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| author | Antoine Tenart <antoine.tenart@bootlin.com> | 2018-05-29 15:13:49 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2018-06-22 18:03:05 +0300 |
| commit | 26f7120b86a964a886ececb9eb8e6dd50276dbb2 (patch) | |
| tree | 57a6b6549cbe70bd3bebba95234da6c12fef1d9c | |
| parent | 87eee125e7490cf17e2de845a8b81b5bf63929c7 (diff) | |
| download | linux-26f7120b86a964a886ececb9eb8e6dd50276dbb2.tar.xz | |
crypto: sha512_generic - add a sha384 0-length pre-computed hash
This patch adds the sha384 pre-computed 0-length hash so that device
drivers can use it when an hardware engine does not support computing a
hash from a 0 length input.
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | crypto/sha512_generic.c | 10 | ||||
| -rw-r--r-- | include/crypto/sha.h | 2 |
2 files changed, 12 insertions, 0 deletions
diff --git a/crypto/sha512_generic.c b/crypto/sha512_generic.c index 439723d9273e..0b805d03b5e5 100644 --- a/crypto/sha512_generic.c +++ b/crypto/sha512_generic.c @@ -23,6 +23,16 @@ #include <asm/byteorder.h> #include <asm/unaligned.h> +const u8 sha384_zero_message_hash[SHA384_DIGEST_SIZE] = { + 0x38, 0xb0, 0x60, 0xa7, 0x51, 0xac, 0x96, 0x38, + 0x4c, 0xd9, 0x32, 0x7e, 0xb1, 0xb1, 0xe3, 0x6a, + 0x21, 0xfd, 0xb7, 0x11, 0x14, 0xbe, 0x07, 0x43, + 0x4c, 0x0c, 0xc7, 0xbf, 0x63, 0xf6, 0xe1, 0xda, + 0x27, 0x4e, 0xde, 0xbf, 0xe7, 0x6f, 0x65, 0xfb, + 0xd5, 0x1a, 0xd2, 0xf1, 0x48, 0x98, 0xb9, 0x5b +}; +EXPORT_SYMBOL_GPL(sha384_zero_message_hash); + const u8 sha512_zero_message_hash[SHA512_DIGEST_SIZE] = { 0xcf, 0x83, 0xe1, 0x35, 0x7e, 0xef, 0xb8, 0xbd, 0xf1, 0x54, 0x28, 0x50, 0xd6, 0x6d, 0x80, 0x07, diff --git a/include/crypto/sha.h b/include/crypto/sha.h index 799f071b93df..8a46202b1857 100644 --- a/include/crypto/sha.h +++ b/include/crypto/sha.h @@ -71,6 +71,8 @@ extern const u8 sha224_zero_message_hash[SHA224_DIGEST_SIZE]; extern const u8 sha256_zero_message_hash[SHA256_DIGEST_SIZE]; +extern const u8 sha384_zero_message_hash[SHA384_DIGEST_SIZE]; + extern const u8 sha512_zero_message_hash[SHA512_DIGEST_SIZE]; struct sha1_state { |