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authorHerbert Xu <herbert@gondor.apana.org.au>2006-08-20 15:25:22 +1000
committerHerbert Xu <herbert@gondor.apana.org.au>2006-09-21 11:46:20 +1000
commit8425165dfed27945e8509c141cea245d1739e372 (patch)
treec2a05344993a52bb317bb320a97d0566f3d277bf /crypto/hmac.c
parent878b9014666217555d16073764f30e825cf18d2f (diff)
downloadlinux-linaro-android-8425165dfed27945e8509c141cea245d1739e372.tar.gz
[CRYPTO] digest: Remove old HMAC implementation
This patch removes the old HMAC implementation now that nobody uses it anymore. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'crypto/hmac.c')
-rw-r--r--crypto/hmac.c101
1 files changed, 0 insertions, 101 deletions
diff --git a/crypto/hmac.c b/crypto/hmac.c
index eac77e29474..f403b694604 100644
--- a/crypto/hmac.c
+++ b/crypto/hmac.c
@@ -29,107 +29,6 @@ struct hmac_ctx {
struct crypto_hash *child;
};
-static void hash_key(struct crypto_tfm *tfm, u8 *key, unsigned int keylen)
-{
- struct scatterlist tmp;
-
- sg_set_buf(&tmp, key, keylen);
- crypto_digest_digest(tfm, &tmp, 1, key);
-}
-
-int crypto_alloc_hmac_block(struct crypto_tfm *tfm)
-{
- int ret = 0;
-
- BUG_ON(!crypto_tfm_alg_blocksize(tfm));
-
- tfm->crt_hash.hmac_block = kmalloc(crypto_tfm_alg_blocksize(tfm),
- GFP_KERNEL);
- if (tfm->crt_hash.hmac_block == NULL)
- ret = -ENOMEM;
-
- return ret;
-
-}
-
-void crypto_free_hmac_block(struct crypto_tfm *tfm)
-{
- kfree(tfm->crt_hash.hmac_block);
-}
-
-void crypto_hmac_init(struct crypto_tfm *tfm, u8 *key, unsigned int *keylen)
-{
- unsigned int i;
- struct scatterlist tmp;
- char *ipad = tfm->crt_hash.hmac_block;
-
- if (*keylen > crypto_tfm_alg_blocksize(tfm)) {
- hash_key(tfm, key, *keylen);
- *keylen = crypto_tfm_alg_digestsize(tfm);
- }
-
- memset(ipad, 0, crypto_tfm_alg_blocksize(tfm));
- memcpy(ipad, key, *keylen);
-
- for (i = 0; i < crypto_tfm_alg_blocksize(tfm); i++)
- ipad[i] ^= 0x36;
-
- sg_set_buf(&tmp, ipad, crypto_tfm_alg_blocksize(tfm));
-
- crypto_digest_init(tfm);
- crypto_digest_update(tfm, &tmp, 1);
-}
-
-void crypto_hmac_update(struct crypto_tfm *tfm,
- struct scatterlist *sg, unsigned int nsg)
-{
- crypto_digest_update(tfm, sg, nsg);
-}
-
-void crypto_hmac_final(struct crypto_tfm *tfm, u8 *key,
- unsigned int *keylen, u8 *out)
-{
- unsigned int i;
- struct scatterlist tmp;
- char *opad = tfm->crt_hash.hmac_block;
-
- if (*keylen > crypto_tfm_alg_blocksize(tfm)) {
- hash_key(tfm, key, *keylen);
- *keylen = crypto_tfm_alg_digestsize(tfm);
- }
-
- crypto_digest_final(tfm, out);
-
- memset(opad, 0, crypto_tfm_alg_blocksize(tfm));
- memcpy(opad, key, *keylen);
-
- for (i = 0; i < crypto_tfm_alg_blocksize(tfm); i++)
- opad[i] ^= 0x5c;
-
- sg_set_buf(&tmp, opad, crypto_tfm_alg_blocksize(tfm));
-
- crypto_digest_init(tfm);
- crypto_digest_update(tfm, &tmp, 1);
-
- sg_set_buf(&tmp, out, crypto_tfm_alg_digestsize(tfm));
-
- crypto_digest_update(tfm, &tmp, 1);
- crypto_digest_final(tfm, out);
-}
-
-void crypto_hmac(struct crypto_tfm *tfm, u8 *key, unsigned int *keylen,
- struct scatterlist *sg, unsigned int nsg, u8 *out)
-{
- crypto_hmac_init(tfm, key, keylen);
- crypto_hmac_update(tfm, sg, nsg);
- crypto_hmac_final(tfm, key, keylen, out);
-}
-
-EXPORT_SYMBOL_GPL(crypto_hmac_init);
-EXPORT_SYMBOL_GPL(crypto_hmac_update);
-EXPORT_SYMBOL_GPL(crypto_hmac_final);
-EXPORT_SYMBOL_GPL(crypto_hmac);
-
static inline void *align_ptr(void *p, unsigned int align)
{
return (void *)ALIGN((unsigned long)p, align);