STRUCT AKCIPHER_ALG(9)                Programming Interface                STRUCT AKCIPHER_ALG(9)



NAME
       struct_akcipher_alg - generic public key algorithm

SYNOPSIS
       struct akcipher_alg {
         int (* sign) (struct akcipher_request *req);
         int (* verify) (struct akcipher_request *req);
         int (* encrypt) (struct akcipher_request *req);
         int (* decrypt) (struct akcipher_request *req);
         int (* set_pub_key) (struct crypto_akcipher *tfm, const void *key,unsigned int keylen);
         int (* set_priv_key) (struct crypto_akcipher *tfm, const void *key,unsigned int keylen);
         int (* max_size) (struct crypto_akcipher *tfm);
         int (* init) (struct crypto_akcipher *tfm);
         void (* exit) (struct crypto_akcipher *tfm);
         unsigned int reqsize;
         struct crypto_alg base;
       };

MEMBERS
       sign
           Function performs a sign operation as defined by public key algorithm. In case of
           error, where the dst_len was insufficient, the req->dst_len will be updated to the
           size required for the operation

       verify
           Function performs a sign operation as defined by public key algorithm. In case of
           error, where the dst_len was insufficient, the req->dst_len will be updated to the
           size required for the operation

       encrypt
           Function performs an encrypt operation as defined by public key algorithm. In case of
           error, where the dst_len was insufficient, the req->dst_len will be updated to the
           size required for the operation

       decrypt
           Function performs a decrypt operation as defined by public key algorithm. In case of
           error, where the dst_len was insufficient, the req->dst_len will be updated to the
           size required for the operation

       set_pub_key
           Function invokes the algorithm specific set public key function, which knows how to
           decode and interpret the BER encoded public key

       set_priv_key
           Function invokes the algorithm specific set private key function, which knows how to
           decode and interpret the BER encoded private key

       max_size
           Function returns dest buffer size required for a given key.

       init
           Initialize the cryptographic transformation object. This function is used to
           initialize the cryptographic transformation object. This function is called only once
           at the instantiation time, right after the transformation context was allocated. In
           case the cryptographic hardware has some special requirements which need to be handled
           by software, this function shall check for the precise requirement of the
           transformation and put any software fallbacks in place.

       exit
           Deinitialize the cryptographic transformation object. This is a counterpart to init,
           used to remove various changes set in init.

       reqsize
           Request context size required by algorithm implementation

       base
           Common crypto API algorithm data structure

AUTHORS
       Stephan Mueller <smueller AT chronox.de>
           Author.

       Marek Vasut <marek AT denx.de>
           Author.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                    STRUCT AKCIPHER_ALG(9)