Commit 7c390170b49337477985be7a624015160ffeb056
Committed by
Herbert Xu
Herbert Xu
1 parent
b64dc04beb
Exists in
master
and in
20 other branches
crypto: sha1 - export sha1_update for reuse
Export the update function as crypto_sha1_update() to not have the need to reimplement the same algorithm for each SHA-1 implementation. This way the generic SHA-1 implementation can be used as fallback for other implementations that fail to run under certain circumstances, like the need for an FPU context while executing in IRQ context. Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Showing 2 changed files with 8 additions and 4 deletions Side-by-side Diff
crypto/sha1_generic.c
| ... | ... | @@ -36,7 +36,7 @@ |
| 36 | 36 | return 0; |
| 37 | 37 | } |
| 38 | 38 | |
| 39 | -static int sha1_update(struct shash_desc *desc, const u8 *data, | |
| 39 | +int crypto_sha1_update(struct shash_desc *desc, const u8 *data, | |
| 40 | 40 | unsigned int len) |
| 41 | 41 | { |
| 42 | 42 | struct sha1_state *sctx = shash_desc_ctx(desc); |
| ... | ... | @@ -71,6 +71,7 @@ |
| 71 | 71 | |
| 72 | 72 | return 0; |
| 73 | 73 | } |
| 74 | +EXPORT_SYMBOL(crypto_sha1_update); | |
| 74 | 75 | |
| 75 | 76 | |
| 76 | 77 | /* Add padding and return the message digest. */ |
| 77 | 78 | |
| ... | ... | @@ -87,10 +88,10 @@ |
| 87 | 88 | /* Pad out to 56 mod 64 */ |
| 88 | 89 | index = sctx->count & 0x3f; |
| 89 | 90 | padlen = (index < 56) ? (56 - index) : ((64+56) - index); |
| 90 | - sha1_update(desc, padding, padlen); | |
| 91 | + crypto_sha1_update(desc, padding, padlen); | |
| 91 | 92 | |
| 92 | 93 | /* Append length */ |
| 93 | - sha1_update(desc, (const u8 *)&bits, sizeof(bits)); | |
| 94 | + crypto_sha1_update(desc, (const u8 *)&bits, sizeof(bits)); | |
| 94 | 95 | |
| 95 | 96 | /* Store state in digest */ |
| 96 | 97 | for (i = 0; i < 5; i++) |
| ... | ... | @@ -121,7 +122,7 @@ |
| 121 | 122 | static struct shash_alg alg = { |
| 122 | 123 | .digestsize = SHA1_DIGEST_SIZE, |
| 123 | 124 | .init = sha1_init, |
| 124 | - .update = sha1_update, | |
| 125 | + .update = crypto_sha1_update, | |
| 125 | 126 | .final = sha1_final, |
| 126 | 127 | .export = sha1_export, |
| 127 | 128 | .import = sha1_import, |