FIM - Can FIM create SAML assertions signed with SHA256 instead of SHA1?
3 years ago
Originally Published: 2014-01-24
Article Number
000050192
Applies To
RSA Federated Identity Manager (FIM)  versions 4.1  , 4.2
Issue
FIM -  Can FIM create SAML assertions signed with SHA256 instead of SHA1?
Can FIM be forced to create SAML assertions signed with SHA256 instead of SHA1? The SAML specs only mention SHA1 .

Resolution

FIM doesn??t have capability to select higher strength algorithms??

It supports only following algorithms depending upon the key algorithm of keystore available for signing.

DSA:  ??http://www.w3.org/2000/09/xmldsig#dsa-sha1??

RSA: ??http://www.w3.org/2000/09/xmldsig#rsa-sha1??

The SAML spec :
5.4.1 Signing Formats and Algorithms
SAML processors SHOULD support the use of RSA signing and verification for public key
operations in accordance with the algorithm identified by http://www.w3.org/2000/09/xmldsig#rsa-sha1.