本文整理汇总了C++中crypto_skcipher_ctx函数的典型用法代码示例。如果您正苦于以下问题:C++ crypto_skcipher_ctx函数的具体用法?C++ crypto_skcipher_ctx怎么用?C++ crypto_skcipher_ctx使用的例子?那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了crypto_skcipher_ctx函数的20个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于我们的系统推荐出更棒的C++代码示例。
示例1: chacha20_neon
static int chacha20_neon(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct chacha20_ctx *ctx = crypto_skcipher_ctx(tfm);
struct skcipher_walk walk;
u32 state[16];
int err;
if (!may_use_simd() || req->cryptlen <= CHACHA20_BLOCK_SIZE)
return crypto_chacha20_crypt(req);
err = skcipher_walk_virt(&walk, req, true);
crypto_chacha20_init(state, ctx, walk.iv);
kernel_neon_begin();
while (walk.nbytes > 0) {
unsigned int nbytes = walk.nbytes;
if (nbytes < walk.total)
nbytes = round_down(nbytes, walk.stride);
chacha20_doneon(state, walk.dst.virt.addr, walk.src.virt.addr,
nbytes);
err = skcipher_walk_done(&walk, walk.nbytes - nbytes);
}
kernel_neon_end();
return err;
}
开发者ID:12zz,项目名称:linux,代码行数:30,代码来源:chacha20-neon-glue.c
示例2: crypto_chacha_crypt
int crypto_chacha_crypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct chacha_ctx *ctx = crypto_skcipher_ctx(tfm);
return chacha_stream_xor(req, ctx, req->iv);
}
开发者ID:avagin,项目名称:linux,代码行数:7,代码来源:chacha_generic.c
示例3: simd_skcipher_init
static int simd_skcipher_init(struct crypto_skcipher *tfm)
{
struct simd_skcipher_ctx *ctx = crypto_skcipher_ctx(tfm);
struct cryptd_skcipher *cryptd_tfm;
struct simd_skcipher_alg *salg;
struct skcipher_alg *alg;
unsigned reqsize;
alg = crypto_skcipher_alg(tfm);
salg = container_of(alg, struct simd_skcipher_alg, alg);
cryptd_tfm = cryptd_alloc_skcipher(salg->ialg_name,
CRYPTO_ALG_INTERNAL,
CRYPTO_ALG_INTERNAL);
if (IS_ERR(cryptd_tfm))
return PTR_ERR(cryptd_tfm);
ctx->cryptd_tfm = cryptd_tfm;
reqsize = crypto_skcipher_reqsize(cryptd_skcipher_child(cryptd_tfm));
reqsize = max(reqsize, crypto_skcipher_reqsize(&cryptd_tfm->base));
reqsize += sizeof(struct skcipher_request);
crypto_skcipher_set_reqsize(tfm, reqsize);
return 0;
}
开发者ID:avagin,项目名称:linux,代码行数:27,代码来源:simd.c
示例4: crypto_rfc3686_setkey
static int crypto_rfc3686_setkey(struct crypto_skcipher *parent,
const u8 *key, unsigned int keylen)
{
struct crypto_rfc3686_ctx *ctx = crypto_skcipher_ctx(parent);
struct crypto_skcipher *child = ctx->child;
int err;
/* the nonce is stored in bytes at end of key */
if (keylen < CTR_RFC3686_NONCE_SIZE)
return -EINVAL;
memcpy(ctx->nonce, key + (keylen - CTR_RFC3686_NONCE_SIZE),
CTR_RFC3686_NONCE_SIZE);
keylen -= CTR_RFC3686_NONCE_SIZE;
crypto_skcipher_clear_flags(child, CRYPTO_TFM_REQ_MASK);
crypto_skcipher_set_flags(child, crypto_skcipher_get_flags(parent) &
CRYPTO_TFM_REQ_MASK);
err = crypto_skcipher_setkey(child, key, keylen);
crypto_skcipher_set_flags(parent, crypto_skcipher_get_flags(child) &
CRYPTO_TFM_RES_MASK);
return err;
}
开发者ID:abhijit-mahajani-imgtec,项目名称:linux,代码行数:25,代码来源:ctr.c
示例5: __ecb_crypt
static int __ecb_crypt(struct skcipher_request *req,
void (*fn)(u8 out[], u8 const in[], u8 const rk[],
int rounds, int blocks))
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct aesbs_ctx *ctx = crypto_skcipher_ctx(tfm);
struct skcipher_walk walk;
int err;
err = skcipher_walk_virt(&walk, req, true);
