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NoSuchAlgorithmException for HmacSHA1 [message #857784]

Thu, 26 April 2012 21:34

andrew thomson

Messages: 1
Registered: April 2012

Junior Member

Hi all,

I've just downloaded Eclipse and written my first program to test some Web Services.
As part of this I need to generate a secret key using the HmacSHA1 algorithm, but

Mac mac = Mac.getInstance("HmacSHA1");

throws a NoSuchAlgorithmException for me. I 've googled a bit and tried adding

java.security.Security.addProvider(new com.sun.crypto.provider.SunJCE());

, as well as deleting and re-adding JRE System library from my project build path to no avail. Simply adding

import com.sun.crypto.provider.SunJCE;

to my class doesn't help either. Everything I've read suggests that this provider should be available by default, so what am I doing wrong? Can anyone tell me how to make it available to my class bearing in mind I've only been dipping my toe in the java world for a day and I am still pretty shaky about importing packages/programs?

Many thanks in advance for any assistance...

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