using System; namespace Org.BouncyCastle.Asn1 { internal class PrimitiveDerEncodingSuffixed : DerEncoding { private readonly byte[] m_contentsOctets; private readonly byte m_contentsSuffix; internal PrimitiveDerEncodingSuffixed(int tagClass, int tagNo, byte[] contentsOctets, byte contentsSuffix) : base(tagClass, tagNo) { m_contentsOctets = contentsOctets; m_contentsSuffix = contentsSuffix; } protected internal override int CompareLengthAndContents(DerEncoding other) { PrimitiveDerEncodingSuffixed primitiveDerEncodingSuffixed = other as PrimitiveDerEncodingSuffixed; if (primitiveDerEncodingSuffixed != null) return CompareSuffixed(m_contentsOctets, m_contentsSuffix, primitiveDerEncodingSuffixed.m_contentsOctets, primitiveDerEncodingSuffixed.m_contentsSuffix); PrimitiveDerEncoding primitiveDerEncoding = other as PrimitiveDerEncoding; if (primitiveDerEncoding != null) { int num = primitiveDerEncoding.m_contentsOctets.Length; if (num == 0) return m_contentsOctets.Length; return CompareSuffixed(m_contentsOctets, m_contentsSuffix, primitiveDerEncoding.m_contentsOctets, primitiveDerEncoding.m_contentsOctets[num - 1]); } throw new InvalidOperationException(); } public override void Encode(Asn1OutputStream asn1Out) { asn1Out.WriteIdentifier(m_tagClass, m_tagNo); asn1Out.WriteDL(m_contentsOctets.Length); asn1Out.Write(m_contentsOctets, 0, m_contentsOctets.Length - 1); asn1Out.WriteByte(m_contentsSuffix); } public override int GetLength() { return Asn1OutputStream.GetLengthOfEncodingDL(m_tagNo, m_contentsOctets.Length); } private static int CompareSuffixed(byte[] octetsA, byte suffixA, byte[] octetsB, byte suffixB) { int num = octetsA.Length; if (num != octetsB.Length) return num - octetsB.Length; int num2 = num - 1; for (int i = 0; i < num2; i++) { byte b = octetsA[i]; byte b2 = octetsB[i]; if (b != b2) return b - b2; } return suffixA - suffixB; } } }