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authorHugo Hörnquist <hugo@lysator.liu.se>2023-09-12 10:23:59 +0200
committerHugo Hörnquist <hugo@lysator.liu.se>2023-09-12 10:25:14 +0200
commit108a0454d05c744c4a05e298cfc8cbf157952414 (patch)
treeca99bed5d49eabfb644c3b1c0a397b1354efdaf3 /doc/ref/general/crypto.texi
parentChange overarching structure of info document. (diff)
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+@node Cryptographic and Hash Procedures
+@section Cryptographic and Hash Procedures
+
+This module links libcrypto, exposing some hash procedures.
+
+@defun sha256 message
+Calculate the sha256-sum of @var{message}. The message can either be a
+bytevector or a string (in which case it will de encoded as UTF-8).
+
+Returns the checksum as a bytevector.
+@end defun
+
+@defun checksum->string message-digest [port]
+Generates a hex digest string from a checksum (generated by
+@code{sha256}). The checksum is written to @var{port} if given, or
+returned as a string otherwise.
+@end defun