On Apr 8, 2014 2:03 AM, "Edwin Chu" <edwinche...@gmail.com> wrote:
>
> I am not openssl expert and here is just my observation.
>
> TLS frame messages into length-prefixed "records". Each records has a
> 1 byte contentType and a 2 byte record length, followed by the record
> content and MAC.
>
> Heartbeat messages are TLS records with contentType 24 of this content
format:
>
> struct {
> HeartbeatMessageType type;
> uint16 payload_length;
> opaque payload[HeartbeatMessage.payload_length];
> opaque padding[padding_length];
> } HeartbeatMessage;
>
Here: https://github.com/FiloSottile/Heartbleed
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