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xs/sc_ssl/openssl/source/apps/cms.c  view on Meta::CPAN

	if (operation == SMIME_DATA_CREATE)
		{
		cms = CMS_data_create(in, flags);
		}
	else if (operation == SMIME_DIGEST_CREATE)
		{
		cms = CMS_digest_create(in, sign_md, flags);
		}
	else if (operation == SMIME_COMPRESS)
		{
		cms = CMS_compress(in, -1, flags);
		}
	else if (operation == SMIME_ENCRYPT)
		{
		flags |= CMS_PARTIAL;
		cms = CMS_encrypt(encerts, in, cipher, flags);
		if (!cms)
			goto end;
		if (secret_key)
			{
			if (!CMS_add0_recipient_key(cms, NID_undef, 
						secret_key, secret_keylen,
						secret_keyid, secret_keyidlen,
						NULL, NULL, NULL))
				goto end;
			/* NULL these because call absorbs them */
			secret_key = NULL;
			secret_keyid = NULL;
			}
		if (!(flags & CMS_STREAM))
			{
			if (!CMS_final(cms, in, NULL, flags))
				goto end;
			}
		}
	else if (operation == SMIME_ENCRYPTED_ENCRYPT)
		{
		cms = CMS_EncryptedData_encrypt(in, cipher,
						secret_key, secret_keylen,
						flags);

		}
	else if (operation == SMIME_SIGN_RECEIPT)
		{
		CMS_ContentInfo *srcms = NULL;
		STACK_OF(CMS_SignerInfo) *sis;
		CMS_SignerInfo *si;
		sis = CMS_get0_SignerInfos(cms);
		if (!sis)
			goto end;
		si = sk_CMS_SignerInfo_value(sis, 0);
		srcms = CMS_sign_receipt(si, signer, key, other, flags);
		if (!srcms)
			goto end;
		CMS_ContentInfo_free(cms);
		cms = srcms;
		}
	else if (operation & SMIME_SIGNERS)
		{
		int i;
		/* If detached data content we enable streaming if
		 * S/MIME output format.
		 */
		if (operation == SMIME_SIGN)
			{
				
			if (flags & CMS_DETACHED)
				{
				if (outformat == FORMAT_SMIME)
					flags |= CMS_STREAM;
				}
			flags |= CMS_PARTIAL;
			cms = CMS_sign(NULL, NULL, other, in, flags);
			if (!cms)
				goto end;
			if (econtent_type)
				CMS_set1_eContentType(cms, econtent_type);

			if (rr_to)
				{
				rr = make_receipt_request(rr_to, rr_allorfirst,
								rr_from);
				if (!rr)
					{
					BIO_puts(bio_err,
				"Signed Receipt Request Creation Error\n");
					goto end;
					}
				}
			}
		else
			flags |= CMS_REUSE_DIGEST;
		for (i = 0; i < sk_num(sksigners); i++)
			{
			CMS_SignerInfo *si;
			signerfile = sk_value(sksigners, i);
			keyfile = sk_value(skkeys, i);
			signer = load_cert(bio_err, signerfile,FORMAT_PEM, NULL,
					e, "signer certificate");
			if (!signer)
				goto end;
			key = load_key(bio_err, keyfile, keyform, 0, passin, e,
			       "signing key file");
			if (!key)
				goto end;
			si = CMS_add1_signer(cms, signer, key, sign_md, flags);
			if (!si)
				goto end;
			if (rr && !CMS_add1_ReceiptRequest(si, rr))
				goto end;
			X509_free(signer);
			signer = NULL;
			EVP_PKEY_free(key);
			key = NULL;
			}
		/* If not streaming or resigning finalize structure */
		if ((operation == SMIME_SIGN) && !(flags & CMS_STREAM))
			{
			if (!CMS_final(cms, in, NULL, flags))
				goto end;
			}
		}

	if (!cms)
		{
		BIO_printf(bio_err, "Error creating CMS structure\n");
		goto end;
		}

	ret = 4;
	if (operation == SMIME_DECRYPT)
		{

		if (secret_key)
			{
			if (!CMS_decrypt_set1_key(cms,
						secret_key, secret_keylen,
						secret_keyid, secret_keyidlen))
				{
				BIO_puts(bio_err,
					"Error decrypting CMS using secret key\n");
				goto end;
				}
			}

		if (key)
			{
			if (!CMS_decrypt_set1_pkey(cms, key, recip))
				{
				BIO_puts(bio_err,
					"Error decrypting CMS using private key\n");
				goto end;
				}
			}

		if (!CMS_decrypt(cms, NULL, NULL, indata, out, flags))
			{
			BIO_printf(bio_err, "Error decrypting CMS structure\n");
			goto end;
			}
		}
	else if (operation == SMIME_DATAOUT)
		{
		if (!CMS_data(cms, out, flags))
			goto end;
		}
	else if (operation == SMIME_UNCOMPRESS)
		{
		if (!CMS_uncompress(cms, indata, out, flags))
			goto end;
		}
	else if (operation == SMIME_DIGEST_VERIFY)
		{
		if (CMS_digest_verify(cms, indata, out, flags) > 0)
			BIO_printf(bio_err, "Verification successful\n");
		else