diff options
Diffstat (limited to 'crypto/src/x509/X509Utilities.cs')
| -rw-r--r-- | crypto/src/x509/X509Utilities.cs | 43 |
1 files changed, 42 insertions, 1 deletions
diff --git a/crypto/src/x509/X509Utilities.cs b/crypto/src/x509/X509Utilities.cs index 30ca0b080..bb9b7155f 100644 --- a/crypto/src/x509/X509Utilities.cs +++ b/crypto/src/x509/X509Utilities.cs @@ -9,6 +9,7 @@ using Org.BouncyCastle.Asn1.Pkcs; using Org.BouncyCastle.Asn1.TeleTrust; using Org.BouncyCastle.Asn1.X509; using Org.BouncyCastle.Asn1.X9; +using Org.BouncyCastle.Crypto; using Org.BouncyCastle.Utilities.Collections; namespace Org.BouncyCastle.X509 @@ -159,5 +160,45 @@ namespace Org.BouncyCastle.X509 { return CollectionUtilities.Proxy(m_algorithms.Keys); } - } + + internal static DerBitString GenerateSignature(ISignatureFactory signatureFactory, Asn1Encodable asn1Encodable) + { + var result = CalculateResult(signatureFactory.CreateCalculator(), asn1Encodable); + return new DerBitString(result.Collect()); + } + + internal static bool VerifySignature(IVerifierFactory verifierFactory, Asn1Encodable asn1Encodable, + DerBitString signature) + { + var result = CalculateResult(verifierFactory.CreateCalculator(), asn1Encodable); + return result.IsVerified(signature.GetOctets()); + } + + internal static Asn1TaggedObject TrimExtensions(int tagNo, X509Extensions exts) + { + Asn1Sequence extSeq = Asn1Sequence.GetInstance(exts.ToAsn1Object()); + Asn1EncodableVector extV = new Asn1EncodableVector(); + foreach (var extEntry in extSeq) + { + Asn1Sequence ext = Asn1Sequence.GetInstance(extEntry); + + if (!X509Extensions.AltSignatureValue.Equals(ext[0])) + { + extV.Add(ext); + } + } + + return new DerTaggedObject(true, tagNo, new DerSequence(extV)); + } + + private static TResult CalculateResult<TResult>(IStreamCalculator<TResult> streamCalculator, + Asn1Encodable asn1Encodable) + { + using (var stream = streamCalculator.Stream) + { + asn1Encodable.EncodeTo(stream, Asn1Encodable.Der); + } + return streamCalculator.GetResult(); + } + } } |