I'm using Diskcryptor to encrypt a 2TB external USB HD and the process is taking over 2 days. I chose a 100-character strong
encryption key passphrase (because, why not?) and am now wondering if the length of the key passphrase has any impact on how long it takes to encrypt the drive. I'm also wondering if the length of the key passphrase will have an impact on how long it takes to write and read files from the encrypted drive. If I had chosen a 25-character key passphrase would this process be faster? Would reading and writing from the drive be faster?
Update: It has been explained to be below that what I was calling the encryption key is in fact the passphrase.