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Use comment from md_rand.c in rand.pod

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Ulf Möller 2000-01-21 23:36:40 +00:00
parent cc8709a090
commit 0b5cfe32e9
2 changed files with 11 additions and 8 deletions
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2
crypto/rand/md_rand.c
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@ -188,7 +188,7 @@ static void ssleay_rand_add(const void *buf, int num, int add)
*
* The input is chopped up into units of 16 bytes (or less for
* the last block). Each of these blocks is run through the hash
* function as follow: The data passed to the hash function
* function as follows: The data passed to the hash function
* is the current 'md', the same number of bytes from the 'state'
* (the location determined by in incremented looping index) as
* the current 'block', the new key data 'block', and 'count'

17
doc/crypto/rand.pod
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@ -106,13 +106,16 @@ working hash function ('md') and a counter ('count').
Whenever seed data is added, it is inserted into the 'state' as
follows.
The input is chopped up into units of 16 bytes (or less for the last
block). Each of these blocks is run through the hash function. The
data passed to the hash function is the current 'md', the same number
of bytes from the 'state' (the location determined by in incremented
looping index) as the current 'block' and the new key data 'block'.
The result of this is kept in 'md' and also xored into the 'state' at
the same locations that were used as input into the hash function. I
The input is chopped up into units of 16 bytes (or less for
the last block). Each of these blocks is run through the hash
function as follows: The data passed to the hash function
is the current 'md', the same number of bytes from the 'state'
(the location determined by in incremented looping index) as
the current 'block', the new key data 'block', and 'count'
(which is incremented after each use).
The result of this is kept in 'md' and also xored into the
'state' at the same locations that were used as input into the
hash function. I
believe this system addresses points 1 (hash function; currently
SHA-1), 3 (the 'state'), 4 (via the 'md'), 5 (by the use of a hash
function and xor).