diff options
Diffstat (limited to 'arch/x86/crypto/sm4_aesni_avx_glue.c')
| -rw-r--r-- | arch/x86/crypto/sm4_aesni_avx_glue.c | 130 |
1 files changed, 0 insertions, 130 deletions
diff --git a/arch/x86/crypto/sm4_aesni_avx_glue.c b/arch/x86/crypto/sm4_aesni_avx_glue.c index 7800f77d68ad..85b4ca78b47b 100644 --- a/arch/x86/crypto/sm4_aesni_avx_glue.c +++ b/arch/x86/crypto/sm4_aesni_avx_glue.c @@ -27,8 +27,6 @@ asmlinkage void sm4_aesni_avx_ctr_enc_blk8(const u32 *rk, u8 *dst, const u8 *src, u8 *iv); asmlinkage void sm4_aesni_avx_cbc_dec_blk8(const u32 *rk, u8 *dst, const u8 *src, u8 *iv); -asmlinkage void sm4_aesni_avx_cfb_dec_blk8(const u32 *rk, u8 *dst, - const u8 *src, u8 *iv); static int sm4_skcipher_setkey(struct crypto_skcipher *tfm, const u8 *key, unsigned int key_len) @@ -188,116 +186,6 @@ static int cbc_decrypt(struct skcipher_request *req) sm4_aesni_avx_cbc_dec_blk8); } -int sm4_cfb_encrypt(struct skcipher_request *req) -{ - struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); - struct sm4_ctx *ctx = crypto_skcipher_ctx(tfm); - struct skcipher_walk walk; - unsigned int nbytes; - int err; - - err = skcipher_walk_virt(&walk, req, false); - - while ((nbytes = walk.nbytes) > 0) { - u8 keystream[SM4_BLOCK_SIZE]; - const u8 *iv = walk.iv; - const u8 *src = walk.src.virt.addr; - u8 *dst = walk.dst.virt.addr; - - while (nbytes >= SM4_BLOCK_SIZE) { - sm4_crypt_block(ctx->rkey_enc, keystream, iv); - crypto_xor_cpy(dst, src, keystream, SM4_BLOCK_SIZE); - iv = dst; - src += SM4_BLOCK_SIZE; - dst += SM4_BLOCK_SIZE; - nbytes -= SM4_BLOCK_SIZE; - } - if (iv != walk.iv) - memcpy(walk.iv, iv, SM4_BLOCK_SIZE); - - /* tail */ - if (walk.nbytes == walk.total && nbytes > 0) { - sm4_crypt_block(ctx->rkey_enc, keystream, walk.iv); - crypto_xor_cpy(dst, src, keystream, nbytes); - nbytes = 0; - } - - err = skcipher_walk_done(&walk, nbytes); - } - - return err; -} -EXPORT_SYMBOL_GPL(sm4_cfb_encrypt); - -int sm4_avx_cfb_decrypt(struct skcipher_request *req, - unsigned int bsize, sm4_crypt_func func) -{ - struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); - struct sm4_ctx *ctx = crypto_skcipher_ctx(tfm); - struct skcipher_walk walk; - unsigned int nbytes; - int err; - - err = skcipher_walk_virt(&walk, req, false); - - while ((nbytes = walk.nbytes) > 0) { - const u8 *src = walk.src.virt.addr; - u8 *dst = walk.dst.virt.addr; - - kernel_fpu_begin(); - - while (nbytes >= bsize) { - func(ctx->rkey_enc, dst, src, walk.iv); - dst += bsize; - src += bsize; - nbytes -= bsize; - } - - while (nbytes >= SM4_BLOCK_SIZE) { - u8 keystream[SM4_BLOCK_SIZE * 8]; - unsigned int nblocks = min(nbytes >> 4, 8u); - - memcpy(keystream, walk.iv, SM4_BLOCK_SIZE); - if (nblocks > 1) - memcpy(&keystream[SM4_BLOCK_SIZE], src, - (nblocks - 1) * SM4_BLOCK_SIZE); - memcpy(walk.iv, src + (nblocks - 1) * SM4_BLOCK_SIZE, - SM4_BLOCK_SIZE); - - sm4_aesni_avx_crypt8(ctx->rkey_enc, keystream, - keystream, nblocks); - - crypto_xor_cpy(dst, src, keystream, - nblocks * SM4_BLOCK_SIZE); - dst += nblocks * SM4_BLOCK_SIZE; - src += nblocks * SM4_BLOCK_SIZE; - nbytes -= nblocks * SM4_BLOCK_SIZE; - } - - kernel_fpu_end(); - - /* tail */ - if (walk.nbytes == walk.total && nbytes > 0) { - u8 keystream[SM4_BLOCK_SIZE]; - - sm4_crypt_block(ctx->rkey_enc, keystream, walk.iv); - crypto_xor_cpy(dst, src, keystream, nbytes); - nbytes = 0; - } - - err = skcipher_walk_done(&walk, nbytes); - } - - return err; -} -EXPORT_SYMBOL_GPL(sm4_avx_cfb_decrypt); - -static int cfb_decrypt(struct skcipher_request *req) -{ - return sm4_avx_cfb_decrypt(req, SM4_CRYPT8_BLOCK_SIZE, - sm4_aesni_avx_cfb_dec_blk8); -} - int sm4_avx_ctr_crypt(struct skcipher_request *req, unsigned int bsize, sm4_crypt_func func) { @@ -408,24 +296,6 @@ static struct skcipher_alg sm4_aesni_avx_skciphers[] = { .decrypt = cbc_decrypt, }, { .base = { - .cra_name = "__cfb(sm4)", - .cra_driver_name = "__cfb-sm4-aesni-avx", - .cra_priority = 400, - .cra_flags = CRYPTO_ALG_INTERNAL, - .cra_blocksize = 1, - .cra_ctxsize = sizeof(struct sm4_ctx), - .cra_module = THIS_MODULE, - }, - .min_keysize = SM4_KEY_SIZE, - .max_keysize = SM4_KEY_SIZE, - .ivsize = SM4_BLOCK_SIZE, - .chunksize = SM4_BLOCK_SIZE, - .walksize = 8 * SM4_BLOCK_SIZE, - .setkey = sm4_skcipher_setkey, - .encrypt = sm4_cfb_encrypt, - .decrypt = cfb_decrypt, - }, { - .base = { .cra_name = "__ctr(sm4)", .cra_driver_name = "__ctr-sm4-aesni-avx", .cra_priority = 400, |