/// <summary>
/// This constructor sets all elements to references to the
/// given objects
/// </summary>
public GostR3410_KeyWrap(
Gost28147_89_EncryptedKey encryptedKey_,
Gost28147_89_KeyWrapParameters encryptedParameters_
)
: base()
{
encryptedKey = encryptedKey_;
encryptedParameters = encryptedParameters_;
}
public override void Decode
(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
int llen = (explicitTagging) ?
MatchTag(buffer, Asn1Tag.Sequence) : implicitLength;
Init();
// decode SEQUENCE
Asn1BerDecodeContext context =
new Asn1BerDecodeContext(buffer, llen);
IntHolder elemLen = new IntHolder();
// decode encryptedKey
if (context.MatchElemTag(Asn1Tag.Universal, Asn1Tag.CONS, 16, elemLen, false))
{
encryptedKey = new Gost28147_89_EncryptedKey();
encryptedKey.Decode(buffer, true, elemLen.Value);
}
else
{
throw new Exception("Asn1MissingRequiredException");
}
// decode encryptedParameters
if (context.MatchElemTag(Asn1Tag.Universal, Asn1Tag.CONS, 16, elemLen, false))
{
encryptedParameters = new Gost28147_89_KeyWrapParameters();
encryptedParameters.Decode(buffer, true, elemLen.Value);
}
else
{
throw new Exception("Asn1MissingRequiredException");
}
}
public void Init()
{
encryptedKey = null;
encryptedParameters = null;
}
