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A.2.4 Continuous RNG Tests

The continuous random number test is only used in FIPS mode. The RNG generates blocks of 128 bit size; the first block generated per context is saved in the context and another block is generated to be returned to the caller. Each block is compared against the saved block and then stored in the context. If a duplicated block is detected an error is signaled and the library is put into the “Fatal-Error” state. (random/random-fips.c:x931_aes_driver)


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