Duplicating a value with a maliciously edited file should be virtually impossible. No need to apologize! The post was lacking details and I apologize for that. GPG Suite seems to be the one for mac ...
For a general-purpose key pair, choose DSA/ElGamal (option #1). This actually gives you two sets of keys: a DSA key pair that will be used by gpg for signing/verifying and an ElGamal pair that gpg ...
Encryption scares a lot of people – me included – because it’s based on really complicated mathematics. Thankfully, the state of encryption software has advanced sufficiently in the last couple of ...
GnuPG, the open replacement for PGP, is an excellent tool to manage cryptographic signatures to files or e-mails for validity and integrity, as well as a tool to encrypt and decrypt sensitive files.