing cryptographic hashing in the kernel. But actually it only includes the library implementation of the SHA-1 compression function (not even the full SHA-1). This should basically never be used anymore; SHA-1 is no longer considered secure, and there are much better ways to do cryptographic hashing in the kernel. Also the function is named just "sha_transform()", which makes it unclear which version of SHA is meant. Therefore, this series cleans things up by moving these SHA-1 declarations into <crypto/sha.h> where they better belong, and changing the names to say SHA-1 rather than just SHA. As future work, we should split sha.h into sha1.h and sha2.h and try to remove the remaining uses of SHA-1. For example, the remaining use in drivers/char/random.c is probably one that can be gotten rid of. This patch series applies to cryptodev/master. Eric Biggers (7): mptcp: use SHA256_BLOCK_SIZE, not SHA_MESSAGE_BYTES crypto: powerpc/sha1 - remove unused temporary workspace crypto: powerpc/sha1 - prefix the "sha1_" functions crypto: s390/sha1 - prefix the "sha1_" functions crypto: lib/sha1 - rename "sha" to "sha1" crypto: lib/sha1 - remove unnecessary includes of linux/cryptohash.h crypto: lib/sha1 - fold linux/cryptohash.h into crypto/sha.h Documentation/security/siphash.rst | 2 +- arch/arm/crypto/sha1_glue.c | 1 - arch/arm/crypto/sha1_neon_glue.c | 1 - arch/arm/crypto/sha256_glue.c | 1 - arch/arm/crypto/sha256_neon_glue.c | 1 - arch/arm/kernel/armksyms.c | 1 - arch/arm64/crypto/sha256-glue.c | 1 - arch/arm64/crypto/sha512-glue.c | 1 - arch/microblaze/kernel/microblaze_ksyms.c | 1 - arch/mips/cavium-octeon/crypto/octeon-md5.c | 1 - arch/powerpc/crypto/md5-glue.c | 1 - arch/powerpc/crypto/sha1-spe-glue.c | 1 - arch/powerpc/crypto/sha1.c | 33 ++++++++++----------- arch/powerpc/crypto/sha256-spe-glue.c | 1 - arch/s390/crypto/sha1_s390.c | 12 ++++---- arch/sparc/crypto/md5_glue.c | 1 - arch/sparc/crypto/sha1_glue.c | 1 - arch/sparc/crypto/sha256_glue.c | 1 - arch/sparc/crypto/sha512_glue.c | 1 - arch/unicore32/kernel/ksyms.c | 1 - arch/x86/crypto/sha1_ssse3_glue.c | 1 - arch/x86/crypto/sha256_ssse3_glue.c | 1 - arch/x86/crypto/sha512_ssse3_glue.c | 1 - crypto/sha1_generic.c | 5 ++-- drivers/char/random.c | 8 ++--- drivers/crypto/atmel-sha.c | 1 - drivers/crypto/chelsio/chcr_algo.c | 1 - drivers/crypto/chelsio/chcr_ipsec.c | 1 - drivers/crypto/omap-sham.c | 1 - fs/f2fs/hash.c | 1 - include/crypto/sha.h | 10 +++++++ include/linux/cryptohash.h | 14 --------- include/linux/filter.h | 4 +-- include/net/tcp.h | 1 - kernel/bpf/core.c | 18 +++++------ lib/crypto/chacha.c | 1 - lib/sha1.c | 24 ++++++++------- net/core/secure_seq.c | 1 - net/ipv6/addrconf.c | 10 +++---- net/ipv6/seg6_hmac.c | 1 - net/mptcp/crypto.c | 4 +-- 41 files changed, 69 insertions(+), 104 deletions(-) delete mode 100644 include/linux/cryptohash.h base-commit: 12b3cf9093542d9f752a4968815ece836159013f -- 2.26.2
