Switch to OpenSSL digests and usage of PKCS1 sign/verify operation
acu118023 Document the public interface of SignedHash. Add :envelope option to use OpenSSL EVP API instead of raw-crypto API.
acu118023 add unit test coverage for SignedHash EVP (envelope) mode
Merge branch 'master' into teal_13_11_acu118023_global_session_v3
Merge branch 'master' into teal_13_11_acu118023_global_session_v3
acu118023 bump version to 2.8.2 since 2.8.1 was published from master
acu118023 raise more specific exceptions for invalid/expired signature
acu118023 fix unfinished comment
Merge pull request #98 from rightscale/teal_13_11_acu118023_global_session_v3

acu118023 GlobalSession v3 and more