diff options
| -rw-r--r-- | crypto/src/asn1/Asn1TaggedObject.cs | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/crypto/src/asn1/Asn1TaggedObject.cs b/crypto/src/asn1/Asn1TaggedObject.cs index f2bf0cfe1..82fe0913c 100644 --- a/crypto/src/asn1/Asn1TaggedObject.cs +++ b/crypto/src/asn1/Asn1TaggedObject.cs @@ -47,6 +47,30 @@ namespace Org.BouncyCastle.Asn1 throw new ArgumentException("illegal object in GetInstance: " + Platform.GetTypeName(obj), "obj"); } + public static Asn1TaggedObject GetInstance(object obj, int tagClass) + { + if (obj == null) + throw new ArgumentNullException(nameof(obj)); + + Asn1TaggedObject taggedObject = GetInstance(obj); + if (tagClass != taggedObject.TagClass) + throw new ArgumentException("unexpected tag in GetInstance: " + Asn1Utilities.GetTagText(taggedObject)); + + return taggedObject; + } + + public static Asn1TaggedObject GetInstance(Object obj, int tagClass, int tagNo) + { + if (obj == null) + throw new ArgumentNullException(nameof(obj)); + + Asn1TaggedObject taggedObject = GetInstance(obj); + if (!taggedObject.HasTag(tagClass, tagNo)) + throw new ArgumentException("unexpected tag in GetInstance: " + Asn1Utilities.GetTagText(taggedObject)); + + return taggedObject; + } + public static Asn1TaggedObject GetInstance(Asn1TaggedObject taggedObject, bool declaredExplicit) { if (Asn1Tags.ContextSpecific != taggedObject.TagClass) |