Setting up HMAC-SHA1 security
HMAC stands for hash-based message authentication code. This authentication is a product of a hash function applied to the body of a message along with a secret key.
Key: A 36 character key that is used for hashing the time in seconds.
Timestamp: The time window for which the survey URL will be valid. You'll need to pass the following security token fields via the URL: surveyID, ts, hash, mode.
To set up HMAC-SHA1 security, go to:
Login » Surveys » Edit » Security
- Under Survey Authentication , select HMAC-SHA1
- Enter the details for the fields: Key, Time Stamp, and check the box for Tamper Proof URL if required.
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