sha256-file

Arguments: filespec &key return

Using sha256-init, sha256-update, and sha256-final, compute the SHA256 hash on the contents of the file given by filespec. Returns the value of sha256-final on the implicitly created context. The return argument is passed to sha256-final (where the various possible values are discussed). Note the warning about integer returns perhaps losing leading 0's.

MD*, SHA*, HMAC, and other message digest support in miscellaneous.htm. See also digest-file.

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Created 2015.5.21.