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| author | MW <megan@cryptoworkshop.com> | 2019-01-19 18:23:46 +1100 |
|---|---|---|
| committer | MW <megan@cryptoworkshop.com> | 2019-01-19 18:23:46 +1100 |
| commit | cf14c29752d40edd22fcdc20bddb5643ba32b1dd (patch) | |
| tree | 7c6e92a11fd4aad9a60b2241ff13fac54c602860 /crypto/src/cms/KeyTransRecipientInformation.cs | |
| parent | Updated to use nominated digtest. (diff) | |
| download | BouncyCastle.NET-ed25519-cf14c29752d40edd22fcdc20bddb5643ba32b1dd.tar.xz | |
Selecting digest.
Diffstat (limited to 'crypto/src/cms/KeyTransRecipientInformation.cs')
| -rw-r--r-- | crypto/src/cms/KeyTransRecipientInformation.cs | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/crypto/src/cms/KeyTransRecipientInformation.cs b/crypto/src/cms/KeyTransRecipientInformation.cs index 3b1ea7b5e..7d2f072b5 100644 --- a/crypto/src/cms/KeyTransRecipientInformation.cs +++ b/crypto/src/cms/KeyTransRecipientInformation.cs @@ -55,12 +55,18 @@ namespace Org.BouncyCastle.Cms } private string GetExchangeEncryptionAlgorithmName( - DerObjectIdentifier oid) + AlgorithmIdentifier algo) { - if (Asn1Pkcs.PkcsObjectIdentifiers.RsaEncryption.Equals(oid)) + DerObjectIdentifier oid = algo.Algorithm; + + if (Asn1Pkcs.PkcsObjectIdentifiers.RsaEncryption.Equals(oid)) { return "RSA//PKCS1Padding"; - } + } else if (Asn1Pkcs.PkcsObjectIdentifiers.IdRsaesOaep.Equals(oid)) + { + Asn1Pkcs.RsaesOaepParameters rsaParams = Asn1Pkcs.RsaesOaepParameters.GetInstance(algo.Parameters); + return "RSA//OAEPWITH"+DigestUtilities.GetAlgorithmName(rsaParams.HashAlgorithm.Algorithm)+"ANDMGF1Padding"; + } return oid.Id; } @@ -68,7 +74,7 @@ namespace Org.BouncyCastle.Cms internal KeyParameter UnwrapKey(ICipherParameters key) { byte[] encryptedKey = info.EncryptedKey.GetOctets(); - string keyExchangeAlgorithm = GetExchangeEncryptionAlgorithmName(keyEncAlg.Algorithm); + string keyExchangeAlgorithm = GetExchangeEncryptionAlgorithmName(keyEncAlg); try { |