diff options
Diffstat (limited to 'crypto/src/math/ec/rfc8032/Ed25519.cs')
| -rw-r--r-- | crypto/src/math/ec/rfc8032/Ed25519.cs | 110 |
1 files changed, 47 insertions, 63 deletions
diff --git a/crypto/src/math/ec/rfc8032/Ed25519.cs b/crypto/src/math/ec/rfc8032/Ed25519.cs index cde61b621..d5b035734 100644 --- a/crypto/src/math/ec/rfc8032/Ed25519.cs +++ b/crypto/src/math/ec/rfc8032/Ed25519.cs @@ -442,13 +442,13 @@ namespace Org.BouncyCastle.Math.EC.Rfc8032 } #endif - private static void ExportPoint(ref PointAffine p, out PublicPoint publicPoint) + private static PublicPoint ExportPoint(ref PointAffine p) { int[] data = new int[F.Size * 2]; F.Copy(p.x, 0, data, 0); F.Copy(p.y, 0, data, F.Size); - publicPoint = new PublicPoint(data); + return new PublicPoint(data); } public static void GeneratePrivateKey(SecureRandom random, byte[] k) @@ -503,10 +503,10 @@ namespace Org.BouncyCastle.Math.EC.Rfc8032 } #endif - public static void GeneratePublicKey(byte[] sk, int skOff, out PublicPoint publicPoint) + public static PublicPoint GeneratePublicKey(byte[] sk, int skOff) { #if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER - GeneratePublicKey(sk.AsSpan(skOff), out publicPoint); + return GeneratePublicKey(sk.AsSpan(skOff)); #else IDigest d = CreateDigest(); byte[] h = new byte[64]; @@ -526,12 +526,12 @@ namespace Org.BouncyCastle.Math.EC.Rfc8032 if (0 == CheckPoint(ref q)) throw new InvalidOperationException(); - ExportPoint(ref q, out publicPoint); + return ExportPoint(ref q); #endif } #if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER - public static void GeneratePublicKey(ReadOnlySpan<byte> sk, out PublicPoint publicPoint) + public static PublicPoint GeneratePublicKey(ReadOnlySpan<byte> sk) { IDigest d = CreateDigest(); Span<byte> h = stackalloc byte[64]; @@ -551,7 +551,7 @@ namespace Org.BouncyCastle.Math.EC.Rfc8032 if (0 == CheckPoint(ref q)) throw new InvalidOperationException(); - ExportPoint(ref q, out publicPoint); + return ExportPoint(ref q); } #endif @@ -1865,52 +1865,44 @@ namespace Org.BouncyCastle.Math.EC.Rfc8032 } #endif - public static bool ValidatePublicKeyFull(byte[] pk, int pkOff, out PublicPoint publicPoint) + public static PublicPoint ValidatePublicKeyFullExport(byte[] pk, int pkOff) { #if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER - return ValidatePublicKeyFull(pk.AsSpan(pkOff), out publicPoint); + return ValidatePublicKeyFullExport(pk.AsSpan(pkOff)); #else byte[] A = Copy(pk, pkOff, PublicKeySize); - if (CheckPointFullVar(A)) - { - Init(out PointAffine pA); - if (DecodePointVar(A, false, ref pA)) - { - if (CheckPointOrderVar(ref pA)) - { - ExportPoint(ref pA, out publicPoint); - return true; - } - } - } + if (!CheckPointFullVar(A)) + return null; - publicPoint = null; - return false; + Init(out PointAffine pA); + if (!DecodePointVar(A, false, ref pA)) + return null; + + if (!CheckPointOrderVar(ref pA)) + return null; + + return ExportPoint(ref pA); #endif } #if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER - public static bool ValidatePublicKeyFull(ReadOnlySpan<byte> pk, out PublicPoint publicPoint) + public static PublicPoint ValidatePublicKeyFullExport(ReadOnlySpan<byte> pk) { Span<byte> A = stackalloc byte[PublicKeySize]; A.CopyFrom(pk); - if (CheckPointFullVar(A)) - { - Init(out PointAffine pA); - if (DecodePointVar(A, false, ref pA)) - { - if (CheckPointOrderVar(ref pA)) - { - ExportPoint(ref pA, out publicPoint); - return true; - } - } - } + if (!CheckPointFullVar(A)) + return null; - publicPoint = null; - return false; + Init(out PointAffine pA); + if (!DecodePointVar(A, false, ref pA)) + return null; + + if (!CheckPointOrderVar(ref pA)) + return null; + + return ExportPoint(ref pA); } #endif @@ -1943,46 +1935,38 @@ namespace Org.BouncyCastle.Math.EC.Rfc8032 } #endif - public static bool ValidatePublicKeyPartial(byte[] pk, int pkOff, out PublicPoint publicPoint) + public static PublicPoint ValidatePublicKeyPartialExport(byte[] pk, int pkOff) { #if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER - return ValidatePublicKeyPartial(pk.AsSpan(pkOff), out publicPoint); + return ValidatePublicKeyPartialExport(pk.AsSpan(pkOff)); #else byte[] A = Copy(pk, pkOff, PublicKeySize); - if (CheckPointFullVar(A)) - { - Init(out PointAffine pA); - if (DecodePointVar(A, false, ref pA)) - { - ExportPoint(ref pA, out publicPoint); - return true; - } - } + if (!CheckPointFullVar(A)) + return null; - publicPoint = null; - return false; + Init(out PointAffine pA); + if (!DecodePointVar(A, false, ref pA)) + return null; + + return ExportPoint(ref pA); #endif } #if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER - public static bool ValidatePublicKeyPartial(ReadOnlySpan<byte> pk, out PublicPoint publicPoint) + public static PublicPoint ValidatePublicKeyPartialExport(ReadOnlySpan<byte> pk) { Span<byte> A = stackalloc byte[PublicKeySize]; A.CopyFrom(pk); - if (CheckPointFullVar(A)) - { - Init(out PointAffine pA); - if (DecodePointVar(A, false, ref pA)) - { - ExportPoint(ref pA, out publicPoint); - return true; - } - } + if (!CheckPointFullVar(A)) + return null; - publicPoint = null; - return false; + Init(out PointAffine pA); + if (!DecodePointVar(A, false, ref pA)) + return null; + + return ExportPoint(ref pA); } #endif |