NAME
::sha1::sha1 - Perform sha1 hashing
SYNOPSIS
package require sha1 ?1.0?
::sha1::sha1 msg?
::sha1::hmac key text
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DESCRIPTION
This package provides commands to compute a SHA1 digests
of arbitrary messages.
COMMANDS
::sha1::sha1 msg
The command takes a message and returns the SHA1
digest of this message as a hexadecimal string.
::sha1::hmac key text
The command takes a key string and a text and
returns the hmac of the text under the chosen key
as a hexadecimal string.
EXAMPLES
% sha1::sha1 "hello world"
2aae6c35c94fcfb415dbe95f408b9ce91ee846ed
% sha1::hmac "our little secret" "hello world"
a7ed9d62819b9788e22171d9108a00c370104526
KEYWORDS
sha1, hashing, security
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