org.springframework.security.oauth.common.signature
Interfaces 
OAuthSignatureMethod
OAuthSignatureMethodFactory
SaltedConsumerSecret
SharedConsumerSecret
SignatureSecret
Classes 
CoreOAuthSignatureMethodFactory
HMAC_SHA1SignatureMethod
PlainTextSignatureMethod
RSA_SHA1SignatureMethod
RSAKeySecret
SharedConsumerSecretImpl
SignatureSecretEditor
Exceptions 
InvalidSignatureException
UnsupportedSignatureMethodException