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C++ crypto_aead_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_aead_ctx函数的典型用法代码示例。如果您正苦于以下问题：C++ crypto_aead_ctx函数的具体用法？C++ crypto_aead_ctx怎么用？C++ crypto_aead_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_aead_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: crypto_gcm_init_crypt

static void crypto_gcm_init_crypt(struct ablkcipher_request *ablk_req,
                                  struct aead_request *req,
                                  unsigned int cryptlen)
{
    struct crypto_aead *aead = crypto_aead_reqtfm(req);
    struct crypto_gcm_ctx *ctx = crypto_aead_ctx(aead);
    struct crypto_gcm_req_priv_ctx *pctx = crypto_gcm_reqctx(req);
    struct scatterlist *dst;
    __be32 counter = cpu_to_be32(1);

    memset(pctx->auth_tag, 0, sizeof(pctx->auth_tag));
    memcpy(req->iv + 12, &counter, 4);

    sg_init_table(pctx->src, 2);
    sg_set_buf(pctx->src, pctx->auth_tag, sizeof(pctx->auth_tag));
    scatterwalk_sg_chain(pctx->src, 2, req->src);

    dst = pctx->src;
    if (req->src != req->dst) {
        sg_init_table(pctx->dst, 2);
        sg_set_buf(pctx->dst, pctx->auth_tag, sizeof(pctx->auth_tag));
        scatterwalk_sg_chain(pctx->dst, 2, req->dst);
        dst = pctx->dst;
    }

    ablkcipher_request_set_tfm(ablk_req, ctx->ctr);
    ablkcipher_request_set_crypt(ablk_req, pctx->src, dst,
                                 cryptlen + sizeof(pctx->auth_tag),
                                 req->iv);
}
开发者ID:jtcriswell，项目名称:linux256，代码行数:30，代码来源:gcm.c


示例2: nitrox_aes_gcm_setkey

static int nitrox_aes_gcm_setkey(struct crypto_aead *aead, const u8 *key,
				 unsigned int keylen)
{
	int aes_keylen;
	struct nitrox_crypto_ctx *nctx = crypto_aead_ctx(aead);
	struct flexi_crypto_context *fctx;
	union fc_ctx_flags flags;

	aes_keylen = flexi_aes_keylen(keylen);
	if (aes_keylen < 0) {
		crypto_aead_set_flags(aead, CRYPTO_TFM_RES_BAD_KEY_LEN);
		return -EINVAL;
	}

	/* fill crypto context */
	fctx = nctx->u.fctx;
	flags.f = be64_to_cpu(fctx->flags.f);
	flags.w0.aes_keylen = aes_keylen;
	fctx->flags.f = cpu_to_be64(flags.f);

	/* copy enc key to context */
	memset(&fctx->crypto, 0, sizeof(fctx->crypto));
	memcpy(fctx->crypto.u.key, key, keylen);

	return 0;
}
开发者ID:avagin，项目名称:linux，代码行数:26，代码来源:nitrox_aead.c


示例3: seqiv_aead_decrypt

static int seqiv_aead_decrypt(struct aead_request *req)
{
	struct crypto_aead *geniv = crypto_aead_reqtfm(req);
	struct aead_geniv_ctx *ctx = crypto_aead_ctx(geniv);
	struct aead_request *subreq = aead_request_ctx(req);
	crypto_completion_t compl;
	void *data;
	unsigned int ivsize = 8;

	if (req->cryptlen < ivsize + crypto_aead_authsize(geniv))
		return -EINVAL;

	aead_request_set_tfm(subreq, ctx->child);

	compl = req->base.complete;
	data = req->base.data;

	aead_request_set_callback(subreq, req->base.flags, compl, data);
	aead_request_set_crypt(subreq, req->src, req->dst,
			       req->cryptlen - ivsize, req->iv);
	aead_request_set_ad(subreq, req->assoclen + ivsize);

	scatterwalk_map_and_copy(req->iv, req->src, req->assoclen, ivsize, 0);

	return crypto_aead_decrypt(subreq);
}
开发者ID:AK101111，项目名称:linux，代码行数:26，代码来源:seqiv.c


