diff options
Diffstat (limited to 'crypto/src/asn1/DerInteger.cs')
| -rw-r--r-- | crypto/src/asn1/DerInteger.cs | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/crypto/src/asn1/DerInteger.cs b/crypto/src/asn1/DerInteger.cs index 5b240d281..ae14d2a9f 100644 --- a/crypto/src/asn1/DerInteger.cs +++ b/crypto/src/asn1/DerInteger.cs @@ -8,6 +8,14 @@ namespace Org.BouncyCastle.Asn1 public class DerInteger : Asn1Object { + public const string AllowUnsafeProperty = "Org.BouncyCastle.Asn1.AllowUnsafeInteger"; + + internal static bool AllowUnsafe() + { + string allowUnsafeValue = Platform.GetEnvironmentVariable(AllowUnsafeProperty); + return allowUnsafeValue != null && Platform.EqualsIgnoreCase("true", allowUnsafeValue); + } + private readonly byte[] bytes; /** @@ -72,13 +80,11 @@ namespace Org.BouncyCastle.Asn1 { if (bytes.Length > 1) { - if (bytes[0] == 0 && (bytes[1] & 0x80) == 0) - { - throw new ArgumentException("malformed integer"); - } - if (bytes[0] == (byte)0xff && (bytes[1] & 0x80) != 0) + if ((bytes[0] == 0 && (bytes[1] & 0x80) == 0) + || (bytes[0] == (byte)0xff && (bytes[1] & 0x80) != 0)) { - throw new ArgumentException("malformed integer"); + if (!AllowUnsafe()) + throw new ArgumentException("malformed integer"); } } this.bytes = Arrays.Clone(bytes); |