hmac-sha1-init

Arguments: key &key external-format

hmac-sha1-init prepares and returns a context for use in subsequent calls to hmac-sha1-update and hmac-sha1-final. The context is initialized according to the key argument. key can be a string or usb8 array (i.e (unsigned-byte 8) array). If key is a string, it is internally converted to an usb8 array according to the external-format keyword argument (or the default external format, if the keyword argument is not supplied).

See MD5, SHA1, HMAC, and RC4 support in miscellaneous.htm.

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This page was not revised from the 8.1 page.
Created 2010.1.21.