示例4: nitrox_aes_gcm_dec

static int nitrox_aes_gcm_dec(struct aead_request *areq)
{
	struct crypto_aead *aead = crypto_aead_reqtfm(areq);
	struct nitrox_crypto_ctx *nctx = crypto_aead_ctx(aead);
	struct nitrox_aead_rctx *rctx = aead_request_ctx(areq);
	struct se_crypto_request *creq = &rctx->nkreq.creq;
	struct flexi_crypto_context *fctx = nctx->u.fctx;
	int ret;

	memcpy(fctx->crypto.iv, areq->iv, GCM_AES_SALT_SIZE);

	rctx->cryptlen = areq->cryptlen - aead->authsize;
	rctx->assoclen = areq->assoclen;
	rctx->srclen = areq->cryptlen + areq->assoclen;
	rctx->dstlen = rctx->srclen - aead->authsize;
	rctx->iv = &areq->iv[GCM_AES_SALT_SIZE];
	rctx->ivsize = GCM_AES_IV_SIZE - GCM_AES_SALT_SIZE;
	rctx->flags = areq->base.flags;
	rctx->ctx_handle = nctx->u.ctx_handle;
	rctx->src = areq->src;
	rctx->dst = areq->dst;
	rctx->ctrl_arg = DECRYPT;
	ret = nitrox_set_creq(rctx);
	if (ret)
		return ret;

	/* send the crypto request */
	return nitrox_process_se_request(nctx->ndev, creq, nitrox_aead_callback,
					 areq);
}
开发者ID:avagin，项目名称:linux，代码行数:30，代码来源:nitrox_aead.c


示例5: crypto_ccm_setkey

static int crypto_ccm_setkey(struct crypto_aead *aead, const u8 *key,
			     unsigned int keylen)
{
	struct crypto_ccm_ctx *ctx = crypto_aead_ctx(aead);
	struct crypto_ablkcipher *ctr = ctx->ctr;
	struct crypto_cipher *tfm = ctx->cipher;
	int err = 0;

	crypto_ablkcipher_clear_flags(ctr, CRYPTO_TFM_REQ_MASK);
	crypto_ablkcipher_set_flags(ctr, crypto_aead_get_flags(aead) &
				    CRYPTO_TFM_REQ_MASK);
	err = crypto_ablkcipher_setkey(ctr, key, keylen);
	crypto_aead_set_flags(aead, crypto_ablkcipher_get_flags(ctr) &
			      CRYPTO_TFM_RES_MASK);
	if (err)
		goto out;

	crypto_cipher_clear_flags(tfm, CRYPTO_TFM_REQ_MASK);
	crypto_cipher_set_flags(tfm, crypto_aead_get_flags(aead) &
				    CRYPTO_TFM_REQ_MASK);
	err = crypto_cipher_setkey(tfm, key, keylen);
	crypto_aead_set_flags(aead, crypto_cipher_get_flags(tfm) &
			      CRYPTO_TFM_RES_MASK);

out:
	return err;
}
开发者ID:Kanel，项目名称:CloudMAC-VAP-Driver，代码行数:27，代码来源:crypto-ccm.c


示例6: crypto_ccm_auth

static int crypto_ccm_auth(struct aead_request *req, struct scatterlist *plain,
			   unsigned int cryptlen)
{
	struct crypto_aead *aead = crypto_aead_reqtfm(req);
	struct crypto_ccm_ctx *ctx = crypto_aead_ctx(aead);
	struct crypto_ccm_req_priv_ctx *pctx = crypto_ccm_reqctx(req);
	struct crypto_cipher *cipher = ctx->cipher;
	unsigned int assoclen = req->assoclen;
	u8 *odata = pctx->odata;
	u8 *idata = pctx->idata;
	int err;

	/* format control data for input */
	err = format_input(odata, req, cryptlen);
	if (err)
		goto out;

	/* encrypt first block to use as start in computing mac  */
	crypto_cipher_encrypt_one(cipher, odata, odata);

	/* format associated data and compute into mac */
	if (assoclen) {
		pctx->ilen = format_adata(idata, assoclen);
		get_data_to_compute(cipher, pctx, req->assoc, req->assoclen);
	} else {
		pctx->ilen = 0;
	}

