stella-ops.org/git.stella-ops.org
1
0
Fork 0
Code Issues Pull Requests Actions 2 Releases Wiki Activity

search and ai stabilization work, localization stablized.

Browse Source
This commit is contained in:
master
2026-02-24 23:29:36 +02:00
parent 4f947a8b61
commit b07d27772e
766 changed files with 55299 additions and 3221 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
src/__Libraries/StellaOps.Cryptography/GostSignatureEncoding.cs
View File

@@ -3,6 +3,7 @@ using Org.BouncyCastle.Asn1;
using Org.BouncyCastle.Math;
using System;
using System.Security.Cryptography;
using static StellaOps.Localization.T;
namespace StellaOps.Cryptography;
@@ -41,13 +42,13 @@ public static class GostSignatureEncoding
{
if (!IsDer(der))
{
throw new CryptographicException("Signature is not DER encoded.");
throw new CryptographicException(_t("crypto.gost.not_der"));
}
var sequence = Asn1Sequence.GetInstance(Asn1Object.FromByteArray(der.ToArray()));
if (sequence.Count != 2)
{
throw new CryptographicException("Invalid DER structure for GOST signature.");
throw new CryptographicException(_t("crypto.gost.invalid_der"));
}
var r = NormalizeCoordinate(((DerInteger)sequence[0]).PositiveValue.ToByteArrayUnsigned(), coordinateLength);
@@ -63,7 +64,7 @@ public static class GostSignatureEncoding
{
if (raw.Length != coordinateLength * 2)
{
throw new CryptographicException($"Raw GOST signature must be {coordinateLength * 2} bytes.");
throw new CryptographicException(_t("crypto.gost.raw_length", coordinateLength * 2));
}
var s = raw[..coordinateLength].ToArray();
@@ -83,7 +84,7 @@ public static class GostSignatureEncoding
var sequence = Asn1Sequence.GetInstance(Asn1Object.FromByteArray(signature.ToArray()));
if (sequence.Count != 2)
{
throw new CryptographicException("Invalid DER structure for GOST signature.");
throw new CryptographicException(_t("crypto.gost.invalid_der"));
}
return (((DerInteger)sequence[0]).PositiveValue, ((DerInteger)sequence[1]).PositiveValue);
@@ -98,7 +99,7 @@ public static class GostSignatureEncoding
return (new BigInteger(1, r), new BigInteger(1, s));
}
throw new CryptographicException("Signature payload is neither DER nor raw GOST format.");
throw new CryptographicException(_t("crypto.gost.neither_format"));
}
private static byte[] NormalizeCoordinate(ReadOnlySpan<byte> value, int coordinateLength)
@@ -106,7 +107,7 @@ public static class GostSignatureEncoding
var trimmed = TrimLeadingZeros(value);
if (trimmed.Length > coordinateLength)
{
throw new CryptographicException("Coordinate exceeds expected length.");
throw new CryptographicException(_t("crypto.gost.coordinate_overflow"));
}
var output = new byte[coordinateLength];