ifHMAC
Implemented by
| Name | Description |
|---|---|
| roHMAC | The HMAC component provides an interface to the OpenSSL HMAC functions |
Supported methods
Setup(digestType as String, key as Object) as Integer
Description
Initializes new HMAC context.
Parameters
| Name | Type | Description |
|---|---|---|
| digestType | String | Selects one of the supported digest algorithms, as documented in roEVPDigest. |
| key | Object | An roByteArray containing the key for the MAC. |
Return Value
An integer indicating whether the function succeeded (0) or failed (1).
Reinit() as Integer
Description
Re-initializes an existing HMAC context. This can be called to reuse an existing roHMAC object to authenticate new data.
Return Value
An integer indicating whether the function succeeded (0) or failed (1).
Process(message as Object) as Object
Description
Digests the data in an array generates a MAC. Calling this method is the same as making the following calls:
hmac.Reinit()
hmac.Update(message)
mac = hmac.Final()Parameters
| Name | Type | Description |
|---|---|---|
| message | Object | An roByteArray with the data to be digested. |
Return Value
An roByteArray containing the generated MAC.
Update(partialMesssage as Object) as Void
Description
Adds more data to be digested. The data in the array is added to the current digest.
Parameters
| Name | Type | Description |
|---|---|---|
| partialMesssage | Object | An roByteArray with the additional data to be digested. |
Final() as Object
Description
Returns an roByteArray containing the final MAC.
Return Value
The final MAC.
Updated 3 months ago