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hello forum one of my applications needs to query APIs that require a signature in HMAC SHA256 I saw the SIGNATURE library but I don't know how to use it and I'm not sure it's the right way
link: ?? probably a library to draw a SIGNATURE on a Canvas and has nothing to do with HMAC SHA256 Which Library are you speaking of?
link: I just tested. I got the same results as PHP. <?php echo hash_hmac('sha256', 'The quick brown fox jumped over the lazy dog.', 'secret'); ?> Example t
link: HI sorry, I was stuck trying signature is part of the Encription library

I think you didn't assign value and use this variable. After you assign a value then update the Mac with the nonce, not input. m.Update(Mexcnonce.GetBytes("UTF8")) edit: Unless, Mexcnonce = input & ""
link: I am having some issues getting myself logged in to a service, which I believe is due to something I´m not doing right with the signing. See the resul
link: Thanks aeric, it was in fact a mistake that I left the nonce line there and it has now been removed. As far as I understand, I do not need this to cre
link: I didn't carefully read the first post, I just tested it on my machine and the result #5 was correct, same as you posted b4j code. actually the versio

(j)B4XEncryption is for cross platform AES encryption: https://www.b4x.com/android/forum/threads/b4x-b4xencryption.48177/#content You need the Encryption library: https://www.b4x.-and-encryption-library.6839/#content It is compatible with B4J.
link: I am trying to generate sign for an API using HMAC-SHA256 I have jB4XEncryption ticked but I still get 'unknown type error 'UNKNOWN TYPE ERROR I al

HEX_HMAC Log("md5 - hex_hmac") Log(bHashes.Hash(bHashes.HASH_MD5, bHashes.ALG_HEX_HMAC)) Log("sha1 - hex_hmac") Log(bHashes.Hash(bHashes.HASH_SHA1, bHashes.ALG_HEX_HMAC)) Log("sha256 - hex_hmac") Log(bHashes.Hash(bHashes.HASH_SHA256, bHashes.ALG_HEX_HMAC)) Log("sha512 - hex_
link: B64_HMAC Log("md5 - b64_hmac") Log(bHashes.Hash(bHashes.HASH_MD5, bHashes.ALG_b64_HMAC)) Log("sha1 - b64_hmac") Log(bHashes.Hash(bHashes.
link: Ola These libs are for encryption Download Things to note... DO NOT USE MD5, SHA1 for your secure applications e.g. ditigal signatures YOU CAN US
link: B64 HASHES Log("md5 - b64") Log(bHashes.Hash(bHashes.HASH_MD5, bHashes.ALG_B64)) Log("sha1 - b64") Log(bHashes.Hash(bHashes.HASH_SHA1, bH

Tested under B4J Java 11 agains OpenSSL (PHP): AES256 RSA (creating/using keys including signing/verifying) Hashing (HMAC, SHA1, 256 and 512) via Agraham's Encryption library Download: https://www.bouncycastle.org/download/bcprov-jdk18on-171.jar

I need to create a signing function to send data to a private API. The code in Typescript is here, and shown below: import * as crypto from 'crypto'; export class AuthenticationProvider { public readonly publicKey: string; private _privateKey: Buffer; constructor( publicKe
link: Base64 and key maybe missed ? https://www.b4x.-different-hmacsha256-results-using-javaobject-and-using-java-inline-code.99607/
link: ? https://www.b4x.-logging-into-binance-solved.128271/ https://www.b4x.-api-key-ip-or-permissions-for-action-solucionado.128225/#post-804180
link: Shrimpy seems to be a little different from Binance in that the signature is not part of the URL. I will look at that solution tomorrow and see if it

ai.sogou.com\n/speech/asr\nidx=1&starttime=1491810516&type=gbk",""); return sha256_HMAC(message,secretKey); } public static String sha256_HMAC(String message, String secretKey) { System.out.println(message); System.out.println(secretKey); byte secret; secret=secretKey.getBytes(S
link: Sorry that I put up the question so quickly. I just remember that the "\n" in Java means CRLF in B4J. The api document only uses PHP as an example

Hi Erel, thanks for the reply. Yes, I imagined that I need to do that, however I was unable to port code from a B4A project to B4J. Can you please give me an example or point to an example in B4J of how to sign it with a secret key using HMAC-SHA256? Thank you very much.
link: I think (know) that I am unable to correctly Sign the nonce with secret using HMAC-SHA256 to create the correct signature.. I searched around for code
link: Your code is wrong. openssl is an external program. It is not a parameter. Your code just sends this string. You need to use the Encryption library t
link: Dim message, api_key, api_secret, nonce, signature As String message="{ ""MsgType"": ""U2"", ""BalanceReqID"": 1 }" api_key="xxxxxxxxxxkeyher

$hmacSalt), 0, 32); # Generate the encryption and hmac key. # Split out hmac for comparison $macSize = 64; $hmac = substr($cipher, 0, $macSize); $cipher = substr($cipher, $macSize); $compareHmac = hash_hmac('sha256', $cipher, $key); if ($hmac !== $comp
link: solved, the same libs of b4a works here on b4j *-* ty

my library generates a valid jws (that is, jwt + security). it follows the pattern: base64url(header) + "." + base64url(payload) + "." + base64url(signature) (with signature = hmacSha256(base64url(header) + "." + base64url(payload), secretkey)) i don't know what "jws protected header", "jws payload
link: \"clientId\":\"A11226\"}"; /** Generating JWT **/ final JsonWebSignature jws = new JsonWebSignature(); jws.setPayload(payload); jws.setAlgorithmHeader
link: there are some threads relating to jwt, but i didn't see any libraries. so i made a small one. it is based on your parameters. your token was not qu
link: thanks i tested and done and is ok in b4j!! In my documentation, the production method is described as follows The final token consists of 3 parts, m

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