kernel_neon_begin();
while (walk.nbytes >= AES_BLOCK_SIZE) {
unsigned int blocks = walk.nbytes / AES_BLOCK_SIZE;
if (walk.nbytes < walk.total)
blocks = round_down(blocks,
walk.stride / AES_BLOCK_SIZE);
fn(walk.dst.virt.addr, walk.src.virt.addr, ctx->rk,
ctx->rounds, blocks);
err = skcipher_walk_done(&walk,
walk.nbytes - blocks * AES_BLOCK_SIZE);
}
kernel_neon_end();
return err;
}
开发者ID:12zz,项目名称:linux,代码行数:28,代码来源:aes-neonbs-glue.c
示例6: crypto_rfc3686_crypt
static int crypto_rfc3686_crypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct crypto_rfc3686_ctx *ctx = crypto_skcipher_ctx(tfm);
struct crypto_skcipher *child = ctx->child;
unsigned long align = crypto_skcipher_alignmask(tfm);
struct crypto_rfc3686_req_ctx *rctx =
(void *)PTR_ALIGN((u8 *)skcipher_request_ctx(req), align + 1);
struct skcipher_request *subreq = &rctx->subreq;
u8 *iv = rctx->iv;
/* set up counter block */
memcpy(iv, ctx->nonce, CTR_RFC3686_NONCE_SIZE);
memcpy(iv + CTR_RFC3686_NONCE_SIZE, req->iv, CTR_RFC3686_IV_SIZE);
/* initialize counter portion of counter block */
*(__be32 *)(iv + CTR_RFC3686_NONCE_SIZE + CTR_RFC3686_IV_SIZE) =
cpu_to_be32(1);
skcipher_request_set_tfm(subreq, child);
skcipher_request_set_callback(subreq, req->base.flags,
req->base.complete, req->base.data);
skcipher_request_set_crypt(subreq, req->src, req->dst,
req->cryptlen, iv);
return crypto_skcipher_encrypt(subreq);
}
开发者ID:abhijit-mahajani-imgtec,项目名称:linux,代码行数:27,代码来源:ctr.c
示例7: cbc_decrypt
static int cbc_decrypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct aesbs_cbc_ctx *ctx = crypto_skcipher_ctx(tfm);
struct skcipher_walk walk;
int err;
err = skcipher_walk_virt(&walk, req, true);
kernel_neon_begin();
while (walk.nbytes >= AES_BLOCK_SIZE) {
unsigned int blocks = walk.nbytes / AES_BLOCK_SIZE;
if (walk.nbytes < walk.total)
blocks = round_down(blocks,
walk.stride / AES_BLOCK_SIZE);
aesbs_cbc_decrypt(walk.dst.virt.addr, walk.src.virt.addr,
ctx->key.rk, ctx->key.rounds, blocks,
walk.iv);
err = skcipher_walk_done(&walk,
walk.nbytes - blocks * AES_BLOCK_SIZE);
}
kernel_neon_end();
return err;
}
开发者ID:12zz,项目名称:linux,代码行数:27,代码来源:aes-neonbs-glue.c
示例8: sun4i_ss_des_setkey
/* check and set the DES key, prepare the mode to be used */
int sun4i_ss_des_setkey(struct crypto_skcipher *tfm, const u8 *key,
unsigned int keylen)
{
struct sun4i_tfm_ctx *op = crypto_skcipher_ctx(tfm);
struct sun4i_ss_ctx *ss = op->ss;
u32 flags;
u32 tmp[DES_EXPKEY_WORDS];
int ret;
if (unlikely(keylen != DES_KEY_SIZE)) {
dev_err(ss->dev, "Invalid keylen %u\n", keylen);
crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
return -EINVAL;
}
flags = crypto_skcipher_get_flags(tfm);
ret = des_ekey(tmp, key);
if (unlikely(!ret) && (flags & CRYPTO_TFM_REQ_FORBID_WEAK_KEYS)) {
crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_WEAK_KEY);
dev_dbg(ss->dev, "Weak key %u\n", keylen);
return -EINVAL;
}
op->keylen = keylen;
memcpy(op->key, key, keylen);
return 0;
}
开发者ID:Anjali05,项目名称:linux,代码行数:29,代码来源:sun4i-ss-cipher.c
示例9: sun4i_ss_aes_setkey
/* check and set the AES key, prepare the mode to be used */
int sun4i_ss_aes_setkey(struct crypto_skcipher *tfm, const u8 *key,
unsigned int keylen)
{
struct sun4i_tfm_ctx *op = crypto_skcipher_ctx(tfm);
struct sun4i_ss_ctx *ss = op->ss;
