• Stephan Mueller's avatar
    crypto: drbg - advance output buffer pointer · 8ff4c191
    Stephan Mueller authored
    The CTR DRBG segments the number of random bytes to be generated into
    128 byte blocks. The current code misses the advancement of the output
    buffer pointer when the requestor asks for more than 128 bytes of data.
    In this case, the next 128 byte block of random numbers is copied to
    the beginning of the output buffer again. This implies that only the
    first 128 bytes of the output buffer would ever be filled.
    
    The patch adds the advancement of the buffer pointer to fill the entire
    buffer.
    Signed-off-by: default avatarStephan Mueller <smueller@chronox.de>
    Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
    8ff4c191
drbg.c 57 KB