using Org.BouncyCastle.Asn1.X509; using System; namespace Org.BouncyCastle.Asn1.Pkcs { public class CertificationRequestInfo : Asn1Encodable { internal DerInteger version = new DerInteger(0); internal X509Name subject; internal SubjectPublicKeyInfo subjectPKInfo; internal Asn1Set attributes; public DerInteger Version => version; public X509Name Subject => subject; public SubjectPublicKeyInfo SubjectPublicKeyInfo => subjectPKInfo; public Asn1Set Attributes => attributes; public static CertificationRequestInfo GetInstance(object obj) { if (obj is CertificationRequestInfo) return (CertificationRequestInfo)obj; if (obj != null) return new CertificationRequestInfo(Asn1Sequence.GetInstance(obj)); return null; } public CertificationRequestInfo(X509Name subject, SubjectPublicKeyInfo pkInfo, Asn1Set attributes) { this.subject = subject; subjectPKInfo = pkInfo; this.attributes = attributes; ValidateAttributes(attributes); if (subject == null || version == null || subjectPKInfo == null) throw new ArgumentException("Not all mandatory fields set in CertificationRequestInfo generator."); } private CertificationRequestInfo(Asn1Sequence seq) { version = (DerInteger)seq[0]; subject = X509Name.GetInstance(seq[1]); subjectPKInfo = SubjectPublicKeyInfo.GetInstance(seq[2]); if (seq.Count > 3) { Asn1TaggedObject taggedObject = (Asn1TaggedObject)seq[3]; attributes = Asn1Set.GetInstance(taggedObject, false); } ValidateAttributes(attributes); if (subject == null || version == null || subjectPKInfo == null) throw new ArgumentException("Not all mandatory fields set in CertificationRequestInfo generator."); } public override Asn1Object ToAsn1Object() { Asn1EncodableVector asn1EncodableVector = new Asn1EncodableVector(version, subject, subjectPKInfo); asn1EncodableVector.AddOptionalTagged(false, 0, attributes); return new DerSequence(asn1EncodableVector); } private static void ValidateAttributes(Asn1Set attributes) { if (attributes != null) { foreach (Asn1Encodable attribute in attributes) { AttributePkcs instance = AttributePkcs.GetInstance(attribute.ToAsn1Object()); if (instance.AttrType.Equals(PkcsObjectIdentifiers.Pkcs9AtChallengePassword) && instance.AttrValues.Count != 1) throw new ArgumentException("challengePassword attribute must have one value"); } } } } }