	/* compute plaintext into mac */
	if (cryptlen)
		get_data_to_compute(cipher, pctx, plain, cryptlen);

out:
	return err;
}
开发者ID:Kanel，项目名称:CloudMAC-VAP-Driver，代码行数:35，代码来源:crypto-ccm.c


示例7: crypto_ccm_exit_tfm

static void crypto_ccm_exit_tfm(struct crypto_aead *tfm)
{
	struct crypto_ccm_ctx *ctx = crypto_aead_ctx(tfm);

	crypto_free_cipher(ctx->cipher);
	crypto_free_ablkcipher(ctx->ctr);
}
开发者ID:EvolutionMod，项目名称:ath10-lenovo，代码行数:7，代码来源:crypto-ccm.c


示例8: crypto_ccm_init_tfm

static int crypto_ccm_init_tfm(struct crypto_aead *tfm)
{
	struct aead_instance *inst = aead_alg_instance(tfm);
	struct ccm_instance_ctx *ictx = aead_instance_ctx(inst);
	struct crypto_ccm_ctx *ctx = crypto_aead_ctx(tfm);
	struct crypto_cipher *cipher;
	struct crypto_ablkcipher *ctr;
	unsigned long align;
	int err;

	cipher = crypto_spawn_cipher(&ictx->cipher);
	if (IS_ERR(cipher))
		return PTR_ERR(cipher);

	ctr = crypto_spawn_skcipher(&ictx->ctr);
	err = PTR_ERR(ctr);
	if (IS_ERR(ctr))
		goto err_free_cipher;

	ctx->cipher = cipher;
	ctx->ctr = ctr;

	align = crypto_aead_alignmask(tfm);
	align &= ~(crypto_tfm_ctx_alignment() - 1);
	crypto_aead_set_reqsize(
		tfm,
		align + sizeof(struct crypto_ccm_req_priv_ctx) +
		crypto_ablkcipher_reqsize(ctr));

	return 0;

err_free_cipher:
	crypto_free_cipher(cipher);
	return err;
}
开发者ID:EvolutionMod，项目名称:ath10-lenovo，代码行数:35，代码来源:crypto-ccm.c


示例9: nitrox_rfc4106_dec

static int nitrox_rfc4106_dec(struct aead_request *areq)
{
	struct crypto_aead *aead = crypto_aead_reqtfm(areq);
	struct nitrox_crypto_ctx *nctx = crypto_aead_ctx(aead);
	struct nitrox_rfc4106_rctx *rctx = aead_request_ctx(areq);
	struct nitrox_aead_rctx *aead_rctx = &rctx->base;
	struct se_crypto_request *creq = &aead_rctx->nkreq.creq;
	int ret;

	aead_rctx->cryptlen = areq->cryptlen - aead->authsize;
	aead_rctx->assoclen = areq->assoclen - GCM_RFC4106_IV_SIZE;
	aead_rctx->srclen =
		areq->cryptlen - GCM_RFC4106_IV_SIZE + areq->assoclen;
	aead_rctx->dstlen = aead_rctx->srclen - aead->authsize;
	aead_rctx->iv = areq->iv;
	aead_rctx->ivsize = GCM_RFC4106_IV_SIZE;
	aead_rctx->flags = areq->base.flags;
	aead_rctx->ctx_handle = nctx->u.ctx_handle;
	aead_rctx->ctrl_arg = DECRYPT;

	ret = nitrox_rfc4106_set_aead_rctx_sglist(areq);
	if (ret)
		return ret;

	ret = nitrox_set_creq(aead_rctx);
	if (ret)
		return ret;

	/* send the crypto request */
	return nitrox_process_se_request(nctx->ndev, creq,
					 nitrox_rfc4106_callback, areq);
}
开发者ID:avagin，项目名称:linux，代码行数:32，代码来源:nitrox_aead.c


