[jira] [Created] (SANTUARIO-379) Signing XML with SHA1 with DSA throws exception when key is larger than 1024

["Marin Dzhigarov (JIRA)" <ji...@apache.org>]

Marin Dzhigarov created SANTUARIO-379:
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             Summary: Signing XML with SHA1 with DSA throws exception when key is larger than 1024
                 Key: SANTUARIO-379
                 URL: https://issues.apache.org/jira/browse/SANTUARIO-379
             Project: Santuario
          Issue Type: Bug
          Components: Java
    Affects Versions: Java 1.5.6
            Reporter: Marin Dzhigarov
            Assignee: Colm O hEigeartaigh


Getting the following exception when trying to sign xml document with SHA1 with DSA key that is 2048 bits long:

Exception in thread "main" java.lang.RuntimeException: A problem occured when trying to sign the document
	at XMLSignTest$XMLDSIGGenerator.signXMLDocument(XMLSignTest.java:113)
	at XMLSignTest.main(XMLSignTest.java:61)
Caused by: org.apache.xml.security.signature.XMLSignatureException: Invalid ASN.1 format of DSA signature
Original Exception was java.io.IOException: Invalid ASN.1 format of DSA signature
	at org.apache.xml.security.algorithms.implementations.SignatureDSA.engineSign(SignatureDSA.java:160)
	at org.apache.xml.security.algorithms.SignatureAlgorithm.sign(SignatureAlgorithm.java:173)
	at org.apache.xml.security.signature.XMLSignature.sign(XMLSignature.java:614)
	at XMLSignTest$XMLDSIGGenerator.signXMLDocument(XMLSignTest.java:109)
	... 1 more
Caused by: java.io.IOException: Invalid ASN.1 format of DSA signature
	at org.apache.xml.security.algorithms.implementations.SignatureDSA.convertASN1toXMLDSIG(SignatureDSA.java:284)
	at org.apache.xml.security.algorithms.implementations.SignatureDSA.engineSign(SignatureDSA.java:158)
	... 4 more

See attached eclipse demo project for reproducing, keystore and xml file:

https://drive.google.com/file/d/0B8qrjQTbDPd3Sld2bW5ncTlLQms/edit?usp=sharing



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