Hi Pierrick, The PasswordClass, which describes the Password property that you can add using the class editor to an XWiki class, has two meta properties that control how the password is stored: * password_storageType: store the password in clear or using a hash function * password_algorithm: the hash function to use You shouldn't play with this unless you know what you're doing :) Did you modify the XWiki.XWikiUsers class and set the password_algorithm meta property to 'custom'? Did you create an XWiki class that has a Password property which has the password_algorithm meta property to 'custom'? Hope this helps, Marius On Thu, Oct 24, 2013 at 6:58 PM, <[email protected]> wrote:

Hi everybody,

I'm working with XWiki 3.5.1 deployed on Tomcat 7 and I always have the same error in Tomcat logs when I try to submit a form :

ERROR c.x.x.o.c.PasswordClass - Wrong hash algorithm [custom] in [null] java.security.NoSuchAlgorithmException: custom MessageDigest not available at sun.security.jca.GetInstance.getInstance(Unknown Source) ~[na:1.7.0_45] at java.security.Security.getImpl(Unknown Source) ~[na:1.7.0_45] at java.security.MessageDigest.getInstance(Unknown Source) ~[na:1.7.0_45] at com.xpn.xwiki.objects.classes.PasswordClass.getPasswordHash(PasswordClass.java:220) [xwiki-platform-legacy-oldcore-3.5.1.jar:na] at com.xpn.xwiki.objects.classes.PasswordClass.getPasswordHash(PasswordClass.java:213) [xwiki-platform-legacy-oldcore-3.5.1.jar:na] at com.xpn.xwiki.objects.classes.PasswordClass.getProcessedPassword(PasswordClass.java:193) [xwiki-platform-legacy-oldcore-3.5.1.jar:na] at com.xpn.xwiki.objects.classes.PasswordClass.fromString(PasswordClass.java:75) [xwiki-platform-legacy-oldcore-3.5.1.jar:na] at com.xpn.xwiki.objects.BaseObject.set(BaseObject.java:456) [xwiki-platform-legacy-oldcore-3.5.1.jar:na]

Do you know how I could solve this problem ?

Thanks !

Pierrick

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