示例10: pcrypt_aead_init_tfm

static int pcrypt_aead_init_tfm(struct crypto_aead *tfm)
{
	int cpu, cpu_index;
	struct aead_instance *inst = aead_alg_instance(tfm);
	struct pcrypt_instance_ctx *ictx = aead_instance_ctx(inst);
	struct pcrypt_aead_ctx *ctx = crypto_aead_ctx(tfm);
	struct crypto_aead *cipher;

	cpu_index = (unsigned int)atomic_inc_return(&ictx->tfm_count) %
		    cpumask_weight(cpu_online_mask);

	ctx->cb_cpu = cpumask_first(cpu_online_mask);
	for (cpu = 0; cpu < cpu_index; cpu++)
		ctx->cb_cpu = cpumask_next(ctx->cb_cpu, cpu_online_mask);

	cipher = crypto_spawn_aead(&ictx->spawn);

	if (IS_ERR(cipher))
		return PTR_ERR(cipher);

	ctx->child = cipher;
	crypto_aead_set_reqsize(tfm, sizeof(struct pcrypt_request) +
				     sizeof(struct aead_request) +
				     crypto_aead_reqsize(cipher));

	return 0;
}
开发者ID:AlexShiLucky，项目名称:linux，代码行数:27，代码来源:pcrypt.c


示例11: simd_aead_init

static int simd_aead_init(struct crypto_aead *tfm)
{
	struct simd_aead_ctx *ctx = crypto_aead_ctx(tfm);
	struct cryptd_aead *cryptd_tfm;
	struct simd_aead_alg *salg;
	struct aead_alg *alg;
	unsigned reqsize;

	alg = crypto_aead_alg(tfm);
	salg = container_of(alg, struct simd_aead_alg, alg);

	cryptd_tfm = cryptd_alloc_aead(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_aead_reqsize(cryptd_aead_child(cryptd_tfm));
	reqsize = max(reqsize, crypto_aead_reqsize(&cryptd_tfm->base));
	reqsize += sizeof(struct aead_request);

	crypto_aead_set_reqsize(tfm, reqsize);

	return 0;
}
开发者ID:avagin，项目名称:linux，代码行数:26，代码来源:simd.c


示例12: simd_aead_setauthsize

static int simd_aead_setauthsize(struct crypto_aead *tfm, unsigned int authsize)
{
	struct simd_aead_ctx *ctx = crypto_aead_ctx(tfm);
	struct crypto_aead *child = &ctx->cryptd_tfm->base;

	return crypto_aead_setauthsize(child, authsize);
}
开发者ID:avagin，项目名称:linux，代码行数:7，代码来源:simd.c


示例13: cryptd_aegis256_aesni_setauthsize

static int cryptd_aegis256_aesni_setauthsize(struct crypto_aead *aead,
					     unsigned int authsize)
{
	struct cryptd_aead **ctx = crypto_aead_ctx(aead);
	struct cryptd_aead *cryptd_tfm = *ctx;

	return crypto_aead_setauthsize(&cryptd_tfm->base, authsize);
}
开发者ID:CCNITSilchar，项目名称:linux，代码行数:8，代码来源:aegis256-aesni-glue.c


示例14: rfc4106_set_key

static int rfc4106_set_key(struct crypto_aead *parent, const u8 *key,
			   unsigned int key_len)
{
	struct cryptd_aead **ctx = crypto_aead_ctx(parent);
	struct cryptd_aead *cryptd_tfm = *ctx;

	return crypto_aead_setkey(&cryptd_tfm->base, key, key_len);
}
开发者ID:EMFPGA，项目名称:linux_media，代码行数:8，代码来源:aesni-intel_glue.c


示例15: cryptd_aegis256_aesni_setkey

static int cryptd_aegis256_aesni_setkey(struct crypto_aead *aead,
					const u8 *key, unsigned int keylen)
{
	struct cryptd_aead **ctx = crypto_aead_ctx(aead);
	struct cryptd_aead *cryptd_tfm = *ctx;

	return crypto_aead_setkey(&cryptd_tfm->base, key, keylen);
}
开发者ID:CCNITSilchar，项目名称:linux，代码行数:8，代码来源:aegis256-aesni-glue.c


