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