Digitally Signing a XML Document (using SHA1+RSA or SHA1+DSA)

[Anurag Chourasia]

Hi All,

I have a requirement to digitally sign a XML Document using SHA1+RSA
or SHA1+DSA

Could someone give me a lead on a library that I can use to fulfill this
requirement?

The XML Document has values such as

<RSASK>-----BEGIN RSA PRIVATE KEY-----
MIIBOgIBAAJBANWzHfF5Bppe4JKlfZDqFUpNLrwNQqguw76g/jmeO6f4i31rDLVQ
n7sYilu65C8vN+qnEGnPB824t/A3yfMu1G0CAQMCQQCOd2lLpgRm6esMblO18WOG
3h8oCNcaydfUa1QmaX0apHlDFnI7UDXpYaHp2VL9gvtSJT5L3ZASMzxRPXJSvzcT
AiEA/16jQh18BAD4q3yk1gKw19I8OuJOYAxFYX9noCEFWUMCIQDWOiYfPtxK3A1s
AFARsDnnHTL4FbRPpiZ79vP+VgqojwIhAKo/F4Fo/VgApceobeQByzqMKCdBiZVd
g5ZU78AWA5DXAiEAjtFuv389hz1eSAA1YSAmmhN3UA54NRlu/U9NVDlccF8CIBkc
Z52oGxy/skwVwI5TBcB1YqXJTT47/6/hTAVMTwaA -----END RSA PRIVATE
KEY-----</RSASK>

<RSAPUBK>-----BEGIN PUBLIC KEY-----
MFowDQYJKoZIhvcNAQEBBQADSQAwRgJBANWzHfF5Bppe4JKlfZDqFUpNLrwNQqgu
w76g/jmeO6f4i31rDLVQn7sYilu65C8vN+qnEGnPB824t/A3yfMu1G0CAQM= -----END PUBLIC
KEY-----</RSAPUBK>

And the XML also has another node that has a Public Key with Modules and
Exponents etc that I apparently need to utilize.

<RSAPK>
  <M>1bMd8XkGml7gkqV9kOoVSk0uvA1CqC7DvqD+OZ47p/iLfWsMtVCfuxiKW7rkLy836qcQac8Hzbi38DfJ8y7UbQ==</M>
  <E>Aw==</E>
</RSAPK>

I am a little thin on this concept and expecting if you could guide me to a
library/documentation that I could utilize.

Thanks a lot for your help.

Regards,
Anurag
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