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_CRYPTO("aes"); 70MODULE_ALIAS_CRYPTO("aes-asm"); 71