Esempi in C++ (Cpp) per AES_wrap_key

Esempio n. 1

File: openssl.c Progetto: KaneRoot/COSE-C

bool AES_KW_Encrypt(COSE_RecipientInfo * pcose, const byte * pbKeyIn, int cbitKey, const byte *  pbContent, int  cbContent, cose_errback * perr)
{
	byte  *pbOut = NULL;
	AES_KEY key;
#ifdef USE_CBOR_CONTEXT
	cn_cbor_context * context = &pcose->m_encrypt.m_message.m_allocContext;
#endif
	cn_cbor * cnTmp = NULL;

	pbOut = COSE_CALLOC(cbContent + 8, 1, context);

	CHECK_CONDITION(AES_set_encrypt_key(pbKeyIn, cbitKey, &key) == 0, COSE_ERR_CRYPTO_FAIL);

	CHECK_CONDITION(AES_wrap_key(&key, NULL, pbOut, pbContent, cbContent), COSE_ERR_CRYPTO_FAIL);

	cnTmp = cn_cbor_data_create(pbOut, (int)cbContent + 8, CBOR_CONTEXT_PARAM_COMMA NULL);
	CHECK_CONDITION(cnTmp != NULL, COSE_ERR_CBOR);
	pbOut = NULL;
	CHECK_CONDITION(_COSE_array_replace(&pcose->m_encrypt.m_message, cnTmp, INDEX_BODY, CBOR_CONTEXT_PARAM_COMMA NULL), COSE_ERR_CBOR);
	cnTmp = NULL;

	return true;

errorReturn:
	COSE_FREE(cnTmp, context);
	if (pbOut != NULL) COSE_FREE(pbOut, context);
	return false;
}

Esempio n. 2

File: cms_env.c Progetto: 0x0B501E7E/platform_external_openssl

static int cms_RecipientInfo_kekri_encrypt(CMS_ContentInfo *cms,
					CMS_RecipientInfo *ri)
	{
	CMS_EncryptedContentInfo *ec;
	CMS_KEKRecipientInfo *kekri;
	AES_KEY actx;
	unsigned char *wkey = NULL;
	int wkeylen;
	int r = 0;

	ec = cms->d.envelopedData->encryptedContentInfo;

	kekri = ri->d.kekri;

	if (!kekri->key)
		{
		CMSerr(CMS_F_CMS_RECIPIENTINFO_KEKRI_ENCRYPT, CMS_R_NO_KEY);
		return 0;
		}

	if (AES_set_encrypt_key(kekri->key, kekri->keylen << 3, &actx))
		{ 
		CMSerr(CMS_F_CMS_RECIPIENTINFO_KEKRI_ENCRYPT,
						CMS_R_ERROR_SETTING_KEY);
		goto err;
		}

	wkey = OPENSSL_malloc(ec->keylen + 8);

	if (!wkey)
		{ 
		CMSerr(CMS_F_CMS_RECIPIENTINFO_KEKRI_ENCRYPT,
						ERR_R_MALLOC_FAILURE);
		goto err;
		}

	wkeylen = AES_wrap_key(&actx, NULL, wkey, ec->key, ec->keylen);

	if (wkeylen <= 0)
		{
		CMSerr(CMS_F_CMS_RECIPIENTINFO_KEKRI_ENCRYPT, CMS_R_WRAP_ERROR);
		goto err;
		}

	ASN1_STRING_set0(kekri->encryptedKey, wkey, wkeylen);

	r = 1;

	err:

	if (!r && wkey)
		OPENSSL_free(wkey);
	OPENSSL_cleanse(&actx, sizeof(actx));

	return r;

	}