| Subject | English | Bulgarian |
| comp., MS | data encryption key | ключ за шифроване на данни (A bit string that is used in conjunction with an encryption algorithm to encrypt and decrypt data) |
| comp., MS | encryption key | шифроващ ключ (A bit string that is used in conjunction with an encryption algorithm to encrypt and decrypt data) |
| law | key encryption | шифриране чрез ключ (алешаBG) |
| law | key encryption | шифриране с открит ключ (алешаBG) |
| comp., MS | public key encryption | публичен ключ (A method of encryption that uses a pair of mathematically related keys: a public key and a corresponding private key. Either key can be used to encrypt data, but the corresponding key must be used to decrypt it) |