Is it possible to generate a SHA-256 hash of a string from a stored procedure in Sql Server 2008?
For deployment reasons, I'd prefer it in TSQL.
I need to get the sha256 hash of a chunk of a binary file.I wrote a little shell script for that task:
dd if=$1 skip=$2 count=$3 bs=1 | sha256sum
When I test it, I get the following result:
bernardo@bernardo-ThinkCentre-Edge72:~$ ./test.sh test.bin 10 2020+0 records in20+0 records out20 bytes (20 B) copied, 0,000100981 s, 198 kB/s7d9330a7c51eabe36a81a6cff308ac4d2035e63d7a356fc112f4fcd16208f43d -
Does that mean the hash is based solely on the chunk output by dd, or did it also use dd's feedback "20+0 records in..."?
I want to find SHA256 compression function in any programming language, which is the same as here https://github.com/Schaeff/ZoKrates/blob/sha-256/examples/sha256/sha256.code. any help please.
I want to use sha256 in my project, but I had some troubles rewriting objC code to swift code. Help me please. I used this answer: How can I compute a SHA-2 (ideally SHA 256 or SHA 512) hash in iOS?
Here's my code
var hash : [CUnsignedChar]CC_SHA256(data.bytes, data.length, hash)var res : NSData = NSData.dataWithBytes(hash, length: CC_SHA256_DIGEST_LENGTH)
it gives me error everything because swift cannot convert
CC_LONG, for example.
I need help finding out how I can decode a base64 encoded HMAC-SHA256 hash with python.
From an API I'm given a base64 encoded HMAC-SHA256 hash of a secret key.
The message I get from the API is: "Mw2aXjiDQABoNi5jB09ie8iTkET4t6JiQJSh+/jIceY="
My secret is: "testapp"
Using the answer from this post Calculating a SHA hash with a string + secret key in python
import hmacimport hashlibimport base64dig = hmac.new(b'testapp', msg=b'Mw2aXjiDQABoNi5jB09ie8iTkET4t6JiQJSh+/jIceY=, digestmod=hashlib.sha256).digest()base64.b64encode(dig).decode()
I get "WTEb7ZIAPb89b0NV8NnI9+0x5alkng1LZ7Ffz39bveE="
I expected a response equal to my message. What am I doing wrong here ?
Any help is appreciated.Best regardsKresten