I need some urgent assistance from your side regarding digital signature,
I am a bit confuse about this concept, i had covered the theory on the Digital Sign.
Now i need some real facts about digital signature , public and private key,
My First Confusion is:
Who will generate Public and private key in the application, i means if i will add a new user in the application then who and how the Public and the private key of that user will be generated.
What will be the length of the Public and the private key( in digits) i know the key will be generated of 512,1024 bits ,but what will be the human readable lenght on the Keys, whether the keys will be in Numeric form or in Alpha Numeric for or in Hexa Decimal form,
Third confusion is:
Can we change the public ,private key of the user , then how will be encrypt/decrypt the documents.
Will the change in the keys will change the digtal signature.
core difference between electronic and digital signature.
Please while answering all the above queries, keep one thing in mind that i am fully aware of SHA, RSa, DES, IDEA.
please do not send any link just send me the description of the Above Questions.