public CompressedDataParser(
			Asn1SequenceParser seq)
		{
			this._version = (DerInteger)seq.ReadObject();
			this._compressionAlgorithm = AlgorithmIdentifier.GetInstance(seq.ReadObject().ToAsn1Object());
			this._encapContentInfo = new ContentInfoParser((Asn1SequenceParser)seq.ReadObject());
		}
Ejemplo n.º 2
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		public RsaesOaepParameters(
			Asn1Sequence seq)
		{
			hashAlgorithm = DefaultHashAlgorithm;
			maskGenAlgorithm = DefaultMaskGenFunction;
			pSourceAlgorithm = DefaultPSourceAlgorithm;

			for (int i = 0; i != seq.Count; i++)
			{
				Asn1TaggedObject o = (Asn1TaggedObject)seq[i];

				switch (o.TagNo)
				{
					case 0:
						hashAlgorithm = AlgorithmIdentifier.GetInstance(o, true);
						break;
					case 1:
						maskGenAlgorithm = AlgorithmIdentifier.GetInstance(o, true);
						break;
					case 2:
						pSourceAlgorithm = AlgorithmIdentifier.GetInstance(o, true);
						break;
					default:
						throw new ArgumentException("unknown tag");
				}
			}
		}
Ejemplo n.º 3
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		private EssCertIDv2(
			Asn1Sequence seq)
		{
			if (seq.Count > 3)
				throw new ArgumentException("Bad sequence size: " + seq.Count, "seq");

			int count = 0;

			if (seq[0] is Asn1OctetString)
			{
				// Default value
				this.hashAlgorithm = DefaultAlgID;
			}
			else
			{
				this.hashAlgorithm = AlgorithmIdentifier.GetInstance(seq[count++].ToAsn1Object());
			}

			this.certHash = Asn1OctetString.GetInstance(seq[count++].ToAsn1Object()).GetOctets();

			if (seq.Count > count)
			{
				this.issuerSerial = IssuerSerial.GetInstance(
					Asn1Sequence.GetInstance(seq[count].ToAsn1Object()));
			}
		}
		public CmsEnvelopedDataParser(
			Stream envelopedData)
			: base(envelopedData)
		{
			this._attrNotRead = true;
			this.envelopedData = new EnvelopedDataParser(
				(Asn1SequenceParser)this.contentInfo.GetContent(Asn1Tags.Sequence));

			// TODO Validate version?
			//DerInteger version = this.envelopedData.Version;

			//
			// read the recipients
			//
			Asn1Set recipientInfos = Asn1Set.GetInstance(this.envelopedData.GetRecipientInfos().ToAsn1Object());

			//
			// read the encrypted content info
			//
			EncryptedContentInfoParser encInfo = this.envelopedData.GetEncryptedContentInfo();
			this._encAlg = encInfo.ContentEncryptionAlgorithm;
			ICmsReadable readable = new CmsProcessableInputStream(
				((Asn1OctetStringParser)encInfo.GetEncryptedContent(Asn1Tags.OctetString)).GetOctetStream());
			CmsSecureReadable secureReadable = new CmsEnvelopedHelper.CmsEnvelopedSecureReadable(
				this._encAlg, readable);

			//
			// build the RecipientInformationStore
			//
			this.recipientInfoStore = CmsEnvelopedHelper.BuildRecipientInformationStore(
				recipientInfos, secureReadable);
		}
		public RecipientInfo Generate(KeyParameter contentEncryptionKey, SecureRandom random)
		{
			byte[] keyBytes = contentEncryptionKey.GetKey();

			string rfc3211WrapperName = Helper.GetRfc3211WrapperName(keyEncryptionKeyOID);
			IWrapper keyWrapper = Helper.CreateWrapper(rfc3211WrapperName);

			// Note: In Java build, the IV is automatically generated in JCE layer
			int ivLength = rfc3211WrapperName.StartsWith("DESEDE") ? 8 : 16;
			byte[] iv = new byte[ivLength];
			random.NextBytes(iv);

			ICipherParameters parameters = new ParametersWithIV(keyEncryptionKey, iv);
			keyWrapper.Init(true, new ParametersWithRandom(parameters, random));
        	Asn1OctetString encryptedKey = new DerOctetString(
				keyWrapper.Wrap(keyBytes, 0, keyBytes.Length));

			DerSequence seq = new DerSequence(
				new DerObjectIdentifier(keyEncryptionKeyOID),
				new DerOctetString(iv));

