USB devices benefit most from encryption since they are portable (translation: easy to lose), so this is a worthwhile question to answer. “Does whole disk encryption affect read/write performance on an external USB drive?” Since VeraCrypt is CPU-intensive, I used a test system containing the fastest CPU I had available: an i7 CPU. The audit results were quite good if not perfect, and VeraCrypt picks up where TrueCrypt left off.įor this test, I am using VeraCrypt 1.19 in Linux Mint 18.1. Other encryption systems exist, but VeraCrypt is based on the earlier TrueCrypt that underwent a security audit some time ago. As long as your system has VeraCrypt installed and as long as your operating system can read the formatted file system of the VeraCrypt volume, you can access your data. VeraCrypt volumes can be read in other operating systems, so you are not tied to a specific operating system product. All data on the VeraCrypt device is automatically encrypted/decrypted as needed. Once set up, you can format/read/write/delete like any other hard drive. You can encrypt an entire hard drive/partition or create an encrypted file container that is mounted like a hard drive. How would the different encryption algorithms affect performance? Are some faster or slower than others?įor those new to disk encryption, VeraCrypt is a free, cross-platform, on-the-fly encryption system that operates transparently. I was curious to find out if using VeraCrypt resulted in slower reads and writes for whole disk encryption with an external USB drive and for a standard file container, so I performed my own tests in Linux Mint 18.1. “Does VeraCrypt slow down reads and writes?”ĭo you want to encrypt your data, but are you concerned about a performance drop?
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