if u.Credentials.Status == auth.AccountOff {
					return nil, errAccessKeyDisabled
				}
				return nil, errInvalidAccessKeyID
			}
			cred := u.Credentials
			// Expired credentials return error.
			if cred.IsTemp() && cred.IsExpired() {
				return nil, errInvalidAccessKeyID
			}
			return []byte(cred.SecretKey), nil
		} // this means claims.AccessKey == rootAccessKey
		if !globalAPIConfig.permitRootAccess() {

		{
			queryParams: map[string]string{
				"Expires":        "60",
				"Signature":      "badsignature",
				"AWSAccessKeyId": "Z7IXGOO6BZ0REAN1Q26I",
			},
			expected: ErrInvalidAccessKeyID,
		},
		// (2) Should error with malformed expires.
		{
			queryParams: map[string]string{
				"Expires":        "60s",
				"Signature":      "badsignature",
				"AWSAccessKeyId": accessKey,
			},

		return ch, ErrCredMalformed
	}
	accessKey := strings.Join(credElements[:len(credElements)-4], SlashSeparator) // The access key may contain one or more `/`
	if !auth.IsAccessKeyValid(accessKey) {
		return ch, ErrInvalidAccessKeyID
	}
	// Save access key id.
	cred := credentialHeader{
		accessKey: accessKey,
	}
	credElements = credElements[len(credElements)-4:]
	var e error
	cred.scope.date, e = time.Parse(yyyymmdd, credElements[0])

			// error in such a scenario.
			if u.Credentials.Status == auth.AccountOff {
				return cred, false, ErrAccessKeyDisabled
			}
			return cred, false, ErrInvalidAccessKeyID
		}
		cred = u.Credentials
	}

	claims, s3Err := checkClaimsFromToken(r, cred)
	if s3Err != ErrNone {
		return cred, false, s3Err
	}
	cred.Claims = claims