FIELD: computer engineering. SUBSTANCE: storage unit receives data unit, which includes encrypted execution unit and signature component. Separation unit, which is connected to storage unit, separates signature component from encrypted execution unit. Decoding unit, which is connected to separation unit, deciphers encrypted execution unit using signature component as key in order to produce deciphered executable application. Identification unit, which is connected to decoding unit, searches for identification label in deciphered executable application and identifies complex key assigned to identification label. Signature generation unit, which is connected to identification unit, executes key cryptographic algorithm for deciphered executable application using complex key as key. EFFECT: increased reliability due to detection of hidden interface errors between system components. 12 cl, 7 dwg
