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Commit fa0c23de authored by Richard Levitte's avatar Richard Levitte
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Adapt HMAC to the EVP_MD_CTX changes



This change required some special treatment, as HMAC is intertwined
with EVP_MD.  For now, all local HMAC_CTX variables MUST be
initialised with HMAC_CTX_EMPTY, or whatever happens to be on the
stack will be mistaken for actual pointers to EVP_MD_CTX.  This will
change as soon as HMAC_CTX becomes opaque.

Also, since HMAC_CTX_init() can fail now, its return type changes from
void to int, and it will return 0 on failure, 1 on success.

Reviewed-by: default avatarRich Salz <rsalz@openssl.org>
parent 77a01145
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