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C++ crypto_tfm_ctx函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了C++中crypto_tfm_ctx函数的典型用法代码示例。如果您正苦于以下问题：C++ crypto_tfm_ctx函数的具体用法？C++ crypto_tfm_ctx怎么用？C++ crypto_tfm_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_tfm_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: pcrypt_aead_exit_tfm

static void pcrypt_aead_exit_tfm(struct crypto_tfm *tfm)
{
	struct pcrypt_aead_ctx *ctx = crypto_tfm_ctx(tfm);

	crypto_free_aead(ctx->child);
}
开发者ID:mikuhatsune001，项目名称:linux2.6.32，代码行数:6，代码来源:pcrypt.c


示例2: chksum_final

static void chksum_final(struct crypto_tfm *tfm, u8 *out)
{
	struct chksum_ctx *mctx = crypto_tfm_ctx(tfm);
	
	*(__le32 *)out = ~cpu_to_le32(mctx->crc);
}
开发者ID:janrinze，项目名称:loox7xxport，代码行数:6，代码来源:crc32c.c


示例3: crypto_pcbc_exit_tfm

static void crypto_pcbc_exit_tfm(struct crypto_tfm *tfm)
{
	struct crypto_pcbc_ctx *ctx = crypto_tfm_ctx(tfm);
	crypto_free_cipher(ctx->child);
}
开发者ID:Medvedroid，项目名称:OT_903D-kernel-2.6.35.7，代码行数:5，代码来源:pcbc.c


示例4: ecb_process

static void ecb_process(struct crypto_tfm *tfm, u8 *dst, u8 *src,
			cryptfn_t fn, int enc, void *info, int in_place)
{
	fn(crypto_tfm_ctx(tfm), dst, src);
}
开发者ID:CSCLOG，项目名称:beaglebone，代码行数:5，代码来源:cipher.c


示例5: des_decrypt

static void des_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
{
	struct s390_des_ctx *ctx = crypto_tfm_ctx(tfm);

	crypt_s390_km(KM_DEA_DECRYPT, ctx->key, out, in, DES_BLOCK_SIZE);
}
开发者ID:1800alex，项目名称:linux，代码行数:6，代码来源:des_s390.c


示例6: cprng_exit

static void cprng_exit(struct crypto_tfm *tfm)
{
	free_prng_context(crypto_tfm_ctx(tfm));
}
开发者ID:KAsp3rd，项目名称:android_kernel_lge_msm8992，代码行数:4，代码来源:ansi_cprng.c


示例7: lrw_encrypt

static int lrw_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
		       struct scatterlist *src, unsigned int nbytes)
{
	struct aesni_lrw_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
	be128 buf[8];
	struct lrw_crypt_req req = {
		.tbuf = buf,
		.tbuflen = sizeof(buf),

		.table_ctx = &ctx->lrw_table,
		.crypt_ctx = aes_ctx(ctx->raw_aes_ctx),
		.crypt_fn = lrw_xts_encrypt_callback,
	};
	int ret;

	desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;

	kernel_fpu_begin();
	ret = lrw_crypt(desc, dst, src, nbytes, &req);
	kernel_fpu_end();

	return ret;
}

static int lrw_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
		       struct scatterlist *src, unsigned int nbytes)
{
	struct aesni_lrw_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
	be128 buf[8];
	struct lrw_crypt_req req = {
		.tbuf = buf,
		.tbuflen = sizeof(buf),

		.table_ctx = &ctx->lrw_table,
		.crypt_ctx = aes_ctx(ctx->raw_aes_ctx),
		.crypt_fn = lrw_xts_decrypt_callback,
	};
	int ret;

	desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;

	kernel_fpu_begin();
	ret = lrw_crypt(desc, dst, src, nbytes, &req);
	kernel_fpu_end();

	return ret;
}

static int xts_aesni_setkey(struct crypto_tfm *tfm, const u8 *key,
			    unsigned int keylen)
{
	struct aesni_xts_ctx *ctx = crypto_tfm_ctx(tfm);
	u32 *flags = &tfm->crt_flags;
	int err;

	/* key consists of keys of equal size concatenated, therefore
	 * the length must be even
	 */
	if (keylen % 2) {
		*flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
		return -EINVAL;
	}

	/* first half of xts-key is for crypt */
	err = aes_set_key_common(tfm, ctx->raw_crypt_ctx, key, keylen / 2);
	if (err)
		return err;

