diff options
Diffstat (limited to 'crypto/src/openpgp')
| -rw-r--r-- | crypto/src/openpgp/PgpPublicKey.cs | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/crypto/src/openpgp/PgpPublicKey.cs b/crypto/src/openpgp/PgpPublicKey.cs index 6d5f35018..cdb8efd36 100644 --- a/crypto/src/openpgp/PgpPublicKey.cs +++ b/crypto/src/openpgp/PgpPublicKey.cs @@ -510,8 +510,10 @@ namespace Org.BouncyCastle.Bcpg.OpenPgp BigInteger encodedPoint = ecK.EncodedPoint; #if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER - int encodingLength = BigIntegers.GetUnsignedByteLength(encodedPoint); - Span<byte> encoding = stackalloc byte[encodingLength]; + int encodedLength = BigIntegers.GetUnsignedByteLength(encodedPoint); + Span<byte> encoding = encodedLength <= 512 + ? stackalloc byte[encodedLength] + : new byte[encodedLength]; BigIntegers.AsUnsignedByteArray(encodedPoint, encoding); ECPoint q = x9.Curve.DecodePoint(encoding); #else |