unknown object in getInstance: org.bouncycastle.asn1.DERApplicationSpecific

[cgruber0]

Hi,

I use this library to read encrypted Emails. All emails are read without problems, except those from one client.

Said emails throw this exception:

net.markenwerk.utils.mail.smime.SmimeException: Malformed content. at net.markenwerk.utils.mail.smime.SmimeUtil.handledException(SmimeUtil.java:615) ~[utils-mail-smime-1.0.8.jar:na] at net.markenwerk.utils.mail.smime.SmimeUtil.decrypt(SmimeUtil.java:235) ~[utils-mail-smime-1.0.8.jar:na] at helpers.email.EmailFetcher.decryptMessageIfNecessary(EmailFetcher.java:293) [classes/:na] at helpers.email.EmailFetcher.processMessage(EmailFetcher.java:194) [classes/:na] at helpers.Converter.convertToPDF(Converter.java:59) [classes/:na] Caused by: org.bouncycastle.cms.CMSException: Malformed content. at org.bouncycastle.cms.CMSUtils.readContentInfo(Unknown Source) ~[bcpkix-jdk15on-1.56.jar:1.56.0.0] at org.bouncycastle.cms.CMSUtils.readContentInfo(Unknown Source) ~[bcpkix-jdk15on-1.56.jar:1.56.0.0] at org.bouncycastle.cms.CMSEnvelopedData.<init>(Unknown Source) ~[bcpkix-jdk15on-1.56.jar:1.56.0.0] at org.bouncycastle.mail.smime.SMIMEEnveloped.<init>(Unknown Source) ~[bcmail-jdk15on-1.56.jar:1.56.0.0] at net.markenwerk.utils.mail.smime.SmimeUtil.decrypt(SmimeUtil.java:225) ~[utils-mail-smime-1.0.8.jar:na] Caused by: java.lang.IllegalArgumentException: unknown object in getInstance: org.bouncycastle.asn1.DERApplicationSpecific at org.bouncycastle.asn1.ASN1Sequence.getInstance(Unknown Source) ~[bcprov-jdk15on-1.56.jar:1.56.0] at org.bouncycastle.asn1.cms.ContentInfo.getInstance(Unknown Source) ~[bcprov-jdk15on-1.56.jar:1.56.0] at org.bouncycastle.cms.CMSUtils.readContentInfo(Unknown Source) ~[bcpkix-jdk15on-1.56.jar:1.56.0.0] at org.bouncycastle.cms.CMSUtils.readContentInfo(Unknown Source) ~[bcpkix-jdk15on-1.56.jar:1.56.0.0] at org.bouncycastle.cms.CMSEnvelopedData.<init>(Unknown Source) ~[bcpkix-jdk15on-1.56.jar:1.56.0.0]

The emails are encrypted using RSA (2048) / AES (256). The email is decrypted in MS Outlook without problems.

I know the BouncyCastle library actually throws the exception (I already filed an issue there https://github.com/bcgit/bc-java/issues/462), but maybe somebody here can help too since I don't get any helpful answer there?

Thanks!