示例16: rfc4106_set_authsize

/* This is the Integrity Check Value (aka the authentication tag length and can
 * be 8, 12 or 16 bytes long. */
static int rfc4106_set_authsize(struct crypto_aead *parent,
				unsigned int authsize)
{
	struct cryptd_aead **ctx = crypto_aead_ctx(parent);
	struct cryptd_aead *cryptd_tfm = *ctx;

	return crypto_aead_setauthsize(&cryptd_tfm->base, authsize);
}
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17: crypto_ccm_decrypt

static int crypto_ccm_decrypt(struct aead_request *req)
{
	struct crypto_aead *aead = crypto_aead_reqtfm(req);
	struct crypto_ccm_ctx *ctx = crypto_aead_ctx(aead);
	struct crypto_ccm_req_priv_ctx *pctx = crypto_ccm_reqctx(req);
	struct ablkcipher_request *abreq = &pctx->abreq;
	struct scatterlist *dst;
	unsigned int authsize = crypto_aead_authsize(aead);
	unsigned int cryptlen = req->cryptlen;
	u8 *authtag = pctx->auth_tag;
	u8 *odata = pctx->odata;
	u8 *iv = req->iv;
	int err;

	if (cryptlen < authsize)
		return -EINVAL;
	cryptlen -= authsize;

	err = crypto_ccm_check_iv(iv);
	if (err)
		return err;

	pctx->flags = aead_request_flags(req);

	scatterwalk_map_and_copy(authtag, req->src, cryptlen, authsize, 0);

	memset(iv + 15 - iv[0], 0, iv[0] + 1);

	sg_init_table(pctx->src, 2);
	sg_set_buf(pctx->src, authtag, 16);
	scatterwalk_sg_chain(pctx->src, 2, req->src);

	dst = pctx->src;
	if (req->src != req->dst) {
		sg_init_table(pctx->dst, 2);
		sg_set_buf(pctx->dst, authtag, 16);
		scatterwalk_sg_chain(pctx->dst, 2, req->dst);
		dst = pctx->dst;
	}

	ablkcipher_request_set_tfm(abreq, ctx->ctr);
	ablkcipher_request_set_callback(abreq, pctx->flags,
					crypto_ccm_decrypt_done, req);
	ablkcipher_request_set_crypt(abreq, pctx->src, dst, cryptlen + 16, iv);
	err = crypto_ablkcipher_decrypt(abreq);
	if (err)
		return err;

	err = crypto_ccm_auth(req, req->dst, cryptlen);
	if (err)
		return err;

	/* verify */
	if (crypto_memneq(authtag, odata, authsize))
		return -EBADMSG;

	return err;
}
开发者ID:Kanel，项目名称:CloudMAC-VAP-Driver，代码行数:58，代码来源:crypto-ccm.c


示例18: PTR_ALIGN

static inline struct
generic_gcmaes_ctx *generic_gcmaes_ctx_get(struct crypto_aead *tfm)
{
	unsigned long align = AESNI_ALIGN;

	if (align <= crypto_tfm_ctx_alignment())
		align = 1;
	return PTR_ALIGN(crypto_aead_ctx(tfm), align);
}
开发者ID:EMFPGA，项目名称:linux_media，代码行数:9，代码来源:aesni-intel_glue.c


示例19: aead_authenc_setauthsize

static int aead_authenc_setauthsize(struct crypto_aead *authenc,
						 unsigned int authsize)
{
	struct talitos_ctx *ctx = crypto_aead_ctx(authenc);

	ctx->authsize = authsize;

	return 0;
}
开发者ID:10x-Amin，项目名称:x10_Th_kernel，代码行数:9，代码来源:talitos.c


示例20: omap_aes_4106gcm_decrypt

int omap_aes_4106gcm_decrypt(struct aead_request *req)
{
	struct omap_aes_ctx *ctx = crypto_aead_ctx(crypto_aead_reqtfm(req));
	struct omap_aes_reqctx *rctx = aead_request_ctx(req);

	memcpy(rctx->iv, ctx->nonce, 4);
	memcpy(rctx->iv + 4, req->iv, 8);
	return omap_aes_gcm_crypt(req, FLAGS_GCM | FLAGS_RFC4106_GCM);
}
开发者ID:AlexShiLucky，项目名称:linux，代码行数:9，代码来源:omap-aes-gcm.c



注：本文中的crypto_aead_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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C++ crypto_aead_reqsize函数代码示例发布时间：2022-05-30
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