Cryptographic Hash Functions- hmacsha256bytehashbase64key (Need Alternative function)

RE: Cryptographic Hash Functions- hmacsha256bytehashbase64key (Need Alternative function)

Mike Schmitt — Tue, 19 Aug 2025 16:17:00 GMT

understood, i guess what i'm fishing for here is just whether the base64 text encoding in question is possible to separate (being unfamiliar with the named function myself), since I have an OOB expression rule that can handle base64 conversion on an arbitrary string of arbitrary length (and ironically handles far more than the plugin-based base64 conversion function available).

RE: Cryptographic Hash Functions- hmacsha256bytehashbase64key (Need Alternative function)

Jesse Knight — Tue, 19 Aug 2025 14:17:30 GMT

It depends on whether the original function hashed and then encoded, versus encoded and then hashed. I encountered this function / use case a few years ago, but I don't remember what the outcome of the prototyping was. Ultimately the developer sending the HMAC signature and I avoided the base64 encoding altogether.

RE: Cryptographic Hash Functions- hmacsha256bytehashbase64key (Need Alternative function)

Shubham Aware — Sat, 16 Aug 2025 06:59:59 GMT

[quote userid="129171" url="~/discussions/f/general/39612/cryptographic-hash-functions--hmacsha256bytehashbase64key-need-alternative-function/150960"] We used this funciton hmacsha256hash(Key, Text) . Function is giving the result like base64 encoded hmac which is like hmacsha256bytehashbase64key functin output format.
But output is exactly is not matching.[/quote]

Could you help us with what will be inputs and expected output to guide you better.

RE: Cryptographic Hash Functions- hmacsha256bytehashbase64key (Need Alternative function)

Mike Schmitt — Fri, 15 Aug 2025 14:53:00 GMT

Could you get the non-base-64 HMAC output then convert it to base64 manually?

RE: Cryptographic Hash Functions- hmacsha256bytehashbase64key (Need Alternative function)

Stefan Helzle — Fri, 15 Aug 2025 07:59:42 GMT

In the past, I investigated the Java source code of these plugins to understand what they are actually doing.

RE: Cryptographic Hash Functions- hmacsha256bytehashbase64key (Need Alternative function)

Ramesh Babu — Fri, 15 Aug 2025 07:53:55 GMT

Stefan Helzle - We used this funciton hmacsha256hash(Key, Text) . Function is giving the result like base64 encoded hmac which is like hmacsha256bytehashbase64key functin output format.
But output is exactly is not matching.

RE: Cryptographic Hash Functions- hmacsha256bytehashbase64key (Need Alternative function)

Stefan Helzle — Thu, 14 Aug 2025 15:13:05 GMT

Any chance you can use other available functions to replace this specific one?

RE: Cryptographic Hash Functions- hmacsha256bytehashbase64key (Need Alternative function)

Mike Schmitt — Thu, 14 Aug 2025 15:10:08 GMT

I'm not familiar with that function - can you describe what you want to accomplish?

RE: Cryptographic Hash Functions- hmacsha256bytehashbase64key (Need Alternative function)

Ramesh Babu — Thu, 14 Aug 2025 15:09:16 GMT

Need alternative function for this function hmacsha256bytehashbase64key

RE: Cryptographic Hash Functions- hmacsha256bytehashbase64key (Need Alternative function)

Ramesh Babu — Thu, 14 Aug 2025 15:02:23 GMT

Stefan Helzle - function is deprecated but Plug-in is avaialble.Need alternative function for this hmacsha256bytehashbase64key

RE: Cryptographic Hash Functions- hmacsha256bytehashbase64key (Need Alternative function)

Stefan Helzle — Thu, 14 Aug 2025 14:49:53 GMT

[quote userid="129171" url="~/discussions/f/general/39612/cryptographic-hash-functions--hmacsha256bytehashbase64key-need-alternative-function"]In cloud this function is not supporting .[/quote]

What do you mean? Is this from a plugin? Is the plugin deprecated? is there an alternative plugin?

RE: Cryptographic Hash Functions- hmacsha256bytehashbase64key (Need Alternative function)

Mike Schmitt — Thu, 14 Aug 2025 14:46:06 GMT

What's your use case exactly?