using System;
using System.Globalization;
using System.Text;

namespace Mono.Security.X509.Extensions
{
	// Token: 0x020000B2 RID: 178
	internal class SubjectKeyIdentifierExtension : X509Extension
	{
		// Token: 0x060009A9 RID: 2473 RVA: 0x00027E70 File Offset: 0x00026070
		public SubjectKeyIdentifierExtension()
		{
			this.extnOid = "2.5.29.14";
		}

		// Token: 0x060009AA RID: 2474 RVA: 0x00027E84 File Offset: 0x00026084
		public SubjectKeyIdentifierExtension(ASN1 asn1)
			: base(asn1)
		{
		}

		// Token: 0x060009AB RID: 2475 RVA: 0x00027E90 File Offset: 0x00026090
		public SubjectKeyIdentifierExtension(X509Extension extension)
			: base(extension)
		{
		}

		// Token: 0x060009AC RID: 2476 RVA: 0x00027E9C File Offset: 0x0002609C
		protected override void Decode()
		{
			ASN1 asn = new ASN1(this.extnValue.Value);
			if (asn.Tag != 4)
			{
				throw new ArgumentException("Invalid SubjectKeyIdentifier extension");
			}
			this.ski = asn.Value;
		}

		// Token: 0x1700011B RID: 283
		// (get) Token: 0x060009AD RID: 2477 RVA: 0x00027EE0 File Offset: 0x000260E0
		public override string Name
		{
			get
			{
				return "Subject Key Identifier";
			}
		}

		// Token: 0x1700011C RID: 284
		// (get) Token: 0x060009AE RID: 2478 RVA: 0x00027EE8 File Offset: 0x000260E8
		public byte[] Identifier
		{
			get
			{
				if (this.ski == null)
				{
					return null;
				}
				return (byte[])this.ski.Clone();
			}
		}

		// Token: 0x060009AF RID: 2479 RVA: 0x00027F08 File Offset: 0x00026108
		public override string ToString()
		{
			if (this.ski == null)
			{
				return null;
			}
			StringBuilder stringBuilder = new StringBuilder();
			for (int i = 0; i < this.ski.Length; i++)
			{
				stringBuilder.Append(this.ski[i].ToString("X2", CultureInfo.InvariantCulture));
				if (i % 2 == 1)
				{
					stringBuilder.Append(" ");
				}
			}
			return stringBuilder.ToString();
		}

		// Token: 0x04000239 RID: 569
		private byte[] ski;
	}
}