switch (keylen) {
case 128 / 8:
op->keymode = SS_AES_128BITS;
break;
case 192 / 8:
op->keymode = SS_AES_192BITS;
break;
case 256 / 8:
op->keymode = SS_AES_256BITS;
break;
default:
dev_err(ss->dev, "ERROR: Invalid keylen %u\n", keylen);
crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
return -EINVAL;
}
op->keylen = keylen;
memcpy(op->key, key, keylen);
return 0;
}
开发者ID:Anjali05,项目名称:linux,代码行数:26,代码来源:sun4i-ss-cipher.c
示例10: crypto_cbc_decrypt_one
static inline void crypto_cbc_decrypt_one(struct crypto_skcipher *tfm,
const u8 *src, u8 *dst)
{
struct crypto_cbc_ctx *ctx = crypto_skcipher_ctx(tfm);
crypto_cipher_decrypt_one(ctx->child, dst, src);
}
开发者ID:01org,项目名称:thunderbolt-software-kernel-tree,代码行数:7,代码来源:cbc.c
示例11: ctr_crypt
static int ctr_crypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct crypto_aes_ctx *ctx = aes_ctx(crypto_skcipher_ctx(tfm));
struct skcipher_walk walk;
unsigned int nbytes;
int err;
err = skcipher_walk_virt(&walk, req, true);
kernel_fpu_begin();
while ((nbytes = walk.nbytes) >= AES_BLOCK_SIZE) {
aesni_ctr_enc_tfm(ctx, walk.dst.virt.addr, walk.src.virt.addr,
nbytes & AES_BLOCK_MASK, walk.iv);
nbytes &= AES_BLOCK_SIZE - 1;
err = skcipher_walk_done(&walk, nbytes);
}
if (walk.nbytes) {
ctr_crypt_final(ctx, &walk);
err = skcipher_walk_done(&walk, 0);
}
kernel_fpu_end();
return err;
}
开发者ID:EMFPGA,项目名称:linux_media,代码行数:25,代码来源:aesni-intel_glue.c
示例12: exit_tfm
static void exit_tfm(struct crypto_skcipher *tfm)
{
struct priv *ctx = crypto_skcipher_ctx(tfm);
if (ctx->table)
gf128mul_free_64k(ctx->table);
crypto_free_skcipher(ctx->child);
}
开发者ID:avagin,项目名称:linux,代码行数:8,代码来源:lrw.c
示例13: xor_tweak
/*
* We compute the tweak masks twice (both before and after the ECB encryption or
* decryption) to avoid having to allocate a temporary buffer and/or make
* mutliple calls to the 'ecb(..)' instance, which usually would be slower than
* just doing the next_index() calls again.
*/
static int xor_tweak(struct skcipher_request *req, bool second_pass)
{
const int bs = LRW_BLOCK_SIZE;
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct priv *ctx = crypto_skcipher_ctx(tfm);
struct rctx *rctx = skcipher_request_ctx(req);
be128 t = rctx->t;
struct skcipher_walk w;
__be32 *iv;
u32 counter[4];
int err;
if (second_pass) {
req = &rctx->subreq;
/* set to our TFM to enforce correct alignment: */
skcipher_request_set_tfm(req, tfm);
}
err = skcipher_walk_virt(&w, req, false);
if (err)
return err;
iv = (__be32 *)w.iv;
counter[0] = be32_to_cpu(iv[3]);
counter[1] = be32_to_cpu(iv[2]);
counter[2] = be32_to_cpu(iv[1]);
counter[3] = be32_to_cpu(iv[0]);
while (w.nbytes) {
unsigned int avail = w.nbytes;
be128 *wsrc;
be128 *wdst;
wsrc = w.src.virt.addr;
wdst = w.dst.virt.addr;
do {
be128_xor(wdst++, &t, wsrc++);
/* T <- I*Key2, using the optimization
* discussed in the specification */
be128_xor(&t, &t, &ctx->mulinc[next_index(counter)]);
} while ((avail -= bs) >= bs);
if (second_pass && w.nbytes == w.total) {
iv[0] = cpu_to_be32(counter[3]);
iv[1] = cpu_to_be32(counter[2]);
iv[2] = cpu_to_be32(counter[1]);
iv[3] = cpu_to_be32(counter[0]);
}
err = skcipher_walk_done(&w, avail);
}
return err;
}
开发者ID:avagin,项目名称:linux,代码行数:62,代码来源:lrw.c
示例14: xts_decrypt
