summary refs log tree commit diff
path: root/crypto/src/x509/X509V2AttributeCertificateGenerator.cs
blob: f49eea63fb347bb24f5a267041006e76604219f4 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
using System;
using System.Collections;

using Org.BouncyCastle.Asn1;
using Org.BouncyCastle.Asn1.X509;
using Org.BouncyCastle.Crypto;
using Org.BouncyCastle.Crypto.Operators;
using Org.BouncyCastle.Math;
using Org.BouncyCastle.Security;
using Org.BouncyCastle.Security.Certificates;
using Org.BouncyCastle.Utilities;

namespace Org.BouncyCastle.X509
{
	/// <remarks>Class to produce an X.509 Version 2 AttributeCertificate.</remarks>
	public class X509V2AttributeCertificateGenerator
	{
		private readonly X509ExtensionsGenerator extGenerator = new X509ExtensionsGenerator();

		private V2AttributeCertificateInfoGenerator	acInfoGen;
		private DerObjectIdentifier sigOID;
		private AlgorithmIdentifier sigAlgId;
		private string signatureAlgorithm;

		public X509V2AttributeCertificateGenerator()
		{
			acInfoGen = new V2AttributeCertificateInfoGenerator();
		}

		/// <summary>Reset the generator</summary>
		public void Reset()
		{
			acInfoGen = new V2AttributeCertificateInfoGenerator();
			extGenerator.Reset();
		}

		/// <summary>Set the Holder of this Attribute Certificate.</summary>
		public void SetHolder(
			AttributeCertificateHolder holder)
		{
			acInfoGen.SetHolder(holder.holder);
		}

		/// <summary>Set the issuer.</summary>
		public void SetIssuer(
			AttributeCertificateIssuer issuer)
		{
			acInfoGen.SetIssuer(AttCertIssuer.GetInstance(issuer.form));
		}

		/// <summary>Set the serial number for the certificate.</summary>
		public void SetSerialNumber(
			BigInteger serialNumber)
		{
			acInfoGen.SetSerialNumber(new DerInteger(serialNumber));
		}

		public void SetNotBefore(
			DateTime date)
		{
			acInfoGen.SetStartDate(new DerGeneralizedTime(date));
		}

		public void SetNotAfter(
			DateTime date)
		{
			acInfoGen.SetEndDate(new DerGeneralizedTime(date));
		}

        /// <summary>
        /// Set the signature algorithm. This can be either a name or an OID, names
        /// are treated as case insensitive.
        /// </summary>
        /// <param name="signatureAlgorithm">The algorithm name.</param>
        [Obsolete("Not needed if Generate used with an ISignatureFactory")]
        public void SetSignatureAlgorithm(
			string signatureAlgorithm)
		{
			this.signatureAlgorithm = signatureAlgorithm;

			try
			{
				sigOID = X509Utilities.GetAlgorithmOid(signatureAlgorithm);
			}
			catch (Exception)
			{
				throw new ArgumentException("Unknown signature type requested");
			}

			sigAlgId = X509Utilities.GetSigAlgID(sigOID, signatureAlgorithm);

			acInfoGen.SetSignature(sigAlgId);
		}

		/// <summary>Add an attribute.</summary>
		public void AddAttribute(
			X509Attribute attribute)
		{
			acInfoGen.AddAttribute(AttributeX509.GetInstance(attribute.ToAsn1Object()));
		}

		public void SetIssuerUniqueId(
			bool[] iui)
		{
			// TODO convert bool array to bit string
			//acInfoGen.SetIssuerUniqueID(iui);
			throw Platform.CreateNotImplementedException("SetIssuerUniqueId()");
		}

		/// <summary>Add a given extension field for the standard extensions tag.</summary>
		public void AddExtension(
			string			oid,
			bool			critical,
			Asn1Encodable	extensionValue)
		{
			extGenerator.AddExtension(new DerObjectIdentifier(oid), critical, extensionValue);
		}

		/// <summary>
		/// Add a given extension field for the standard extensions tag.
		/// The value parameter becomes the contents of the octet string associated
		/// with the extension.
		/// </summary>
		public void AddExtension(
			string	oid,
			bool	critical,
			byte[]	extensionValue)
		{
			extGenerator.AddExtension(new DerObjectIdentifier(oid), critical, extensionValue);
		}

        /// <summary>
        /// Generate an X509 certificate, based on the current issuer and subject.
        /// </summary>
        [Obsolete("Use Generate with an ISignatureFactory")]
        public IX509AttributeCertificate Generate(
			AsymmetricKeyParameter privateKey)
		{
			return Generate(privateKey, null);
		}

        /// <summary>
        /// Generate an X509 certificate, based on the current issuer and subject,
        /// using the supplied source of randomness, if required.
        /// </summary>
        [Obsolete("Use Generate with an ISignatureFactory")]
        public IX509AttributeCertificate Generate(
			AsymmetricKeyParameter	privateKey,
			SecureRandom			random)
        {
            return Generate(new Asn1SignatureFactory(signatureAlgorithm, privateKey, random));
        }

        /// <summary>
        /// Generate a new X.509 Attribute Certificate using the passed in SignatureCalculator.
        /// </summary>
        /// <param name="signatureCalculatorFactory">A signature calculator factory with the necessary algorithm details.</param>
        /// <returns>An IX509AttributeCertificate.</returns>
        public IX509AttributeCertificate Generate(ISignatureFactory signatureCalculatorFactory)
        {
            if (!extGenerator.IsEmpty)
			{
				acInfoGen.SetExtensions(extGenerator.Generate());
			}

            AlgorithmIdentifier sigAlgID = (AlgorithmIdentifier)signatureCalculatorFactory.AlgorithmDetails;

            acInfoGen.SetSignature(sigAlgID);

            AttributeCertificateInfo acInfo = acInfoGen.GenerateAttributeCertificateInfo();

            byte[] encoded = acInfo.GetDerEncoded();

            IStreamCalculator streamCalculator = signatureCalculatorFactory.CreateCalculator();

            streamCalculator.Stream.Write(encoded, 0, encoded.Length);

            Platform.Dispose(streamCalculator.Stream);

            try
			{
                DerBitString signatureValue = new DerBitString(((IBlockResult)streamCalculator.GetResult()).Collect());

                return new X509V2AttributeCertificate(new AttributeCertificate(acInfo, sigAlgID, signatureValue));
			}
			catch (Exception e)
			{
				// TODO
//				throw new ExtCertificateEncodingException("constructed invalid certificate", e);
				throw new CertificateEncodingException("constructed invalid certificate", e);
			}
		}

		/// <summary>
		/// Allows enumeration of the signature names supported by the generator.
		/// </summary>
		public IEnumerable SignatureAlgNames
		{
			get { return X509Utilities.GetAlgNames(); }
		}
	}
}