			AlgorithmIdentifier keyEncryptionAlgorithm = new AlgorithmIdentifier(
				PkcsObjectIdentifiers.IdAlgPwriKek, seq);

			return new RecipientInfo(new PasswordRecipientInfo(
				keyDerivationAlgorithm, keyEncryptionAlgorithm, encryptedKey));
		}
		private AttributeCertificateInfo(
            Asn1Sequence seq)
        {
			if (seq.Count < 7 || seq.Count > 9)
			{
				throw new ArgumentException("Bad sequence size: " + seq.Count);
			}

			this.version = DerInteger.GetInstance(seq[0]);
            this.holder = Holder.GetInstance(seq[1]);
            this.issuer = AttCertIssuer.GetInstance(seq[2]);
            this.signature = AlgorithmIdentifier.GetInstance(seq[3]);
            this.serialNumber = DerInteger.GetInstance(seq[4]);
            this.attrCertValidityPeriod = AttCertValidityPeriod.GetInstance(seq[5]);
            this.attributes = Asn1Sequence.GetInstance(seq[6]);

			for (int i = 7; i < seq.Count; i++)
            {
                Asn1Encodable obj = (Asn1Encodable) seq[i];

				if (obj is DerBitString)
                {
                    this.issuerUniqueID = DerBitString.GetInstance(seq[i]);
                }
                else if (obj is Asn1Sequence || obj is X509Extensions)
                {
                    this.extensions = X509Extensions.GetInstance(seq[i]);
                }
            }
        }
		public SubjectPublicKeyInfo(
            AlgorithmIdentifier	algID,
            byte[]				publicKey)
        {
            this.keyData = new DerBitString(publicKey);
            this.algID = algID;
        }
		public EncryptedContentInfoParser(
			Asn1SequenceParser seq)
		{
			_contentType = (DerObjectIdentifier)seq.ReadObject();
			_contentEncryptionAlgorithm = AlgorithmIdentifier.GetInstance(seq.ReadObject().ToAsn1Object());
			_encryptedContent = (Asn1TaggedObjectParser)seq.ReadObject();
		}
Ejemplo n.º 9
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		private PrivateKeyInfo(
            Asn1Sequence seq)
        {
            IEnumerator e = seq.GetEnumerator();

			e.MoveNext();
            BigInteger version = ((DerInteger) e.Current).Value;
            if (version.IntValue != 0)
            {
                throw new ArgumentException("wrong version for private key info");
            }

			e.MoveNext();
            algID = AlgorithmIdentifier.GetInstance(e.Current);

			try
            {
				e.MoveNext();
				Asn1OctetString data = (Asn1OctetString) e.Current;

				privKey = Asn1Object.FromByteArray(data.GetOctets());
            }
            catch (IOException)
            {
				throw new ArgumentException("Error recoverying private key from sequence");
            }

			if (e.MoveNext())
			{
				attributes = Asn1Set.GetInstance((Asn1TaggedObject) e.Current, false);
			}
		}
Ejemplo n.º 10
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		public RsassaPssParameters(
			Asn1Sequence seq)
		{
			hashAlgorithm = DefaultHashAlgorithm;
			maskGenAlgorithm = DefaultMaskGenFunction;
			saltLength = DefaultSaltLength;
			trailerField = DefaultTrailerField;

			for (int i = 0; i != seq.Count; i++)
			{
				Asn1TaggedObject o = (Asn1TaggedObject)seq[i];

				switch (o.TagNo)
				{
					case 0:
						hashAlgorithm = AlgorithmIdentifier.GetInstance(o, true);
						break;
					case 1:
						maskGenAlgorithm = AlgorithmIdentifier.GetInstance(o, true);
						break;
					case 2:
						saltLength = DerInteger.GetInstance(o, true);
						break;
					case 3:
						trailerField = DerInteger.GetInstance(o, true);
						break;
					default:
						throw new ArgumentException("unknown tag");
				}
			}
		}
Ejemplo n.º 11
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		private LdsSecurityObject(
			Asn1Sequence seq)
		{
			if (seq == null || seq.Count == 0)
				throw new ArgumentException("null or empty sequence passed.");

			IEnumerator e = seq.GetEnumerator();

