They lend their name to the Apennine peninsula which forms the major part of Italy. The mountains are mostly green and wooded, although one side of the highest peak, Corno Grande (2,912 m), is partially covered by the southernmost glacier in Europe.
Decryption is the process of converting ciphertext back to plaintext. To encrypt more than a small amount of data, symmetric encryption is used. A symmetric key is used during both the encryption and decryption processes.
The public key generated is unique to your computer, not the encrypted file. This information, in conjunction with an understanding of the file format used to store encrypted files meant that Kyrus Technologies were able to create an effective decryption tool. But there was one problem. Although there was a tool to decrypt files, it was useless without the private encryption keys. As a result, the only way to unlock a file encrypted with CryptoLocker was with the private key. Thankfully, FireEye and Fox-IT has acquired a significant proportion of the Cryptolocker private keys.