Digitally Signing a XML Document (using SHA1+RSA or SHA1+DSA)
Adam Tauno Williams
awilliam at whitemice.org
Mon Dec 27 20:06:00 EST 2010
On Tue, 2010-12-28 at 03:25 +0530, Anurag Chourasia wrote:
> 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?
<http://stuvel.eu/rsa> Never used it though.
> 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>
Is this any kind of standard or just something someone made up? Is
there a namespace for the document?
It seems quite odd that the document contains a *private* key.
If all you need to do is parse to document to retrieve the values that
seems straight-forward enough.
> 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.
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