| 摘要 |
The present invention relates to a method of accessing a shared subroutine (4a, 4b, 4c) being part of a shared library (4) of a computer system (100) that provides an encryption (10) of a parameter list passed to the shared subroutine (4a, 4b, 4c) in order to prevent unauthorized applications (2) from accessing said shared subroutine (4a4b, 4c). The encryption (10) is performed in authorized applications (1, 3), whereas the decryption (30) is performed in the shared subroutine (4a, 4b, 4c). A variant provides generating a first security information in an authorized application (1, 3), generating a second security information in said shared subroutine (4a, 4b, 4c) and comparing said first security information to said secondary security information to determine whether said shared subroutine (4a, 4b, 4c), may be executed.
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