Ns sha1

Function

ns_sha1 string

Description

Returns a 40-character, hex-encoded string containing the SHA1 hash of the first argument.

Usage

Example 1:

set sRawPassword "mypassword"
set sPassword [ns_sha1 $sRawPassword]
ns_adp_puts $sPassword
# 04003622EB9D0F788CE7568C7EED23809534365A

Usually this function is used with a salt, as without a salt it is succeptible to dictionary-based attacks.

Example 2:

set sSalt "salty"
set sRawPassword "mypassword"
set sPassword [ns_sha1 ${sRawPassword}${sSalt}]
# B48FB74597C11FC609DBE912992085EB07847FB6

This function is provided by the nssha1 module.

Unfortunately, this implementation does not seem to be immediately compatible with other SHA1 implementations.

Postgresql:

template1=> select encode(digest('mypassword','SHA1'),'hex');
                  encode
------------------------------------------
 91dfd9ddb4198affc5c194cd8ce6d338fde470e2
(1 row)