Hi,

 I'm implementing PDF signatures using iText + BouncyCastle
(a Java Cryptography API, www.bouncycastle.org).

 Up to the moment I have made a procedure to validate
detached PKCS#7 signatures (/Filter /Adobe.PPKLite /SubFilter
/adbe.pkcs7.detached).

 Also I have made a program to sign a document but, although I
could verify the signature with my procedure, it fails
with Acrobat and Acrobat Reader (vers. 5 and 6), with the error
message "SigDict /Contents illegal data".

 I have signed the documents with a X.509 v3 standard certificate
stored in a PKCS#12 file (it is not the autosigned certificate
generated by Acrobat).

Could someone please give me a hint what I need to do?

Thanks,

 Luis Pascual



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