How to find the optimal model size for Large Language Models to optimize effectiveness and cost

AWS Cognito Finally Supports Custom Claims for Access Tokens

How do I use remembered devices in my Amazon Cognito user pool?

Amazon Cognito isn't delivering MFA text messages to my app's users. How do I troubleshoot this?

How do I calculate throughput and set a CloudWatch alarm for Site-to-Site VPN?

How do I pass ClientMetadata to Lambda triggers in Amazon Cognito?

[This knowledge article](https://aws.amazon.com/premiumsupport/knowledge-center/cognito-user-pool-remembered-devices/) describes the calculation of `PASSWORD_CLAIM_SIGNATURE` for the case of `ChallengeName: "DEVICE_PASSWORD_VERIFIER"`.


> * Let PASSWORD_CLAIM_SIGNATURE = SHA256_HMAC(K_USER, DeviceGroupKey + DeviceKey + PASSWORD_CLAIM_SECRET_BLOCK + TIMESTAMP), base64-encoded
> * Let K_USER = SHA256_HASH(S_USER)
> * Let S_USER = (SRP_B - k * gx)(a + ux)
> * Let x = SHA256_HASH(salt + FULL_PASSWORD)
> * Let u = SHA256_HASH(SRP_A + SRP_B)
> * Let k = SHA256_HASH(N + g)

 What is the equivalent calculation of `PASSWORD_CLAIM_SIGNATURE` for the case of `ChallengeName: "PASSWORD_VERIFIER"`?

For Cognito USER_SRP_AUTH - how to calculate PASSWORD_CLAIM_SIGNATURE to respond to ChallengeName: "PASSWORD_VERIFIER"?

Developer Tools

AWS Well-Architected Framework

Security, Identity, & Compliance

AWS Cognito returns Invalid session token error when responding to SMS MFA right after responding to a NEW_PASSWORD_REQUIRED challenge

I need help please ! I want to calculating price for that vm's to migrate to cloud. This i need for my master thesis, so i would please someone to help me to make better calculating. Thank you for und

How to reduce latency for Cognito globally?

JavaScript example for responding to Cognito's SRP authentication challenges

For Cognito USER_SRP_AUTH - how to calculate PASSWORD_CLAIM_SIGNATURE to respond to ChallengeName: "PASSWORD_VERIFIER"?

Relevant content