	/* second half of xts-key is for tweak */
	return aes_set_key_common(tfm, ctx->raw_tweak_ctx, key + keylen / 2,
				  keylen / 2);
}


static void aesni_xts_tweak(void *ctx, u8 *out, const u8 *in)
{
	aesni_enc(ctx, out, in);
}

#ifdef CONFIG_X86_64

static void aesni_xts_enc(void *ctx, u128 *dst, const u128 *src, le128 *iv)
{
	glue_xts_crypt_128bit_one(ctx, dst, src, iv, GLUE_FUNC_CAST(aesni_enc));
}
开发者ID:a1d3s，项目名称:linux-bpi，代码行数:85，代码来源:aesni-intel_glue.c


示例8: crypto_rfc3686_exit_tfm

static void crypto_rfc3686_exit_tfm(struct crypto_tfm *tfm)
{
	struct crypto_rfc3686_ctx *ctx = crypto_tfm_ctx(tfm);

	crypto_free_ablkcipher(ctx->child);
}
开发者ID:0-T-0，项目名称:ps4-linux，代码行数:6，代码来源:ctr.c


示例9: lrw_aesni_exit_tfm

static void lrw_aesni_exit_tfm(struct crypto_tfm *tfm)
{
	struct aesni_lrw_ctx *ctx = crypto_tfm_ctx(tfm);

	lrw_free_table(&ctx->lrw_table);
}
开发者ID:a1d3s，项目名称:linux-bpi，代码行数:6，代码来源:aesni-intel_glue.c


示例10: crypto_rsa_set_key

/* public key, exponent, private key */
static int crypto_rsa_set_key(struct crypto_tfm *tfm, const u8 *in_key,
		              unsigned int key_len)
{
	struct crypto_rsa_ctx *ctx = crypto_tfm_ctx(tfm);
	int l;
	int part = 0;
	BIGNUM *x;
	RSA *rsa = &ctx->crr_rsa;

	cleanup_rsa(ctx);

	while (key_len >= 4) {
		l = ntohl(*((uint32_t*) in_key));

		l += 4;

		if (l > key_len)
			return -1;

		x = BN_mpi2bn(in_key, l, NULL);
		if (!x)
			return -1;

//		printk(KERN_INFO "PART %d\n", part);
		switch (part++) {
		case 0:
			rsa->n = x;
			break;

		case 1:
			rsa->e = x;
			break;

		case 2:
			rsa->d = x;
			break;

		case 3:
			rsa->p = x;
			break;

		case 4:
			rsa->q = x;
			break;

		case 5:
			rsa->dmp1 = x;
			break;

		case 6:
			rsa->dmq1 = x;
			break;

		case 7:
			rsa->iqmp = x;
			break;

		default:
			return -1;
		}

		key_len -= l;
		in_key  += l;
	}

	return 0;
}
开发者ID:Acidburn0zzz，项目名称:tcpcrypt，代码行数:68，代码来源:main.c


示例11: camellia_setkey

static int camellia_setkey(struct crypto_tfm *tfm, const u8 *in_key,
                           unsigned int key_len)
{
    return __camellia_setkey(crypto_tfm_ctx(tfm), in_key, key_len,
                             &tfm->crt_flags);
}
开发者ID:quadcores，项目名称:cbs_4.2.4，代码行数:6，代码来源:camellia_aesni_avx_glue.c


示例12: lzo_exit

static void lzo_exit(struct crypto_tfm *tfm)
{
    struct lzo_ctx *ctx = crypto_tfm_ctx(tfm);

    vfree(ctx->lzo_comp_mem);
}
开发者ID:274914765，项目名称:C，代码行数:6，代码来源:lzo.c


示例13: init

static void init(struct crypto_tfm *tfm)
{
	tfm->__crt_alg->cra_digest.dia_init(crypto_tfm_ctx(tfm));
}
开发者ID:openube，项目名称:android_kernel_sony_c2305，代码行数:4，代码来源:digest.c


示例14: des3_decrypt

static void des3_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
{
	struct s390_des_ctx *ctx = crypto_tfm_ctx(tfm);

	crypt_s390_km(KM_TDEA_192_DECRYPT, ctx->key, dst, src, DES_BLOCK_SIZE);
}
开发者ID:1800alex，项目名称:linux，代码行数:6，代码来源:des_s390.c


