Has anyone encountered an issue with wsse authentication for soap calls in apex?   We have made sure that the password digest and credentials are correct.

authentication works in SoapUi, but fails from our apex class. 

Ideas would be great as we are pulling our hair trying.

Is it possible to view the value of individual bytes in a blob? We are trying to store a series of values within a blob and then reference them by looking at a range of bytes in that blob. Any ideas? Thanks, Barry