static int xts_decrypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct aesni_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
return glue_xts_req_128bit(&aesni_dec_xts, req,
XTS_TWEAK_CAST(aesni_xts_tweak),
aes_ctx(ctx->raw_tweak_ctx),
aes_ctx(ctx->raw_crypt_ctx));
}
开发者ID:EMFPGA,项目名称:linux_media,代码行数:10,代码来源:aesni-intel_glue.c
示例15: sun4i_ss_cbc_aes_encrypt
/* CBC AES */
int sun4i_ss_cbc_aes_encrypt(struct skcipher_request *areq)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(areq);
struct sun4i_tfm_ctx *op = crypto_skcipher_ctx(tfm);
struct sun4i_cipher_req_ctx *rctx = skcipher_request_ctx(areq);
rctx->mode = SS_OP_AES | SS_CBC | SS_ENABLED | SS_ENCRYPTION |
op->keymode;
return sun4i_ss_cipher_poll(areq);
}
开发者ID:Anjali05,项目名称:linux,代码行数:11,代码来源:sun4i-ss-cipher.c
示例16: sun4i_ss_ecb_des3_decrypt
int sun4i_ss_ecb_des3_decrypt(struct skcipher_request *areq)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(areq);
struct sun4i_tfm_ctx *op = crypto_skcipher_ctx(tfm);
struct sun4i_cipher_req_ctx *rctx = skcipher_request_ctx(areq);
rctx->mode = SS_OP_3DES | SS_ECB | SS_ENABLED | SS_DECRYPTION |
op->keymode;
return sun4i_ss_cipher_poll(areq);
}
开发者ID:Anjali05,项目名称:linux,代码行数:10,代码来源:sun4i-ss-cipher.c
示例17: ce_aes_setkey
static int ce_aes_setkey(struct crypto_skcipher *tfm, const u8 *in_key,
unsigned int key_len)
{
struct crypto_aes_ctx *ctx = crypto_skcipher_ctx(tfm);
int ret;
ret = ce_aes_expandkey(ctx, in_key, key_len);
if (!ret)
return 0;
crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
return -EINVAL;
}
开发者ID:0x7f454c46,项目名称:linux,代码行数:13,代码来源:aes-ce-glue.c
示例18: crypto_pcbc_init_tfm
static int crypto_pcbc_init_tfm(struct crypto_skcipher *tfm)
{
struct skcipher_instance *inst = skcipher_alg_instance(tfm);
struct crypto_spawn *spawn = skcipher_instance_ctx(inst);
struct crypto_pcbc_ctx *ctx = crypto_skcipher_ctx(tfm);
struct crypto_cipher *cipher;
cipher = crypto_spawn_cipher(spawn);
if (IS_ERR(cipher))
return PTR_ERR(cipher);
ctx->child = cipher;
return 0;
}
开发者ID:AlexShiLucky,项目名称:linux,代码行数:14,代码来源:pcbc.c
示例19: crypto_pcbc_setkey
static int crypto_pcbc_setkey(struct crypto_skcipher *parent, const u8 *key,
unsigned int keylen)
{
struct crypto_pcbc_ctx *ctx = crypto_skcipher_ctx(parent);
struct crypto_cipher *child = ctx->child;
int err;
crypto_cipher_clear_flags(child, CRYPTO_TFM_REQ_MASK);
crypto_cipher_set_flags(child, crypto_skcipher_get_flags(parent) &
CRYPTO_TFM_REQ_MASK);
err = crypto_cipher_setkey(child, key, keylen);
crypto_skcipher_set_flags(parent, crypto_cipher_get_flags(child) &
CRYPTO_TFM_RES_MASK);
return err;
}
开发者ID:AlexShiLucky,项目名称:linux,代码行数:15,代码来源:pcbc.c
示例20: sun4i_ss_des3_setkey
/* check and set the 3DES key, prepare the mode to be used */
int sun4i_ss_des3_setkey(struct crypto_skcipher *tfm, const u8 *key,
unsigned int keylen)
{
struct sun4i_tfm_ctx *op = crypto_skcipher_ctx(tfm);
struct sun4i_ss_ctx *ss = op->ss;
if (unlikely(keylen != 3 * DES_KEY_SIZE)) {
dev_err(ss->dev, "Invalid keylen %u\n", keylen);
crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
return -EINVAL;
}
op->keylen = keylen;
memcpy(op->key, key, keylen);
return 0;
}
开发者ID:Anjali05,项目名称:linux,代码行数:16,代码来源:sun4i-ss-cipher.c
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