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Identity/AttachedServices/KeyServerProtocol: Difference between revisions
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Identity/AttachedServices/KeyServerProtocol (view source)
Revision as of 03:08, 12 July 2013
, 12 July 2013→Resetting the Account
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[[File:PICL-IdPAuth-resetAccount.png| | [[File:PICL-IdPAuth-encrypt-resetAccount.png|Client encrypts resetAccount request]] | ||
The request data will contain wrap(kB), a new (randomly-generated) SRP salt, and the new SRP verifier, all concatenated together. Since we always pad the SRP verifier to the full (256-byte) group length, all four pieces are fixed-length. We generate enough reqXORkey bytes to cover all four values. | The request data will contain wrap(kB), a new (randomly-generated) SRP salt, and the new SRP verifier, all concatenated together. Since we always pad the SRP verifier to the full (256-byte) group length, all four pieces are fixed-length. We generate enough reqXORkey bytes to cover all four values. | ||
The request data is XORed with requestXORkey, then delivered in the body of a HAWK request that uses tokenID as credentials.id and requestHMACkey as credentials.key . Note: it is critical to include the request body in the HAWK integrity check (options.payload=true, on both client and server), otherwise a man-in-the-middle could substitute their own SRP verifier, giving them control over the account (access to the user's class-A data, and a brute-force attack on their password). | The request data is XORed with requestXORkey, then delivered in the body of a HAWK request that uses tokenID as credentials.id and requestHMACkey as credentials.key . Note: it is critical to include the request body in the HAWK integrity check (options.payload=true, on both client and server), otherwise a man-in-the-middle could substitute their own SRP verifier, giving them control over the account (access to the user's class-A data, and a brute-force attack on their password). | ||
Clients might use resetAccount for two reasons: | Clients might use resetAccount for two reasons: | ||