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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
#pragma warning disable SA1028 // ignore whitespace warnings for generated code
using System;
using System.Collections.Generic;
using System.Formats.Asn1;
using System.Runtime.InteropServices;
namespace System.Security.Cryptography.Pkcs.Asn1
{
[StructLayout(LayoutKind.Sequential)]
internal partial struct SigningCertificateAsn
{
internal System.Security.Cryptography.Pkcs.Asn1.EssCertId[] Certs;
internal System.Security.Cryptography.Pkcs.Asn1.PolicyInformation[]? Policies;
internal readonly void Encode(AsnWriter writer)
{
Encode(writer, Asn1Tag.Sequence);
}
internal readonly void Encode(AsnWriter writer, Asn1Tag tag)
{
writer.PushSequence(tag);
writer.PushSequence();
for (int i = 0; i < Certs.Length; i++)
{
Certs[i].Encode(writer);
}
writer.PopSequence();
if (Policies != null)
{
writer.PushSequence();
for (int i = 0; i < Policies.Length; i++)
{
Policies[i].Encode(writer);
}
writer.PopSequence();
}
writer.PopSequence(tag);
}
internal static SigningCertificateAsn Decode(ReadOnlyMemory<byte> encoded, AsnEncodingRules ruleSet)
{
return Decode(Asn1Tag.Sequence, encoded, ruleSet);
}
internal static SigningCertificateAsn Decode(Asn1Tag expectedTag, ReadOnlyMemory<byte> encoded, AsnEncodingRules ruleSet)
{
try
{
AsnValueReader reader = new AsnValueReader(encoded.Span, ruleSet);
DecodeCore(ref reader, expectedTag, encoded, out SigningCertificateAsn decoded);
reader.ThrowIfNotEmpty();
return decoded;
}
catch (AsnContentException e)
{
throw new CryptographicException(SR.Cryptography_Der_Invalid_Encoding, e);
}
}
internal static void Decode(ref AsnValueReader reader, ReadOnlyMemory<byte> rebind, out SigningCertificateAsn decoded)
{
Decode(ref reader, Asn1Tag.Sequence, rebind, out decoded);
}
internal static void Decode(ref AsnValueReader reader, Asn1Tag expectedTag, ReadOnlyMemory<byte> rebind, out SigningCertificateAsn decoded)
{
try
{
DecodeCore(ref reader, expectedTag, rebind, out decoded);
}
catch (AsnContentException e)
{
throw new CryptographicException(SR.Cryptography_Der_Invalid_Encoding, e);
}
}
private static void DecodeCore(ref AsnValueReader reader, Asn1Tag expectedTag, ReadOnlyMemory<byte> rebind, out SigningCertificateAsn decoded)
{
decoded = default;
AsnValueReader sequenceReader = reader.ReadSequence(expectedTag);
AsnValueReader collectionReader;
// Decode SEQUENCE OF for Certs
{
collectionReader = sequenceReader.ReadSequence();
var tmpList = new List<System.Security.Cryptography.Pkcs.Asn1.EssCertId>();
System.Security.Cryptography.Pkcs.Asn1.EssCertId tmpItem;
while (collectionReader.HasData)
{
System.Security.Cryptography.Pkcs.Asn1.EssCertId.Decode(ref collectionReader, rebind, out tmpItem);
tmpList.Add(tmpItem);
}
decoded.Certs = tmpList.ToArray();
}
if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(Asn1Tag.Sequence))
{
// Decode SEQUENCE OF for Policies
{
collectionReader = sequenceReader.ReadSequence();
var tmpList = new List<System.Security.Cryptography.Pkcs.Asn1.PolicyInformation>();
System.Security.Cryptography.Pkcs.Asn1.PolicyInformation tmpItem;
while (collectionReader.HasData)
{
System.Security.Cryptography.Pkcs.Asn1.PolicyInformation.Decode(ref collectionReader, rebind, out tmpItem);
tmpList.Add(tmpItem);
}
decoded.Policies = tmpList.ToArray();
}
}
sequenceReader.ThrowIfNotEmpty();
}
}
}
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