			// version
			e.MoveNext();
			version = DerInteger.GetInstance(e.Current);
			// digestAlgorithmIdentifier
			e.MoveNext();
			digestAlgorithmIdentifier = AlgorithmIdentifier.GetInstance(e.Current);

			e.MoveNext();
			Asn1Sequence datagroupHashSeq = Asn1Sequence.GetInstance(e.Current);

			if (version.Value.Equals(BigInteger.One))
			{
				e.MoveNext();
				versionInfo = LdsVersionInfo.GetInstance(e.Current);
			}

			CheckDatagroupHashSeqSize(datagroupHashSeq.Count);

			datagroupHash = new DataGroupHash[datagroupHashSeq.Count];
			for (int i= 0; i< datagroupHashSeq.Count; i++)
			{
				datagroupHash[i] = DataGroupHash.GetInstance(datagroupHashSeq[i]);
			}
		}
Ejemplo n.º 12
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		/**
		 * The default version
		 */
		public RsassaPssParameters()
		{
			hashAlgorithm = DefaultHashAlgorithm;
			maskGenAlgorithm = DefaultMaskGenFunction;
			saltLength = DefaultSaltLength;
			trailerField = DefaultTrailerField;
		}
Ejemplo n.º 13
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		public MessageImprint(
			AlgorithmIdentifier	hashAlgorithm,
			byte[]				hashedMessage)
		{
			this.hashAlgorithm = hashAlgorithm;
			this.hashedMessage = hashedMessage;
		}
Ejemplo n.º 14
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		public DigestInfo(
            AlgorithmIdentifier	algID,
            byte[]				digest)
        {
            this.digest = digest;
            this.algID = algID;
        }
		public TimeStampRequest Generate(
			string		digestAlgorithmOid,
			byte[]		digest,
			BigInteger	nonce)
		{
			if (digestAlgorithmOid == null)
			{
				throw new ArgumentException("No digest algorithm specified");
			}

			DerObjectIdentifier digestAlgOid = new DerObjectIdentifier(digestAlgorithmOid);

			AlgorithmIdentifier algID = new AlgorithmIdentifier(digestAlgOid, DerNull.Instance);
			MessageImprint messageImprint = new MessageImprint(algID, digest);

			X509Extensions  ext = null;

			if (extOrdering.Count != 0)
			{
				ext = new X509Extensions(extOrdering, extensions);
			}

			DerInteger derNonce = nonce == null
				?	null
				:	new DerInteger(nonce);

			return new TimeStampRequest(
				new TimeStampReq(messageImprint, reqPolicy, derNonce, certReq, ext));
		}
Ejemplo n.º 16
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 /**
  * Creates a new PKMACValue.
  * @param aid CMPObjectIdentifiers.passwordBasedMAC, with PBMParameter
  * @param value MAC of the DER-encoded SubjectPublicKeyInfo
  */
 public PKMacValue(
     AlgorithmIdentifier algID,
     DerBitString        macValue)
 {
     this.algID = algID;
     this.macValue = macValue;
 }
		public static EncryptedPrivateKeyInfo CreateEncryptedPrivateKeyInfo(
            string			algorithm,
            char[]			passPhrase,
            byte[]			salt,
            int				iterationCount,
            PrivateKeyInfo	keyInfo)
        {
            if (!PbeUtilities.IsPbeAlgorithm(algorithm))
                throw new ArgumentException("attempt to use non-PBE algorithm with PBE EncryptedPrivateKeyInfo generation");

			IBufferedCipher cipher = PbeUtilities.CreateEngine(algorithm) as IBufferedCipher;

			if (cipher == null)
			{
				// TODO Throw exception?
			}

			Asn1Encodable parameters = PbeUtilities.GenerateAlgorithmParameters(
				algorithm, salt, iterationCount);

			ICipherParameters keyParameters = PbeUtilities.GenerateCipherParameters(
				algorithm, passPhrase, parameters);

			cipher.Init(true, keyParameters);

			byte[] keyBytes = keyInfo.GetEncoded();
			byte[] encoding = cipher.DoFinal(keyBytes);

			DerObjectIdentifier oid = PbeUtilities.GetObjectIdentifier(algorithm);
			AlgorithmIdentifier algID = new AlgorithmIdentifier(oid, parameters);

			return new EncryptedPrivateKeyInfo(algID, encoding);
        }
		internal RecipientInformation(
			AlgorithmIdentifier	keyEncAlg,
			CmsSecureReadable	secureReadable)
		{
			this.keyEncAlg = keyEncAlg;
			this.secureReadable = secureReadable;
		}
		public SubjectPublicKeyInfo(
            AlgorithmIdentifier	algID,
            Asn1Encodable		publicKey)
        {
            this.keyData = new DerBitString(publicKey);
            this.algID = algID;
        }
Ejemplo n.º 20
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		public OriginatorPublicKey(
            AlgorithmIdentifier algorithm,
            byte[]              publicKey)
        {
            this.algorithm = algorithm;
            this.publicKey = new DerBitString(publicKey);
        }
		public CmsAuthEnvelopedData(
			ContentInfo contentInfo)
		{
			this.contentInfo = contentInfo;

