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/aes.h>
9
10 asmlinkage void aes_enc_blk(struct crypto_aes_ctx *ctx, u8 *out, const u8 *in);
11 asmlinkage void aes_dec_blk(struct crypto_aes_ctx *ctx, u8 *out, const u8 *in);
12
crypto_aes_encrypt_x86(struct crypto_aes_ctx * ctx,u8 * dst,const u8 * src)13 void crypto_aes_encrypt_x86(struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src)
14 {
15 aes_enc_blk(ctx, dst, src);
16 }
17 EXPORT_SYMBOL_GPL(crypto_aes_encrypt_x86);
18
crypto_aes_decrypt_x86(struct crypto_aes_ctx * ctx,u8 * dst,const u8 * src)19 void crypto_aes_decrypt_x86(struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src)
20 {
21 aes_dec_blk(ctx, dst, src);
22 }
23 EXPORT_SYMBOL_GPL(crypto_aes_decrypt_x86);
24
aes_encrypt(struct crypto_tfm * tfm,u8 * dst,const u8 * src)25 static 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
aes_decrypt(struct crypto_tfm * tfm,u8 * dst,const u8 * src)30 static 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
35 static 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_list = LIST_HEAD_INIT(aes_alg.cra_list),
44 .cra_u = {
45 .cipher = {
46 .cia_min_keysize = AES_MIN_KEY_SIZE,
47 .cia_max_keysize = AES_MAX_KEY_SIZE,
48 .cia_setkey = crypto_aes_set_key,
49 .cia_encrypt = aes_encrypt,
50 .cia_decrypt = aes_decrypt
51 }
52 }
53 };
54
aes_init(void)55 static int __init aes_init(void)
56 {
57 return crypto_register_alg(&aes_alg);
58 }
59
aes_fini(void)60 static void __exit aes_fini(void)
61 {
62 crypto_unregister_alg(&aes_alg);
63 }
64
65 module_init(aes_init);
66 module_exit(aes_fini);
67
68 MODULE_DESCRIPTION("Rijndael (AES) Cipher Algorithm, asm optimized");
69 MODULE_LICENSE("GPL");
70 MODULE_ALIAS("aes");
71 MODULE_ALIAS("aes-asm");
72