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Nathan Collins reported that s2n_hmac_digest_verify() doesn't handle the case correctly where digests of different length are passed in. This change updates s2n_hmac_digest_verify() to take a single length parameter, instead of two. This makes things simpler, by avoiding the sometimes confusing double-bang operation (!!), and removes the issue by insisting that the caller use matching lengths to begin with. Closes: aws#205
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Nathan Collins reported that s2n_hmac_digest_verify() doesn't handle the case
correctly where digests of different length are passed in. This change updates
s2n_hmac_digest_verify() to take a single length parameter, instead of two.
This makes things simpler, by avoiding the sometimes confusing double-bang
operation (!!), and removes the issue by insisting that the caller use matching
lengths to begin with.
Closes: #205