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

2010-12-30 Thread Jorgen Grahn
On Tue, 2010-12-28, Adam Tauno Williams wrote:
 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
...

 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
   M1bMd8XkGml7gkqV9kOoVSk0uvA1CqC7DvqD
 +OZ47p/iLfWsMtVCfuxiKW7rkLy836qcQac8Hzbi38DfJ8y7UbQ==/M 
   EAw==/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.

[The original posting by Anurag Chourasia did not reach my news server.]

I'd simply invoke GnuPG. A simple example:

% gpg --sign --armor foo
You need a passphrase to unlock the secret key for
user: ...

% head foo.asc  
-BEGIN PGP MESSAGE-
Version: GnuPG v1.4.9 (GNU/Linux)

owGs+TuuLdGWRQu9B1hTwsAHaRUhPjN+DjVAWBRgxs+nGAgHA58aUA88RHVw6K3N
2PfefJn5Mg2ko6N99lkrYn7G6KN//m//6//l//C/+N/8X/5P/6//+//u//r/+P/+
...

The result isn't XML, but it *is* a standardized file format readable
by anyone. That's worth a lot.  You can also create a detached signature
and ship it together with the original file, or skip the '--armor' and
get a binary signed file.

If you really *do* have a requirement to make the result XML-like and
incompatible with anything else, I'm afraid you're on your own, and
will have a lot of extra work testing and making sure it's all secure.

/Jorgen

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

2010-12-30 Thread Stefan Behnel

Jorgen Grahn, 30.12.2010 10:41:

If you really *do* have a requirement to make the result XML-like and
incompatible with anything else, I'm afraid you're on your own


Well, there's always xmlsec if you need it.

http://www.aleksey.com/xmlsec/

Stefan

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

2010-12-28 Thread Anurag Chourasia
Dear all,

I am required to use the Private Key from that XML below to generate a
digital signature.

The public key can then be used to validate the generated signature.

http://stuvel.eu/rsa does not support PKCS#1 and hence I am required to look
for alternates.

Please let me know if there is something else out there that could help meet
my requirement.

Regards,
Anurag

On Tue, Dec 28, 2010 at 6:36 AM, Adam Tauno Williams awill...@whitemice.org
 wrote:

 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
M1bMd8XkGml7gkqV9kOoVSk0uvA1CqC7DvqD
  +OZ47p/iLfWsMtVCfuxiKW7rkLy836qcQac8Hzbi38DfJ8y7UbQ==/M
EAw==/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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Digitally Signing a XML Document (using SHA1+RSA or SHA1+DSA)

2010-12-27 Thread 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
  
M1bMd8XkGml7gkqV9kOoVSk0uvA1CqC7DvqD+OZ47p/iLfWsMtVCfuxiKW7rkLy836qcQac8Hzbi38DfJ8y7UbQ==/M
  EAw==/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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Re: Digitally Signing a XML Document (using SHA1+RSA or SHA1+DSA)

2010-12-27 Thread Adam Tauno Williams
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
   M1bMd8XkGml7gkqV9kOoVSk0uvA1CqC7DvqD
 +OZ47p/iLfWsMtVCfuxiKW7rkLy836qcQac8Hzbi38DfJ8y7UbQ==/M 
   EAw==/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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