What is the equation behind a encrypted message. We send and receive emails everyday and today digital signatures are used to authenticate a document. Now that is the just for the validation part. If I password protect a pdf file and sent it then does it is easily traceable. Can an unethical stuff access my data. I found that there are number of attacks they use on the document to reveal the data. Does today's technology is really strong enough to work with the same. Thanks.
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