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Update EVP_MAC.pod

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Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/9667)
This commit is contained in:
Richard Levitte 2019-08-23 14:54:16 +02:00
parent 703170d4b9
commit f3b8d77f99
1 changed files with 7 additions and 11 deletions
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18
doc/man3/EVP_MAC.pod
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@ -205,28 +205,24 @@ Some MACs do not support this option.
=item OSSL_MAC_PARAM_ENGINE ("engine") <utf8string>
=item OSSL_MAC_PARAM_MD ("md") <utf8string>
=item OSSL_MAC_PARAM_PROPERTIES ("properties") <utf8string>
=item OSSL_MAC_PARAM_DIGEST ("digest") <utf8string>
=item OSSL_MAC_PARAM_CIPHER ("cipher") <utf8string>
=item OSSL_MAC_PARAM_ALGORITHM ("algorithm") <utf8string>
For MAC implementations that use an underlying computation cipher or
digest, these parameters set what the algorithm should be, and the
engine that implements the algorithm or the properties to fetch it
by if needed.
For MAC implementations that use an underlying computation algorithm,
these parameters set what the algorithm should be, and the engine that
implements the algorithm if needed.
The value is always the name of the intended engine or algorithm.
The value is always the name of the intended engine, algorithm,
or the properties.
Note that not all algorithms may support all digests.
HMAC does not support variable output length digests such as SHAKE128
or SHAKE256.
Also note that OSSL_MAC_PARAM_ALGORITHM can be use generically instead
of OSSL_MAC_PARAM_MD, OSSL_MAC_PARAM_DIGEST or OSSL_MAC_PARAM_CIPHER,
and that OSSL_MAC_PARAM_MD and OSSL_MAC_PARAM_DIGEST are also interchangable.
=item OSSL_MAC_PARAM_SIZE <unsigned int>
For MAC implementations that support it, set the output size that