How to create sha256 hash with salt - hash

Question

I would like to migrate hash generation to BigQuery which has SHA256, but does not have salt as parameter.
For example in R I can do something like this:
library(openssl)
sha256("test#gmail.com", key = "111")
# [1] "172f052058445afd9fe3afce05bfec573b5bb4c659bfd4cfc69a59d1597a0031"
Update
same with python based on an answer here:
import hmac
import hashlib
print(hmac.new(b"111", b"test#gmail.com", hashlib.sha256).hexdigest())
# 172f052058445afd9fe3afce05bfec573b5bb4c659bfd4cfc69a59d1597a0031

Answer 1

I hope by "migrate", you mean to migrate the logic not the exact byte-wise output from R Sha256() function.
R is using hmacsha256 and looking at Microsoft's HMACSHA256 class, it can be roughly expressed as:
The HMAC process mixes a secret key with the message data, hashes the result with the hash function, mixes that hash value with the secret key again, and then applies the hash function a second time. The output hash is 256 bits in length.
create temp function hmacsha256(content STRING, key STRING)
AS (SHA256(
CONCAT(
TO_HEX(SHA256(CONCAT(content, key))), key)
));
SELECT TO_HEX(hmacsha256("test#gmail.com", "111"));
Output:
+------------------------------------------------------------------+
| f0_ |
+------------------------------------------------------------------+
| 4010f74e5c69ddbe1e36975f7cb8be64bcfd1203dbc8e009b29d7a12a8bf5fef |
+------------------------------------------------------------------+

Answer 2

With the help of #Yun I have managed to solve this.
To apply HMAC you will need to include external library file in the example function bellow.
CREATE TEMP FUNCTION USER_HASH(message STRING, secret STRING)
RETURNS STRING
LANGUAGE js
OPTIONS (
-- copy this Forge library file to Storage:
-- https://cdn.jsdelivr.net/npm/node-forge#0.7.0/dist/forge.min.js
-- #see https://github.com/digitalbazaar/forge
library=["gs://.../forge.min.js"]
)
AS
"""
var hmac = forge.hmac.create();
hmac.start('sha256', secret);
hmac.update(message);
return hmac.digest().toHex();
""";
SELECT USER_HASH("test#gmail.com", "111");
-- Row f0_
-- 1 172f052058445afd9fe3afce05bfec573b5bb4c659bfd4cfc69a59d1597a0031