示例15: lz4_exit

static void lz4_exit(struct crypto_tfm *tfm)
{
	struct lz4_ctx *ctx = crypto_tfm_ctx(tfm);

	lz4_free_ctx(NULL, ctx->lz4_comp_mem);
}
开发者ID:BWhitten，项目名称:linux-stable，代码行数:6，代码来源:lz4.c


示例16: lrw_encrypt

static int lrw_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
		       struct scatterlist *src, unsigned int nbytes)
{
	struct cast6_lrw_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
	be128 buf[CAST6_PARALLEL_BLOCKS];
	struct crypt_priv crypt_ctx = {
		.ctx = &ctx->cast6_ctx,
		.fpu_enabled = false,
	};
	struct lrw_crypt_req req = {
		.tbuf = buf,
		.tbuflen = sizeof(buf),

		.table_ctx = &ctx->lrw_table,
		.crypt_ctx = &crypt_ctx,
		.crypt_fn = encrypt_callback,
	};
	int ret;

	desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
	ret = lrw_crypt(desc, dst, src, nbytes, &req);
	cast6_fpu_end(crypt_ctx.fpu_enabled);

	return ret;
}

static int lrw_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
		       struct scatterlist *src, unsigned int nbytes)
{
	struct cast6_lrw_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
	be128 buf[CAST6_PARALLEL_BLOCKS];
	struct crypt_priv crypt_ctx = {
		.ctx = &ctx->cast6_ctx,
		.fpu_enabled = false,
	};
	struct lrw_crypt_req req = {
		.tbuf = buf,
		.tbuflen = sizeof(buf),

		.table_ctx = &ctx->lrw_table,
		.crypt_ctx = &crypt_ctx,
		.crypt_fn = decrypt_callback,
	};
	int ret;

	desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
	ret = lrw_crypt(desc, dst, src, nbytes, &req);
	cast6_fpu_end(crypt_ctx.fpu_enabled);

	return ret;
}

static void lrw_exit_tfm(struct crypto_tfm *tfm)
{
	struct cast6_lrw_ctx *ctx = crypto_tfm_ctx(tfm);

	lrw_free_table(&ctx->lrw_table);
}

struct cast6_xts_ctx {
	struct cast6_ctx tweak_ctx;
	struct cast6_ctx crypt_ctx;
};

static int xts_cast6_setkey(struct crypto_tfm *tfm, const u8 *key,
			      unsigned int keylen)
{
	struct cast6_xts_ctx *ctx = crypto_tfm_ctx(tfm);
	u32 *flags = &tfm->crt_flags;
	int err;

	/* key consists of keys of equal size concatenated, therefore
	 * the length must be even
	 */
	if (keylen % 2) {
		*flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
		return -EINVAL;
	}

	/* first half of xts-key is for crypt */
	err = __cast6_setkey(&ctx->crypt_ctx, key, keylen / 2, flags);
	if (err)
		return err;

	/* second half of xts-key is for tweak */
	return __cast6_setkey(&ctx->tweak_ctx, key + keylen / 2, keylen / 2,
			      flags);
}

static int xts_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
		       struct scatterlist *src, unsigned int nbytes)
{
	struct cast6_xts_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);

	return glue_xts_crypt_128bit(&cast6_enc_xts, desc, dst, src, nbytes,
				     XTS_TWEAK_CAST(__cast6_encrypt),
				     &ctx->tweak_ctx, &ctx->crypt_ctx);
}

static int xts_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
//.........这里部分代码省略.........
开发者ID:03199618，项目名称:linux，代码行数:101，代码来源:cast6_avx_glue.c


示例17: crypto_fpu_encrypt

static int crypto_fpu_encrypt(struct blkcipher_desc *desc_in,
			      struct scatterlist *dst, struct scatterlist *src,
			      unsigned int nbytes)
{
	int err;
	struct crypto_fpu_ctx *ctx = crypto_blkcipher_ctx(desc_in->tfm);
	struct crypto_blkcipher *child = ctx->child;
	struct blkcipher_desc desc = {
		.tfm = child,
		.info = desc_in->info,
		.flags = desc_in->flags & ~CRYPTO_TFM_REQ_MAY_SLEEP,
	};

	kernel_fpu_begin();
	err = crypto_blkcipher_crt(desc.tfm)->encrypt(&desc, dst, src, nbytes);
	kernel_fpu_end();
	return err;
}

