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Commit 26f7120b authored by Antoine Tenart's avatar Antoine Tenart Committed by Herbert Xu
Browse files

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: default avatarAntoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 87eee125

crypto/sha512_generic.c

+10 −0
Original line number Diff line number Diff line
@@ -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,

include/crypto/sha.h

+2 −0
Original line number Diff line number Diff line
@@ -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 {