			AuthEnvelopedData authEnvData = AuthEnvelopedData.GetInstance(contentInfo.Content);

			this.originator = authEnvData.OriginatorInfo;

			//
	        // read the recipients
	        //
	        Asn1Set recipientInfos = authEnvData.RecipientInfos;

			//
			// read the auth-encrypted content info
			//
			EncryptedContentInfo authEncInfo = authEnvData.AuthEncryptedContentInfo;
			this.authEncAlg = authEncInfo.ContentEncryptionAlgorithm;
			CmsSecureReadable secureReadable = new AuthEnvelopedSecureReadable(this);

			//
			// build the RecipientInformationStore
			//
			this.recipientInfoStore = CmsEnvelopedHelper.BuildRecipientInformationStore(
				recipientInfos, secureReadable);

			// FIXME These need to be passed to the AEAD cipher as AAD (Additional Authenticated Data)
			this.authAttrs = authEnvData.AuthAttrs;
			this.mac = authEnvData.Mac.GetOctets();
			this.unauthAttrs = authEnvData.UnauthAttrs;
		}
		public CmsAuthenticatedData(
			ContentInfo contentInfo)
		{
			this.contentInfo = contentInfo;

			AuthenticatedData authData = AuthenticatedData.GetInstance(contentInfo.Content);

			//
			// read the recipients
			//
			Asn1Set recipientInfos = authData.RecipientInfos;

			this.macAlg = authData.MacAlgorithm;

			//
			// read the authenticated content info
			//
			ContentInfo encInfo = authData.EncapsulatedContentInfo;
			ICmsReadable readable = new CmsProcessableByteArray(
				Asn1OctetString.GetInstance(encInfo.Content).GetOctets());
			CmsSecureReadable secureReadable = new CmsEnvelopedHelper.CmsAuthenticatedSecureReadable(
				this.macAlg, readable);

			//
			// build the RecipientInformationStore
			//
			this.recipientInfoStore = CmsEnvelopedHelper.BuildRecipientInformationStore(
				recipientInfos, secureReadable);

			this.authAttrs = authData.AuthAttrs;
			this.mac = authData.Mac.GetOctets();
			this.unauthAttrs = authData.UnauthAttrs;
		}
		public EncryptedPrivateKeyInfo(
            AlgorithmIdentifier	algId,
            byte[]				encoding)
        {
            this.algId = algId;
            this.data = new DerOctetString(encoding);
        }
Ejemplo n.º 24
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 private PbmParameter(Asn1Sequence seq)
 {
     salt = Asn1OctetString.GetInstance(seq[0]);
     owf = AlgorithmIdentifier.GetInstance(seq[1]);
     iterationCount = DerInteger.GetInstance(seq[2]);
     mac = AlgorithmIdentifier.GetInstance(seq[3]);
 }
        /**
        * Generate an object that contains an CMS Compressed Data
        */

        public CmsCompressedData Generate(CmsProcessable content, string compressionOid)
        {
            AlgorithmIdentifier comAlgId;
            Asn1OctetString comOcts;

            try
            {
                using (var bOut = new MemoryStream())
                {
                    using (var zOut = new ZOutputStream(bOut, JZlib.Z_DEFAULT_COMPRESSION))
                    {
                        content.Write(zOut);
                    }

                    comAlgId = new AlgorithmIdentifier(new DerObjectIdentifier(compressionOid));
                    comOcts = new BerOctetString(bOut.ToArray());
                }
            }
            catch (IOException e)
            {
                throw new CmsException("exception encoding data.", e);
            }

            var comContent = new ContentInfo(CmsObjectIdentifiers.Data, comOcts);
            var contentInfo = new ContentInfo(CmsObjectIdentifiers.CompressedData, new CompressedData(comAlgId, comContent));