static int crypto_fpu_decrypt(struct blkcipher_desc *desc_in,
			      struct scatterlist *dst, struct scatterlist *src,
			      unsigned int nbytes)
{
	int err;
	struct crypto_fpu_ctx *ctx = crypto_blkcipher_ctx(desc_in->tfm);
	struct crypto_blkcipher *child = ctx->child;
	struct blkcipher_desc desc = {
		.tfm = child,
		.info = desc_in->info,
		.flags = desc_in->flags & ~CRYPTO_TFM_REQ_MAY_SLEEP,
	};

	kernel_fpu_begin();
	err = crypto_blkcipher_crt(desc.tfm)->decrypt(&desc, dst, src, nbytes);
	kernel_fpu_end();
	return err;
}

static int crypto_fpu_init_tfm(struct crypto_tfm *tfm)
{
	struct crypto_instance *inst = crypto_tfm_alg_instance(tfm);
	struct crypto_spawn *spawn = crypto_instance_ctx(inst);
	struct crypto_fpu_ctx *ctx = crypto_tfm_ctx(tfm);
	struct crypto_blkcipher *cipher;

	cipher = crypto_spawn_blkcipher(spawn);
	if (IS_ERR(cipher))
		return PTR_ERR(cipher);

	ctx->child = cipher;
	return 0;
}

static void crypto_fpu_exit_tfm(struct crypto_tfm *tfm)
{
	struct crypto_fpu_ctx *ctx = crypto_tfm_ctx(tfm);
	crypto_free_blkcipher(ctx->child);
}

static struct crypto_instance *crypto_fpu_alloc(struct rtattr **tb)
{
	struct crypto_instance *inst;
	struct crypto_alg *alg;
	int err;

	err = crypto_check_attr_type(tb, CRYPTO_ALG_TYPE_BLKCIPHER);
	if (err)
		return ERR_PTR(err);

	alg = crypto_get_attr_alg(tb, CRYPTO_ALG_TYPE_BLKCIPHER,
				  CRYPTO_ALG_TYPE_MASK);
	if (IS_ERR(alg))
		return ERR_CAST(alg);

	inst = crypto_alloc_instance("fpu", alg);
	if (IS_ERR(inst))
		goto out_put_alg;

	inst->alg.cra_flags = alg->cra_flags;
	inst->alg.cra_priority = alg->cra_priority;
	inst->alg.cra_blocksize = alg->cra_blocksize;
	inst->alg.cra_alignmask = alg->cra_alignmask;
	inst->alg.cra_type = alg->cra_type;
	inst->alg.cra_blkcipher.ivsize = alg->cra_blkcipher.ivsize;
	inst->alg.cra_blkcipher.min_keysize = alg->cra_blkcipher.min_keysize;
	inst->alg.cra_blkcipher.max_keysize = alg->cra_blkcipher.max_keysize;
	inst->alg.cra_ctxsize = sizeof(struct crypto_fpu_ctx);
	inst->alg.cra_init = crypto_fpu_init_tfm;
	inst->alg.cra_exit = crypto_fpu_exit_tfm;
	inst->alg.cra_blkcipher.setkey = crypto_fpu_setkey;
	inst->alg.cra_blkcipher.encrypt = crypto_fpu_encrypt;
	inst->alg.cra_blkcipher.decrypt = crypto_fpu_decrypt;

out_put_alg:
	crypto_mod_put(alg);
	return inst;
}

static void crypto_fpu_free(struct crypto_instance *inst)
{
//.........这里部分代码省略.........
开发者ID:mikuhatsune001，项目名称:linux2.6.32，代码行数:101，代码来源:fpu.c


示例18: cc_cipher_setkey

static int cc_cipher_setkey(struct crypto_ablkcipher *atfm, const u8 *key,
			    unsigned int keylen)
{
	struct crypto_tfm *tfm = crypto_ablkcipher_tfm(atfm);
	struct cc_cipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
	struct device *dev = drvdata_to_dev(ctx_p->drvdata);
	u32 tmp[DES_EXPKEY_WORDS];
	unsigned int max_key_buf_size = get_max_keysize(tfm);

	dev_dbg(dev, "Setting key in context @%p for %s. keylen=%u\n",
		ctx_p, crypto_tfm_alg_name(tfm), keylen);
	dump_byte_array("key", (u8 *)key, keylen);

