/// <summary>
/// This constructor allows primitive data to be passed for all
/// primitive elements. It will create new object wrappers for
/// the primitive data and set other elements to references to
/// the given objects
/// </summary>
public Gost28147_89_Parameters(byte[] iv_,
int[] encryptionParamSet_
)
: base()
{
iv = new Gost28147_89_IV(iv_);
encryptionParamSet = new Gost28147_89_ParamSet(encryptionParamSet_);
}
/// <summary>
/// This constructor sets all elements to references to the
/// given objects
/// </summary>
public Gost28147_89_Parameters(
Gost28147_89_IV iv_,
Gost28147_89_ParamSet encryptionParamSet_
)
: base()
{
iv = iv_;
encryptionParamSet = encryptionParamSet_;
}
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 iv
if (context.MatchElemTag(Asn1Tag.Universal, Asn1Tag.PRIM, 4, elemLen, false))
{
iv = new Gost28147_89_IV();
iv.Decode(buffer, true, elemLen.Value);
}
else
{
throw new Exception("Asn1MissingRequiredException (buffer)");
}
// decode encryptionParamSet
if (context.MatchElemTag(Asn1Tag.Universal, Asn1Tag.PRIM, 6, elemLen, false))
{
encryptionParamSet = new Gost28147_89_ParamSet();
encryptionParamSet.Decode(buffer, true, elemLen.Value);
}
else
{
throw new Exception("Asn1MissingRequiredException (buffer)");
}
}
public void Init()
{
iv = null;
encryptionParamSet = null;
}