123 lines
2.7 KiB
C#
123 lines
2.7 KiB
C#
using System;
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using Org.BouncyCastle.Math;
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namespace Org.BouncyCastle.Asn1.IsisMtt.X509
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{
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/**
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* Monetary limit for transactions. The QcEuMonetaryLimit QC statement MUST be
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* used in new certificates in place of the extension/attribute MonetaryLimit
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* since January 1, 2004. For the sake of backward compatibility with
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* certificates already in use, components SHOULD support MonetaryLimit (as well
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* as QcEuLimitValue).
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* <p/>
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* Indicates a monetary limit within which the certificate holder is authorized
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* to act. (This value DOES NOT express a limit on the liability of the
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* certification authority).
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* <p/>
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* <pre>
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* MonetaryLimitSyntax ::= SEQUENCE
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* {
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* currency PrintableString (SIZE(3)),
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* amount INTEGER,
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* exponent INTEGER
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* }
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* </pre>
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* <p/>
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* currency must be the ISO code.
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* <p/>
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* value = amount<6E>10*exponent
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*/
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public class MonetaryLimit
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: Asn1Encodable
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{
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private readonly DerPrintableString currency;
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private readonly DerInteger amount;
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private readonly DerInteger exponent;
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public static MonetaryLimit GetInstance(
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object obj)
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{
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if (obj == null || obj is MonetaryLimit)
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{
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return (MonetaryLimit) obj;
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}
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if (obj is Asn1Sequence)
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{
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return new MonetaryLimit(Asn1Sequence.GetInstance(obj));
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}
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throw new ArgumentException("unknown object in factory: " + obj.GetType().Name, "obj");
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}
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private MonetaryLimit(
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Asn1Sequence seq)
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{
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if (seq.Count != 3)
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throw new ArgumentException("Bad sequence size: " + seq.Count);
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currency = DerPrintableString.GetInstance(seq[0]);
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amount = DerInteger.GetInstance(seq[1]);
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exponent = DerInteger.GetInstance(seq[2]);
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}
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/**
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* Constructor from a given details.
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* <p/>
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* <p/>
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* value = amount<6E>10^exponent
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*
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* @param currency The currency. Must be the ISO code.
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* @param amount The amount
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* @param exponent The exponent
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*/
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public MonetaryLimit(
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string currency,
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int amount,
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int exponent)
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{
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this.currency = new DerPrintableString(currency, true);
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this.amount = new DerInteger(amount);
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this.exponent = new DerInteger(exponent);
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}
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public virtual string Currency
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{
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get { return currency.GetString(); }
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}
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public virtual BigInteger Amount
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{
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get { return amount.Value; }
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}
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public virtual BigInteger Exponent
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{
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get { return exponent.Value; }
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}
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/**
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* Produce an object suitable for an Asn1OutputStream.
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* <p/>
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* Returns:
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* <p/>
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* <pre>
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* MonetaryLimitSyntax ::= SEQUENCE
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* {
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* currency PrintableString (SIZE(3)),
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* amount INTEGER,
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* exponent INTEGER
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* }
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* </pre>
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*
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* @return an Asn1Object
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*/
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public override Asn1Object ToAsn1Object()
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{
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return new DerSequence(currency, amount, exponent);
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}
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}
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}
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