I am using Redis.jl and I need to define a callback function for key expiration. I checked its Pub/Sub documentation but did not find any help about __keyevent#0__:expired. Could anyone help please?
Update 1:
for channel __keyevent#15__:expired and callback function f(chan, key) I got this Error:
MethodError(Redis.SubscriptionMessage, ("OK",), 0x0000000000006a57)
Related
I am trying to access this endpoint, where signature parameter has to be sent as query parameter
https://binance-docs.github.io/apidocs/spot/en/#current-open-orders-user_data
I am trying to understand what value for that signature key should be passed.
Firstly i thought it was secret key binance exchange given. But it was not, because when try to above endpoint it says that :
{
"code": -1022,
"msg": "Signature for this request is not valid."
}
^Postman
As you can see i passed my secret key as the value for signature key. It is not working. So what am i really missing here ? or do i need to do some transformations to the secret key ? please help me understand it and advance thanks!
It looks like you are putting the timestamp before the recvWindow in your query string.
timestamp is always the last parameter and the order of the parameters in the docs clearly puts recvWindow before timestamp.
I managed to get it working with query string recvWindow=60000×tamp=1652512756366
Secret key and signature are two different things.
You need to sign the parameters with your secret key. This process produces a signature. And then you pass this resulting signature to the payload.
I'm not sure how to produce the signature in C++, however Binance docs show an example of signing the data in console with openssl (scroll right on all 3 examples).
I am working on a cloud HSM service and I see CKA_ATTRIBUTE_INVALID error when I am trying to create a AES 256 key with following attributes:
CKA_TOKEN=0
CKA_SENSITIVE=0
CKA_PRIVATE=1
CKA_ENCRYPT=1
CKA_DECRYPT=1
CKA_SIGN=1
CKA_VERIFY=1
CKA_WRAP=1
CKA_UNWRAP=1
CKA_DERIVE=1
CKA_EXTRACTABLE=1
CKA_MODIFIABLE=0
and hence the error:
Status: C_DeriveKey returned error. (CKR_ATTRIBUTE_VALUE_INVALID)
I figured out if I pass CKA_SENSITIVE and CKA_PRIVATE both as 1 it passes and key gets created.
My question is how do I know which are the valid attribute combinations?
Can someone point me to a documentation, please.
I didn't find much details in standard PKCS#11 spec guide.
I would appreciate any help here!!
Cheers.
As far as I can see the following attributes are have wrong values:
CKA_SIGN=1
CKA_VERIFY=1
Symmetric key can't be used in signing.
Also this values are have some questions:
CKA_TOKEN=0
means that the key is session object,
CKA_SENSITIVE=0
means that the key value is "visible" - it is not secure.
From my experience:
try to remove attributes from template one by one and you can find which of them are wrong.
Hi I just got question where i need to assign the error messages for my model validation from key value pair, i tried with the ModelState.AddModelError("TaskName","Error Message"), but i need some thing more reliable and Error messages are residing in database.
So any luck from my friends out there.
Thanks in advance
I am trying to figure out how to implement session management in wso2 esb.So i have written a class mediator which generates session_ID that i want to store.For storing the session id I am using following code as:
org.apache.axis2.context.ServiceContext serviceContext = org.apache.axis2.context.MessageContext
.getCurrentMessageContext().getServiceContext();
serviceContext.setProperty("SessionIDGlobal", uuid);
But while running it in my esb's proxy it throws null pointer exception at getCurrentMessageContext part.I have followed another approach where-in i am storing the sessionID in property mediator and tried to get its value but when i click postRequest operation after generateSessionID operation from try-it. all the property gets reset and my sessionID property gives me null value. What should i do to rectify this problem? Is there any alternate way?
You have to create servicecontext like this;
ConfigurationContext cfgCtx =(((Axis2MessageContext) synCtx).getAxis2MessageContext(). getConfigurationContext();
cfgCtx.getOperationContext().getServiceContext();
You should store in the Message context but you have stored in the service Context. please refer this to understand how you can set the properties at different scopes. Synapase (default), Axis2, Transport etc.
Please refer this blog post for complete details.
http://blog.facilelogin.com/2011/02/wso2-esb-property-mediator-different.html
i am using the Booksleeve hash api for Redis. I am doing the following:
CurrentConnection.Hashes.Set(0, "item:1", "priority", task.priority.ToString());
var taskResult = CurrentConnection.Hashes.GetString(0, "item:1", "priority");
taskResult.Wait();
var priority = Int32.Parse(taskResult.Result)
However i am getting an Aggregate exception:
"ERR Operation against a key holding the wrong kind of value"
I am not sure what i am doing wrong here (except of blocking the task :)).
Note: CurrentConnection is an instance of BookSleeve.RedisConnection
Please help!
Thanks
That is not a Booksleeve issue - it is a redis error; in fact, the full error message you should be seeing is:
Redis server: ERR Operation against a key holding the wrong kind of value
(where I try to make it clear that this error has come from redis, not Booksleeve)
As for what causes this: each key in redis has a designated type; string, hash, list, etc. You cannot use hash operations on something that is not a hash.
My guess, then, is that "item:1" already exists, but as something other than a hash. I have unit tests that confirm this from Booksleeve (i.e. with/without a pre-existing non-hash value).
You can investigate this in redis using redis-cli or any other client (telnet works, at a push), with the command:
type item:1
(thanks #Sripathi)