WebMD Symptom Checker helps you find the most common medical conditions indicated by the symptoms joint pain, muscle stiffness (rigidity), muscle weakness and night sweats including Lack of exercise, Exercise or physical activity, and Hypocalcemia.endinitis symptoms include muscle and tendon pain or stiffness close to a joint, and pain with movement.
Symmetric Encryption. Symmetric encryption (or pre-shared key encryption) uses a single key to both encrypt and decrypt data. Both the sender and the receiver need the same key to communicate. Symmetric key sizes are typically 128 or 256 bitsâthe larger the key size, the harder the key is to crack.
The keys which EFS uses to encrypt and decrypt data, is a public and private key pair, and a per file encryption key. EFS generates a file encryption key (FEK) which is a symmetric encryption key to encrypt the data. The File Encryption Key (FEK) is next encrypted by means of asymmetric encryption using the userâs public key. Asymmetric encryption actually uses a public and private key pair for stronger security.