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Nettle
nettle
Commits
9b29534a
Commit
9b29534a
authored
Apr 22, 2014
by
Niels Möller
Browse files
Fix typos in umac documentation.
parent
cf570173
Changes
1
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nettle.texinfo
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9b29534a
...
...
@@ -2433,17 +2433,17 @@ secret.
The nonce must be at least one octet, and at most 16; nonces shorter
than 16 octets are zero-padded. Nettle's implementation of
@acronym
{
UMAC
}
increments the nonce
for
automatically each message, so
@acronym
{
UMAC
}
increments the nonce automatically
for
each message, so
explicitly setting the nonce for each message is optional. This
auto-increment uses network byte order and it takes the length of the
nonce into acount. E.g., if the initial nonce is ``abc'' (3 octets),
nonce into ac
c
ount. E.g., if the initial nonce is ``abc'' (3 octets),
this value is zero-padded to 16 octets for the first message. For the
next message, the nonce is incremented to ``abd'', and this incremented
value is zero-padded to 16 octets.
@acronym
{
UMAC
}
is defined in four variants, for different output sizes:
32 bits (4 octe
s
t), 64 bits (8 octets), 96 bits (12 octets) and 128 bits
(16 octets), corresponding to different tradeoffs between speed and
32 bits (4 octet
s
), 64 bits (8 octets), 96 bits (12 octets) and 128 bits
(16 octets), corresponding to different trade
-
offs between speed and
security. Using a shorter output size sometimes (but not always!) gives
the same result as using a longer output size and truncating the result.
So it is important to use the right variant. For consistency with other
...
...
@@ -2482,7 +2482,7 @@ The size of an UMAC96 digest, 12.
@defvr Constant UMAC128
_
DIGEST
_
SIZE
The size of an UMAC128 digest, 16.
@end defvr
@defvr Constant UMAC
128
_
DATA
_
SIZE
@defvr Constant UMAC
_
DATA
_
SIZE
The internal block size of UMAC.
@end defvr
...
...
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