LXR linux/arch/x86/crypto/aes

   1/*
   2 * Glue Code for the asm optimized version of the AES Cipher Algorithm
   3 *
   4 */
   5
   6#include <linux/module.h>
   7#include <crypto/aes.h>
   8#include <asm/crypto/aes.h>
   9
  10asmlinkage void aes_enc_blk(struct crypto_aes_ctx *ctx, u8 *out, const u8 *in);
  11asmlinkage void aes_dec_blk(struct crypto_aes_ctx *ctx, u8 *out, const u8 *in);
  12
  13void crypto_aes_encrypt_x86(struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src)
  14{
  15        aes_enc_blk(ctx, dst, src);
  16}
  17EXPORT_SYMBOL_GPL(crypto_aes_encrypt_x86);
  18
  19void crypto_aes_decrypt_x86(struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src)
  20{
  21        aes_dec_blk(ctx, dst, src);
  22}
  23EXPORT_SYMBOL_GPL(crypto_aes_decrypt_x86);
  24
  25static void aes_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
  26{
  27        aes_enc_blk(crypto_tfm_ctx(tfm), dst, src);
  28}
  29
  30static void aes_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
  31{
  32        aes_dec_blk(crypto_tfm_ctx(tfm), dst, src);
  33}
  34
  35static struct crypto_alg aes_alg = {
  36        .cra_name               = "aes",
  37        .cra_driver_name        = "aes-asm",
  38        .cra_priority           = 200,
  39        .cra_flags              = CRYPTO_ALG_TYPE_CIPHER,
  40        .cra_blocksize          = AES_BLOCK_SIZE,
  41        .cra_ctxsize            = sizeof(struct crypto_aes_ctx),
  42        .cra_module             = THIS_MODULE,
  43        .cra_u  = {
  44                .cipher = {
  45                        .cia_min_keysize        = AES_MIN_KEY_SIZE,
  46                        .cia_max_keysize        = AES_MAX_KEY_SIZE,
  47                        .cia_setkey             = crypto_aes_set_key,
  48                        .cia_encrypt            = aes_encrypt,
  49                        .cia_decrypt            = aes_decrypt
  50                }
  51        }
  52};
  53
  54static int __init aes_init(void)
  55{
  56        return crypto_register_alg(&aes_alg);
  57}
  58
  59static void __exit aes_fini(void)
  60{
  61        crypto_unregister_alg(&aes_alg);
  62}
  63
  64module_init(aes_init);
  65module_exit(aes_fini);
  66
  67MODULE_DESCRIPTION("Rijndael (AES) Cipher Algorithm, asm optimized");
  68MODULE_LICENSE("GPL");
  69MODULE_ALIAS("aes");
  70MODULE_ALIAS("aes-asm");
  71