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A comment on How to bring down mission-critical GPS networks with $2,500. Parent comment

Re: How to bring down mission-critical GPS networks with $2,500 by ynniv on Friday December 14, 2012 @04:04PM (#4923323)
A receiver/decrypter only contains the public key, which can't be used to encrypt a new message. Perhaps you aren't familiar with asymmetric / public key cryptography?
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