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This article introduces you how to interpret the steps of MongoDB SCRAM-SHA-1 authentication mechanism, the content is very detailed, interested friends can refer to, I hope it can be helpful to you.

SCRAM-SHA-1 is the default authentication mechanism of MongoDB, which is defined in IETF standard. RFC 5802 is a "challenge-response" authentication mechanism with high security.

Step interpretation

See the picture

The client initiates a SCRAM authentication request; user name and client random string are included in the authentication parameters (to prevent replay attacks)

The server sends out a challenge response; the server first checks the user name, and then generates a salt factor, number of iterations, and merged strings (including client random strings and server random strings)

The client responds to a proof (proof data) and merges a string; the proof data of the response is generated according to the random parameters given by the service and the client key, which is the result of the XOR calculation of a client signature and key

The server combines the stored key with random parameters, uses the same algorithm to generate the signature and verifies the client proof data; if the verification passes, the server sends its own signature in a similar way

The client verifies the server signature data.

This is the end of the steps on how to interpret the MongoDB SCRAM-SHA-1 authentication mechanism. I hope the above content can be helpful to you and learn more knowledge. If you think the article is good, you can share it for more people to see.

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