	/* STAT_PHASE_0: Init and sanity checks */

	if (validate_keys_sizes(ctx_p, keylen)) {
		dev_err(dev, "Unsupported key size %d.\n", keylen);
		crypto_tfm_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
		return -EINVAL;
	}

	if (cc_is_hw_key(tfm)) {
		/* setting HW key slots */
		struct arm_hw_key_info *hki = (struct arm_hw_key_info *)key;

		if (ctx_p->flow_mode != S_DIN_to_AES) {
			dev_err(dev, "HW key not supported for non-AES flows\n");
			return -EINVAL;
		}

		ctx_p->hw.key1_slot = hw_key_to_cc_hw_key(hki->hw_key1);
		if (ctx_p->hw.key1_slot == END_OF_KEYS) {
			dev_err(dev, "Unsupported hw key1 number (%d)\n",
				hki->hw_key1);
			return -EINVAL;
		}

		if (ctx_p->cipher_mode == DRV_CIPHER_XTS ||
		    ctx_p->cipher_mode == DRV_CIPHER_ESSIV ||
		    ctx_p->cipher_mode == DRV_CIPHER_BITLOCKER) {
			if (hki->hw_key1 == hki->hw_key2) {
				dev_err(dev, "Illegal hw key numbers (%d,%d)\n",
					hki->hw_key1, hki->hw_key2);
				return -EINVAL;
			}
			ctx_p->hw.key2_slot =
				hw_key_to_cc_hw_key(hki->hw_key2);
			if (ctx_p->hw.key2_slot == END_OF_KEYS) {
				dev_err(dev, "Unsupported hw key2 number (%d)\n",
					hki->hw_key2);
				return -EINVAL;
			}
		}

		ctx_p->keylen = keylen;
		dev_dbg(dev, "cc_is_hw_key ret 0");

		return 0;
	}

	// verify weak keys
	if (ctx_p->flow_mode == S_DIN_to_DES) {
		if (!des_ekey(tmp, key) &&
		    (crypto_tfm_get_flags(tfm) & CRYPTO_TFM_REQ_WEAK_KEY)) {
			tfm->crt_flags |= CRYPTO_TFM_RES_WEAK_KEY;
			dev_dbg(dev, "weak DES key");
			return -EINVAL;
		}
	}
	if (ctx_p->cipher_mode == DRV_CIPHER_XTS &&
	    xts_check_key(tfm, key, keylen)) {
		dev_dbg(dev, "weak XTS key");
		return -EINVAL;
	}
	if (ctx_p->flow_mode == S_DIN_to_DES &&
	    keylen == DES3_EDE_KEY_SIZE &&
	    cc_verify_3des_keys(key, keylen)) {
		dev_dbg(dev, "weak 3DES key");
		return -EINVAL;
	}

	/* STAT_PHASE_1: Copy key to ctx */
	dma_sync_single_for_cpu(dev, ctx_p->user.key_dma_addr,
				max_key_buf_size, DMA_TO_DEVICE);

	memcpy(ctx_p->user.key, key, keylen);
	if (keylen == 24)
		memset(ctx_p->user.key + 24, 0, CC_AES_KEY_SIZE_MAX - 24);

	if (ctx_p->cipher_mode == DRV_CIPHER_ESSIV) {
		/* sha256 for key2 - use sw implementation */
		int key_len = keylen >> 1;
		int err;

		SHASH_DESC_ON_STACK(desc, ctx_p->shash_tfm);

		desc->tfm = ctx_p->shash_tfm;

		err = crypto_shash_digest(desc, ctx_p->user.key, key_len,
					  ctx_p->user.key + key_len);
//.........这里部分代码省略.........
开发者ID:ReneNyffenegger，项目名称:linux，代码行数:101，代码来源:cc_cipher.c


示例19: aes_set_key

static int aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
		       unsigned int key_len)
{
	return aes_set_key_common(tfm, crypto_tfm_ctx(tfm), in_key, key_len);
}
开发者ID:DirtyDroidX，项目名称:android_kernel_htc_m8ul，代码行数:5，代码来源:aesni-intel_glue.c


示例20: crypto_rfc4106_exit_tfm

static void crypto_rfc4106_exit_tfm(struct crypto_tfm *tfm)
{
	struct crypto_rfc4106_ctx *ctx = crypto_tfm_ctx(tfm);

	crypto_free_aead(ctx->child);
}
开发者ID:0x000000FF，项目名称:edison-linux，代码行数:6，代码来源:gcm.c



注：本文中的crypto_tfm_ctx函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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