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Re: SSLRead fails with errSSLBadRecordMac [SOLVED]


I am using SecureTransport for implementing a secure network server. Everything is working fine, except when I try to transfer requests that are larger than 100kByte. Then after having transfered about 100k calling SSLRead suddenly returns errSSLBadRecordMac (-9846)? The read buffer I am using is 4096 bytes large.

Has anybody also observed this strange behavior or knows a way to make it work?

The one time I saw this it was because my SSLRead/Write callbacks were wrong, and weren't reporting back to the caller the correct amount of data supplied.

Thanks for the hint. I think I found the root of the problem. I already was reporting the correct amount of read data in my callback but I forgot to return errSSLWouldBlock if the actually read amount of data was smaller than requested. Now it works fine even with large transfers.

Frank

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References: 
 >SSLRead fails with errSSLBadRecordMac (From: Frank Illenberger <email@hidden>)
 >Re: SSLRead fails with errSSLBadRecordMac (From: Frederick Cheung <email@hidden>)



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