The RSA-SHA1 signature method uses the RSASSA-PKCS1-v1_5 signature algorithm as defined in
[RFC3447] section 8.2 (more simply known as PKCS#1), using SHA-1 as the hash function for
EMSA-PKCS1-v1_5. It is assumed that the Consumer has provided its RSA public key in a
verified way to the Service Provider, in a manner which is beyond the scope of this
- Chapter 9.3 ("RSA-SHA1")
The following methods can be invoked on instances of this class.