[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>

1 files changed, 0 insertions, 101 deletions

diff --git a/crypto/hmac.c b/crypto/hmac.c
index eac77e294740..f403b6946047 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);