C++ (Cpp) nx_ctx_init示例

示例#1

文件： nx-aes-ccm.c 项目： Claude1986/Atheros-CSI-Tool

static int ccm_aes_nx_set_key(struct crypto_aead *tfm,
			      const u8           *in_key,
			      unsigned int        key_len)
{
	struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(&tfm->base);
	struct nx_csbcpb *csbcpb = nx_ctx->csbcpb;
	struct nx_csbcpb *csbcpb_aead = nx_ctx->csbcpb_aead;

	nx_ctx_init(nx_ctx, HCOP_FC_AES);

	switch (key_len) {
	case AES_KEYSIZE_128:
		NX_CPB_SET_KEY_SIZE(csbcpb, NX_KS_AES_128);
		NX_CPB_SET_KEY_SIZE(csbcpb_aead, NX_KS_AES_128);
		nx_ctx->ap = &nx_ctx->props[NX_PROPS_AES_128];
		break;
	default:
		return -EINVAL;
	}

	csbcpb->cpb.hdr.mode = NX_MODE_AES_CCM;
	memcpy(csbcpb->cpb.aes_ccm.key, in_key, key_len);

	csbcpb_aead->cpb.hdr.mode = NX_MODE_AES_CCA;
	memcpy(csbcpb_aead->cpb.aes_cca.key, in_key, key_len);

	return 0;

}

示例#2

文件： nx-aes-ctr.c 项目： Claude1986/Atheros-CSI-Tool

static int ctr_aes_nx_set_key(struct crypto_tfm *tfm,
			      const u8          *in_key,
			      unsigned int       key_len)
{
	struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(tfm);
	struct nx_csbcpb *csbcpb = nx_ctx->csbcpb;

	nx_ctx_init(nx_ctx, HCOP_FC_AES);

	switch (key_len) {
	case AES_KEYSIZE_128:
		NX_CPB_SET_KEY_SIZE(csbcpb, NX_KS_AES_128);
		nx_ctx->ap = &nx_ctx->props[NX_PROPS_AES_128];
		break;
	case AES_KEYSIZE_192:
		NX_CPB_SET_KEY_SIZE(csbcpb, NX_KS_AES_192);
		nx_ctx->ap = &nx_ctx->props[NX_PROPS_AES_192];
		break;
	case AES_KEYSIZE_256:
		NX_CPB_SET_KEY_SIZE(csbcpb, NX_KS_AES_256);
		nx_ctx->ap = &nx_ctx->props[NX_PROPS_AES_256];
		break;
	default:
		return -EINVAL;
	}

	csbcpb->cpb.hdr.mode = NX_MODE_AES_CTR;
	memcpy(csbcpb->cpb.aes_ctr.key, in_key, key_len);

	return 0;
}

示例#3

文件： nx-sha256.c 项目： coderkan/linux

static int nx_sha256_init(struct shash_desc *desc)
{
	struct sha256_state *sctx = shash_desc_ctx(desc);
	struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(&desc->tfm->base);
	struct nx_sg *out_sg;
	int len;
	u32 max_sg_len;

	nx_ctx_init(nx_ctx, HCOP_FC_SHA);

	memset(sctx, 0, sizeof *sctx);

	nx_ctx->ap = &nx_ctx->props[NX_PROPS_SHA256];

	NX_CPB_SET_DIGEST_SIZE(nx_ctx->csbcpb, NX_DS_SHA256);

	max_sg_len = min_t(u64, nx_ctx->ap->sglen,
			nx_driver.of.max_sg_len/sizeof(struct nx_sg));
	max_sg_len = min_t(u64, max_sg_len,
			nx_ctx->ap->databytelen/NX_PAGE_SIZE);

	len = SHA256_DIGEST_SIZE;
	out_sg = nx_build_sg_list(nx_ctx->out_sg, (u8 *)sctx->state,
				  &len, max_sg_len);
	nx_ctx->op.outlen = (nx_ctx->out_sg - out_sg) * sizeof(struct nx_sg);

	if (len != SHA256_DIGEST_SIZE)
		return -EINVAL;

	sctx->state[0] = __cpu_to_be32(SHA256_H0);
	sctx->state[1] = __cpu_to_be32(SHA256_H1);
	sctx->state[2] = __cpu_to_be32(SHA256_H2);
	sctx->state[3] = __cpu_to_be32(SHA256_H3);
	sctx->state[4] = __cpu_to_be32(SHA256_H4);
	sctx->state[5] = __cpu_to_be32(SHA256_H5);
	sctx->state[6] = __cpu_to_be32(SHA256_H6);
	sctx->state[7] = __cpu_to_be32(SHA256_H7);
	sctx->count = 0;

	return 0;
}

示例#4

文件： nx-sha512.c 项目： 0x000000FF/edison-linux

static int nx_sha512_init(struct shash_desc *desc)
{
	struct sha512_state *sctx = shash_desc_ctx(desc);
	struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(&desc->tfm->base);
	int len;
	int rc;

	nx_ctx_init(nx_ctx, HCOP_FC_SHA);

	memset(sctx, 0, sizeof *sctx);

	nx_ctx->ap = &nx_ctx->props[NX_PROPS_SHA512];

	NX_CPB_SET_DIGEST_SIZE(nx_ctx->csbcpb, NX_DS_SHA512);

	len = SHA512_DIGEST_SIZE;
	rc = nx_sha_build_sg_list(nx_ctx, nx_ctx->out_sg,
				  &nx_ctx->op.outlen,
				  &len,
				  (u8 *)sctx->state,
				  NX_DS_SHA512);

	if (rc || len != SHA512_DIGEST_SIZE)
		goto out;

	sctx->state[0] = __cpu_to_be64(SHA512_H0);
	sctx->state[1] = __cpu_to_be64(SHA512_H1);
	sctx->state[2] = __cpu_to_be64(SHA512_H2);
	sctx->state[3] = __cpu_to_be64(SHA512_H3);
	sctx->state[4] = __cpu_to_be64(SHA512_H4);
	sctx->state[5] = __cpu_to_be64(SHA512_H5);
	sctx->state[6] = __cpu_to_be64(SHA512_H6);
	sctx->state[7] = __cpu_to_be64(SHA512_H7);
	sctx->count[0] = 0;

out:
	return 0;
}