diff options
Diffstat (limited to 'crypto/src/cms/SignerInformation.cs')
| -rw-r--r-- | crypto/src/cms/SignerInformation.cs | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/crypto/src/cms/SignerInformation.cs b/crypto/src/cms/SignerInformation.cs index f6cfd8602..2bb808ae2 100644 --- a/crypto/src/cms/SignerInformation.cs +++ b/crypto/src/cms/SignerInformation.cs @@ -319,11 +319,16 @@ namespace Org.BouncyCastle.Cms private bool DoVerify( AsymmetricKeyParameter key) { - string digestName = Helper.GetDigestAlgName(this.DigestAlgOid); - IDigest digest = Helper.GetDigestInstance(digestName); - - DerObjectIdentifier sigAlgOid = this.encryptionAlgorithm.Algorithm; + DerObjectIdentifier sigAlgOid = this.encryptionAlgorithm.Algorithm; Asn1Encodable sigParams = this.encryptionAlgorithm.Parameters; + string digestName = Helper.GetDigestAlgName(this.EncryptionAlgOid); + + if (digestName.Equals(sigAlgOid.Id)) + { + digestName = Helper.GetDigestAlgName(this.DigestAlgOid); + } + + IDigest digest = Helper.GetDigestInstance(digestName); ISigner sig; if (sigAlgOid.Equals(Asn1.Pkcs.PkcsObjectIdentifiers.IdRsassaPss)) @@ -374,10 +379,10 @@ namespace Org.BouncyCastle.Cms else { // TODO Probably too strong a check at the moment -// if (sigParams != null) -// throw new CmsException("unrecognised signature parameters provided"); + // if (sigParams != null) + // throw new CmsException("unrecognised signature parameters provided"); - string signatureName = digestName + "with" + Helper.GetEncryptionAlgName(this.EncryptionAlgOid); + string signatureName = digestName + "with" + Helper.GetEncryptionAlgName(this.EncryptionAlgOid); sig = Helper.GetSignatureInstance(signatureName); |