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what is openssl

 
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please could anyone tell me "what is openssl"
at office in command prompt i tried with this command in command prompt

openssl genrsa -des3 1024>VeriSign.key ( it is working there)

but when at home in command prompt i use the same command its failing .
please could anyone explain to me
 
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Simple "what is ..." questions are best answered by Google, and much quicker than by opening a forum topic.

http://en.wikipedia.org/wiki/OpenSSL

What is the command you are entering supposed to do and what does "its failing" mean? Do you get an error message? If yes, then what is the error message? What does this question have to do with Java?
 
pavithra murthy
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D:\>openssl genrsa -des3 1024>VeriSign.key


'openssl' is not recognized as an internal or external command,
operable program or batch file.
this is the error message i am getting
 
Jesper de Jong
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That means you don't have the program named 'openssl' installed. You can probably get it here.
 
pavithra murthy
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actually i had written a java code to password protect and digital sign a pdf file . in this program i am using private key and export.cer (public key certificate) . now the problem with this code i am facing is the digital signature is valid in my system and if i mail it to my friend the signature signed by me is becoming invalid .

the above two was created using java keytool command in command prompt .

so i thought it is problem with the certificate since it was not trusted one . so i planned to take it from verisign and trying with the openssl command .
do i need to install something in my friends system so that the signature becomes valid .

please could you help me out
 
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