free product key microsoft office professional plus 2016

Also according to some tests with 256 bits key and 5000 iteration there is no repetition in the generated subkeys, but in small key size a problem of repetition will be encountered. In this research, the proposed algorithm proved the concept of diffusion on the key itself. The proposed algorithm (Roty_Shift) was tested using different key sizes and obtained good results. The proposed algorithm consists of five levels, and according to these five levels the subkeys will be generated and the size of each one is (N*N), each one of these subkeys is possible to use it in any encryption strategy of block cipher type. Roty_Shift needs two secret seeds as secret keys, seed1 will be generated by true random number generator (TRNG) while seed1and seed2 will be used in pseudorandom number generator (PRNG), also this research utilizes the mechanism of the key derivation function (KDF) to generate the subkeys, on other hand Roty_Shift can be considered as PRNG. To run cmd.exe as administrator, enter the following command:Īt the command prompt with administrative rights, you can continue with manual KMS activation.In this research a proposed algorithm to generate secret keys was accomplished, the proposed key generation algorithm will be called (Roty_Shift algorithm) and it will generate a series (list) of subkeys may be used for data encryption. This will start a command-line interface prompt without administrative rights. In this case, to perform the KMS activation, enter the path into Internet Explorer: When the 30 day grace-period has expired, Windows is running in “Reduced Functionality Mode“, only the Internet Explorer can be called. This error can usually be resolved by a BIOS update. The KMS activation expect here a so-called “Windows marker” and fails if it is corrupted or not found. Such BIOS version contains an invalid ACPI_SLIC table. on right mouse click.Įrror 0xC004F074 (“The Key Management Service (KMS) is unavailable”): In most cases it refers to incorrectly set time or the time zone.Įrror 0xC004F035 and 0xC004F059: Especially for computers that were originally acquired with an OEM operating system, in this case the KMS activation is prevented by computer's BIOS. The option Run as administrator is available e.g. For manual activation, you must run the Command-Line Interface (cmd.exe) as administrator.

Free product key microsoft office professional plus 2016