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How to respond to AWS Cognito DEVICE_SRP_AUTH for remember/trust device feature?

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1

I have AWS Cognito based auth implementation on a Node App (Server-side, not using Amplify.

I have been using adminInitiateAuth with AuthFlow ADMIN_NO_SRP_AUTH and it gives SOFTWARE_TOKEN_MFA in ChallengeName for MFA which is working well.

Now I need remember/trust this device functionality.

For that, once I send DEVICE_KEY in adminInitiateAuth, I get DEVICE_SRP_AUTH as challenge.

I have tried using adminRespondToAuthChallenge

adminRespondToAuthChallenge(
 ClientId: clientId,
 UserPoolId: UserPoolId,
 ChallengeName: 'DEVICE_SRP_AUTH',
 ChallengeResponses: 
 PASSWORD_VERIFIER: "PasswordVerifier-used-when-doing-confirmDevice",
 USERNAME: "user-id-for-srp",
 DEVICE_KEY: "device-key"
 
)

I get SRP_A is required error message. I am not quite sure how to get SRP_A in there and now I am not sure it it is even right way to do remember this device functionality

I was hoping if I get through this, it will skip MFA and give me auth tokens that I need.

Can anyone guide me through this.

aws-sdk amazon-cognito

share|improve this question

asked Mar 27 at 19:41

roxxypoxxyroxxypoxxy

1,90011 gold badge1111 silver badges2222 bronze badges

add a comment | 

1

I have AWS Cognito based auth implementation on a Node App (Server-side, not using Amplify.

I have been using adminInitiateAuth with AuthFlow ADMIN_NO_SRP_AUTH and it gives SOFTWARE_TOKEN_MFA in ChallengeName for MFA which is working well.

Now I need remember/trust this device functionality.

For that, once I send DEVICE_KEY in adminInitiateAuth, I get DEVICE_SRP_AUTH as challenge.

I have tried using adminRespondToAuthChallenge

adminRespondToAuthChallenge(
 ClientId: clientId,
 UserPoolId: UserPoolId,
 ChallengeName: 'DEVICE_SRP_AUTH',
 ChallengeResponses: 
 PASSWORD_VERIFIER: "PasswordVerifier-used-when-doing-confirmDevice",
 USERNAME: "user-id-for-srp",
 DEVICE_KEY: "device-key"
 
)

I get SRP_A is required error message. I am not quite sure how to get SRP_A in there and now I am not sure it it is even right way to do remember this device functionality

I was hoping if I get through this, it will skip MFA and give me auth tokens that I need.

Can anyone guide me through this.

aws-sdk amazon-cognito

share|improve this question

asked Mar 27 at 19:41

roxxypoxxyroxxypoxxy

1,90011 gold badge1111 silver badges2222 bronze badges

add a comment | 

I have AWS Cognito based auth implementation on a Node App (Server-side, not using Amplify.

I have been using adminInitiateAuth with AuthFlow ADMIN_NO_SRP_AUTH and it gives SOFTWARE_TOKEN_MFA in ChallengeName for MFA which is working well.

Now I need remember/trust this device functionality.

For that, once I send DEVICE_KEY in adminInitiateAuth, I get DEVICE_SRP_AUTH as challenge.

I have tried using adminRespondToAuthChallenge

adminRespondToAuthChallenge(
 ClientId: clientId,
 UserPoolId: UserPoolId,
 ChallengeName: 'DEVICE_SRP_AUTH',
 ChallengeResponses: 
 PASSWORD_VERIFIER: "PasswordVerifier-used-when-doing-confirmDevice",
 USERNAME: "user-id-for-srp",
 DEVICE_KEY: "device-key"
 
)

I get SRP_A is required error message. I am not quite sure how to get SRP_A in there and now I am not sure it it is even right way to do remember this device functionality

I was hoping if I get through this, it will skip MFA and give me auth tokens that I need.

Can anyone guide me through this.

aws-sdk amazon-cognito

share|improve this question

asked Mar 27 at 19:41

roxxypoxxyroxxypoxxy

1,90011 gold badge1111 silver badges2222 bronze badges

adminRespondToAuthChallenge(
 ClientId: clientId,
 UserPoolId: UserPoolId,
 ChallengeName: 'DEVICE_SRP_AUTH',
 ChallengeResponses: 
 PASSWORD_VERIFIER: "PasswordVerifier-used-when-doing-confirmDevice",
 USERNAME: "user-id-for-srp",
 DEVICE_KEY: "device-key"
 
)

share|improve this question

asked Mar 27 at 19:41

roxxypoxxyroxxypoxxy

1,90011 gold badge1111 silver badges2222 bronze badges

share|improve this question

asked Mar 27 at 19:41

roxxypoxxyroxxypoxxy

1,90011 gold badge1111 silver badges2222 bronze badges

asked Mar 27 at 19:41

roxxypoxxyroxxypoxxy

1,90011 gold badge1111 silver badges2222 bronze badges

asked Mar 27 at 19:41

roxxypoxxyroxxypoxxy

1,90011 gold badge1111 silver badges2222 bronze badges