crypto/src/crypto/operators/CmsKeyTransRecipientInfoGenerator.cs


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using Org.BouncyCastle.Asn1.X509;
using Org.BouncyCastle.Cms;
using Org.BouncyCastle.Crypto;
using Org.BouncyCastle.Asn1;
using Org.BouncyCastle.X509;

namespace Org.BouncyCastle.Operators
{
    public class CmsKeyTransRecipientInfoGenerator: KeyTransRecipientInfoGenerator
    {
        private IKeyWrapper keyWrapper;

        public CmsKeyTransRecipientInfoGenerator(X509Certificate recipCert, IKeyWrapper keyWrapper): base(new Asn1.Cms.IssuerAndSerialNumber(recipCert.IssuerDN, new DerInteger(recipCert.SerialNumber)))
        {
            this.keyWrapper = keyWrapper;
        }

        public CmsKeyTransRecipientInfoGenerator(byte[] subjectKeyID, IKeyWrapper keyWrapper) : base(subjectKeyID)
        {
            this.keyWrapper = keyWrapper;
        }

        protected override AlgorithmIdentifier AlgorithmDetails
        {
            get
            {
                return (AlgorithmIdentifier)keyWrapper.AlgorithmDetails;
            }
        }

        protected override byte[] GenerateWrappedKey(Crypto.Parameters.KeyParameter contentKey)
        {
            return keyWrapper.Wrap(contentKey.GetKey()).Collect();
        }
    }
}