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25 lines
1.1 KiB
25 lines
1.1 KiB
using System;
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using Org.BouncyCastle.Math;
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namespace Org.BouncyCastle.Crypto.Signers
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{
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/// <summary>
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/// An interface for different encoding formats for DSA signatures.
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/// </summary>
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public interface IDsaEncoding
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{
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/// <summary>Decode the (r, s) pair of a DSA signature.</summary>
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/// <param name="n">The order of the group that r, s belong to.</param>
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/// <param name="encoding">An encoding of the (r, s) pair of a DSA signature.</param>
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/// <returns>The (r, s) of a DSA signature, stored in an array of exactly two elements, r followed by s.</returns>
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BigInteger[] Decode(BigInteger n, byte[] encoding);
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/// <summary>Encode the (r, s) pair of a DSA signature.</summary>
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/// <param name="n">The order of the group that r, s belong to.</param>
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/// <param name="r">The r value of a DSA signature.</param>
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/// <param name="s">The s value of a DSA signature.</param>
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/// <returns>An encoding of the DSA signature given by the provided (r, s) pair.</returns>
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byte[] Encode(BigInteger n, BigInteger r, BigInteger s);
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}
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}
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