CmsAuthenticatedData
using Org.BouncyCastle.Asn1;
using Org.BouncyCastle.Asn1.Cms;
using Org.BouncyCastle.Asn1.X509;
using Org.BouncyCastle.Utilities;
using System;
using System.IO;
namespace Org.BouncyCastle.Cms
{
public class CmsAuthenticatedData
{
private readonly ContentInfo m_contentInfo;
private readonly AuthenticatedData m_authenticatedData;
private readonly RecipientInformationStore m_recipientInfoStore;
public AuthenticatedData AuthenticatedData => m_authenticatedData;
public AlgorithmIdentifier MacAlgorithmID => m_authenticatedData.MacAlgorithm;
public string MacAlgOid => MacAlgorithmID.Algorithm.GetID();
public ContentInfo ContentInfo => m_contentInfo;
public CmsAuthenticatedData(byte[] authData)
: this(CmsUtilities.ReadContentInfo(authData))
{
}
public CmsAuthenticatedData(Stream authData)
: this(CmsUtilities.ReadContentInfo(authData))
{
}
public CmsAuthenticatedData(ContentInfo contentInfo)
{
if (contentInfo == null)
throw new ArgumentNullException("contentInfo");
m_contentInfo = contentInfo;
m_authenticatedData = AuthenticatedData.GetInstance(contentInfo.Content);
Asn1Set recipientInfos = m_authenticatedData.RecipientInfos;
CmsReadable readable = new CmsProcessableByteArray(Asn1OctetString.GetInstance(m_authenticatedData.EncapsulatedContentInfo.Content).GetOctets());
CmsSecureReadable secureReadable = new CmsEnvelopedHelper.CmsAuthenticatedSecureReadable(m_authenticatedData.MacAlgorithm, readable);
m_recipientInfoStore = CmsEnvelopedHelper.BuildRecipientInformationStore(recipientInfos, secureReadable);
}
public byte[] GetMac()
{
return Arrays.Clone(m_authenticatedData.Mac.GetOctets());
}
public RecipientInformationStore GetRecipientInfos()
{
return m_recipientInfoStore;
}
public Org.BouncyCastle.Asn1.Cms.AttributeTable GetAuthAttrs()
{
Asn1Set authAttrs = m_authenticatedData.AuthAttrs;
if (authAttrs == null)
return null;
return authAttrs.ToAttributeTable();
}
public Org.BouncyCastle.Asn1.Cms.AttributeTable GetUnauthAttrs()
{
Asn1Set unauthAttrs = m_authenticatedData.UnauthAttrs;
if (unauthAttrs == null)
return null;
return unauthAttrs.ToAttributeTable();
}
public byte[] GetEncoded()
{
return m_contentInfo.GetEncoded();
}
}
}