            return new CmsCompressedData(contentInfo);
        }
Ejemplo n.º 26
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        public AuthenticatedData(
            OriginatorInfo		originatorInfo,
            Asn1Set				recipientInfos,
            AlgorithmIdentifier	macAlgorithm,
            AlgorithmIdentifier	digestAlgorithm,
            ContentInfo			encapsulatedContent,
            Asn1Set				authAttrs,
            Asn1OctetString		mac,
            Asn1Set				unauthAttrs)
        {
            if (digestAlgorithm != null || authAttrs != null)
            {
                if (digestAlgorithm == null || authAttrs == null)
                {
                    throw new ArgumentException("digestAlgorithm and authAttrs must be set together");
                }
            }

            version = new DerInteger(CalculateVersion(originatorInfo));

            this.originatorInfo = originatorInfo;
            this.macAlgorithm = macAlgorithm;
            this.digestAlgorithm = digestAlgorithm;
            this.recipientInfos = recipientInfos;
            this.encapsulatedContentInfo = encapsulatedContent;
            this.authAttrs = authAttrs;
            this.mac = mac;
            this.unauthAttrs = unauthAttrs;
        }
Ejemplo n.º 27
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		public CompressedData(
            Asn1Sequence seq)
        {
            this.version = (DerInteger) seq[0];
            this.compressionAlgorithm = AlgorithmIdentifier.GetInstance(seq[1]);
            this.encapContentInfo = ContentInfo.GetInstance(seq[2]);
        }
Ejemplo n.º 28
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        public CmsEnvelopedData(
            ContentInfo contentInfo)
        {
            this.contentInfo = contentInfo;

			EnvelopedData envData = EnvelopedData.GetInstance(contentInfo.Content);

			//
			// read the recipients
			//
			Asn1Set recipientInfos = envData.RecipientInfos;

			//
			// read the encrypted content info
			//
			EncryptedContentInfo encInfo = envData.EncryptedContentInfo;
			this.encAlg = encInfo.ContentEncryptionAlgorithm;
			ICmsReadable readable = new CmsProcessableByteArray(encInfo.EncryptedContent.GetOctets());
			CmsSecureReadable secureReadable = new CmsEnvelopedHelper.CmsEnvelopedSecureReadable(
				this.encAlg, readable);

			//
			// build the RecipientInformationStore
			//
			this.recipientInfoStore = CmsEnvelopedHelper.BuildRecipientInformationStore(
				recipientInfos, secureReadable);

			this.unprotectedAttributes = envData.UnprotectedAttrs;
        }
Ejemplo n.º 29
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        private EncryptedValue(Asn1Sequence seq)
        {
            int index = 0;
            while (seq[index] is Asn1TaggedObject)
            {
                Asn1TaggedObject tObj = (Asn1TaggedObject)seq[index];

                switch (tObj.TagNo)
                {
                    case 0:
                        intendedAlg = AlgorithmIdentifier.GetInstance(tObj, false);
                        break;
                    case 1:
                        symmAlg = AlgorithmIdentifier.GetInstance(tObj, false);
                        break;
                    case 2:
                        encSymmKey = DerBitString.GetInstance(tObj, false);
                        break;
                    case 3:
                        keyAlg = AlgorithmIdentifier.GetInstance(tObj, false);
                        break;
                    case 4:
                        valueHint = Asn1OctetString.GetInstance(tObj, false);
                        break;
                }
                ++index;
            }

            encValue = DerBitString.GetInstance(seq[index]);
        }
		public CmsAuthenticatedDataParser(
			Stream envelopedData)
			: base(envelopedData)
		{
			this.authAttrNotRead = true;
			this.authData = new AuthenticatedDataParser(
				(Asn1SequenceParser)contentInfo.GetContent(Asn1Tags.Sequence));

			// TODO Validate version?
			//DerInteger version = this.authData.getVersion();

			//
			// read the recipients
			//
			Asn1Set recipientInfos = Asn1Set.GetInstance(authData.GetRecipientInfos().ToAsn1Object());

			this.macAlg = authData.GetMacAlgorithm();

			//
			// read the authenticated content info
			//
			ContentInfoParser data = authData.GetEnapsulatedContentInfo();
			ICmsReadable readable = new CmsProcessableInputStream(
				((Asn1OctetStringParser)data.GetContent(Asn1Tags.OctetString)).GetOctetStream());
			CmsSecureReadable secureReadable = new CmsEnvelopedHelper.CmsAuthenticatedSecureReadable(
				this.macAlg, readable);

			//
			// build the RecipientInformationStore
			//
			this._recipientInfoStore = CmsEnvelopedHelper.BuildRecipientInformationStore(
				recipientInfos, secureReadable);
		}