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| author | Peter Dettman <peter.dettman@bouncycastle.org> | 2023-04-20 18:40:56 +0700 |
|---|---|---|
| committer | Peter Dettman <peter.dettman@bouncycastle.org> | 2023-04-20 18:40:56 +0700 |
| commit | 758b05345c9d2f0b412f75435cb31231a7f70311 (patch) | |
| tree | 5600970e299bc813a44ee48d2e3c8ba8eca9572d /crypto/src/x509 | |
| parent | BigInteger construction from little-endian (diff) | |
| download | BouncyCastle.NET-ed25519-758b05345c9d2f0b412f75435cb31231a7f70311.tar.xz | |
Refactoring: reduced allocations
Diffstat (limited to 'crypto/src/x509')
| -rw-r--r-- | crypto/src/x509/SubjectPublicKeyInfoFactory.cs | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/crypto/src/x509/SubjectPublicKeyInfoFactory.cs b/crypto/src/x509/SubjectPublicKeyInfoFactory.cs index fc0492fe4..36facc3aa 100644 --- a/crypto/src/x509/SubjectPublicKeyInfoFactory.cs +++ b/crypto/src/x509/SubjectPublicKeyInfoFactory.cs @@ -174,7 +174,17 @@ namespace Org.BouncyCastle.X509 x962 = new X962Parameters(_key.PublicKeyParamSet); } - byte[] pubKey = _key.Q.GetEncoded(false); + var q = _key.Q; + +#if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER + int encodedLength = q.GetEncodedLength(false); + Span<byte> pubKey = encodedLength <= 512 + ? stackalloc byte[encodedLength] + : new byte[encodedLength]; + q.EncodeTo(false, pubKey); +#else + byte[] pubKey = q.GetEncoded(false); +#endif AlgorithmIdentifier algID = new AlgorithmIdentifier( X9ObjectIdentifiers.IdECPublicKey, x962.ToAsn1Object()); @@ -212,14 +222,22 @@ namespace Org.BouncyCastle.X509 { X448PublicKeyParameters key = (X448PublicKeyParameters)publicKey; +#if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER + return new SubjectPublicKeyInfo(new AlgorithmIdentifier(EdECObjectIdentifiers.id_X448), key.DataSpan); +#else return new SubjectPublicKeyInfo(new AlgorithmIdentifier(EdECObjectIdentifiers.id_X448), key.GetEncoded()); +#endif } if (publicKey is X25519PublicKeyParameters) { X25519PublicKeyParameters key = (X25519PublicKeyParameters)publicKey; +#if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER + return new SubjectPublicKeyInfo(new AlgorithmIdentifier(EdECObjectIdentifiers.id_X25519), key.DataSpan); +#else return new SubjectPublicKeyInfo(new AlgorithmIdentifier(EdECObjectIdentifiers.id_X25519), key.GetEncoded()); +#endif } if (publicKey is Ed448PublicKeyParameters) |