How to access Azure Blob Storage data in nrf7002

[goudam6477]

I am tried to access the server using http_client .I am tested that my implementation to access the local server works properly but the thing is i am tried to access the .bin file from azure blob storage for that i am gets the server url with SAS token and add the Digicert Global root cert but i got the error -3b00 while connect to the server. why its happened and can you please share is there any procedure to access the blob storage.Thanks in advance.

Best regards,

Goudam

[Simonr]

Hi Gaudam

What function exactly is it that returns this -0x3b00  error? It points to the pubkey tag/value that is invalid, so what is this set to in your project?

Best regards,

Simon

[goudam6477]

Hi simon,

While using connect() fn to the socket i got this error

[Simonr]

Hi

What is the security tags set to in your project then? Most likely it's the HTTP_TLS_SEC_TAG is set to an invalid value.

Best regards,

Simon

[goudam6477]

Actually i am missed to add one more intermediate CA from microsoft azure RSA 4096 after add that this issue fixed but i in mqtt also i have some CA while add that i got ENOMEM

[Simonr]

And what function is it that reports the ENOMEM error? This error points to there not being enough memory allocated to something, and that you need to increase the allocated memory to what is complaining.

Best regards,

Simon

[goudam6477]

While using the tls_add_credentials() function i got the ENOMEM .I have 5 Certificates is it issue because of that.if it is issue means how to add those certificates

[Simonr]

Hi

Can you confirm whethert this is tls_credential_add() function, or is tls_add_credentials() a custom function you've made for your project? 

In the tls_credential_add() function, the ca_cert_buf is the limiting buffer that is equal to the size of your certificate. Can you confirm this is the case or not for you as well? 

If you try adding multiple credentials while the certification buffer is only limited to the length of a single buffer that might explain the ENOMEM error messages you're seeing.

Best regards,

Simon

[goudam6477]

Hi simon,

I am using tls_credential_add() function and call this function thrice for add 3 different CA ,after that i got ENOMEM error.

Best regards,

Goudam

[Simonr]

tls_credential_add() isn't a function in the SDK by default, so this must be a custom function in your project. I assume that one or more of the certificates exceed the certification buffer, so you need to check that towards the CAs you're using.

Best regards,

Simon

[goudam6477]

tls_credential_add(tls_sec_tag, TLS_CREDENTIAL_CA_CERTIFICATE,cred, credlen); its a default sdk function present in ncs and i am change the 

CONFIG_TLS_CREDENTIALS_BACKEND_PROTECTED_STORAGE to RAM its fix the size issue but it gives a 0x2700 CA verification failed error .But same cert worked with https alone .if i add mqtt means https handshake failed with this error