Name
crypto_shash_setkey — 
  set key for message digest
 
Synopsis
| int crypto_shash_setkey ( | struct crypto_shash * tfm, | 
|  | const u8 * key, | 
|  | unsigned int keylen ); | 
 
Arguments
- tfm
- 
     cipher handle
     
- key
- 
     buffer holding the key
     
- keylen
- 
     length of the key in bytes
     
Description
   The caller provided key is set for the keyed message digest cipher. The
   cipher handle must point to a keyed message digest cipher in order for this
   function to succeed.
Return
   0 if the setting of the key was successful; < 0 if an error occurred