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Diffstat (limited to '')
| -rw-r--r-- | crypto/src/asn1/x509/X509Extensions.cs | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/crypto/src/asn1/x509/X509Extensions.cs b/crypto/src/asn1/x509/X509Extensions.cs index 2893f8b79..193ac8188 100644 --- a/crypto/src/asn1/x509/X509Extensions.cs +++ b/crypto/src/asn1/x509/X509Extensions.cs @@ -220,6 +220,21 @@ namespace Org.BouncyCastle.Asn1.X509 throw new ArgumentException("unknown object in factory: " + Platform.GetTypeName(obj), nameof(obj)); } + public static X509Extensions GetOptional(Asn1Encodable element) + { + if (element == null) + throw new ArgumentNullException(nameof(element)); + + if (element is X509Extensions existing) + return existing; + + Asn1Sequence asn1Sequence = Asn1Sequence.GetOptional(element); + if (asn1Sequence != null) + return new X509Extensions(asn1Sequence); + + return null; + } + /** * Constructor from Asn1Sequence. * |