Released at the same time as the 26-length Starcraft keys for same reasonįor each key, the public and private value lengths differ, with the lengths usually being 32-bit unsigned integers, but with an 80-bit unsigned integer private value for 26-length keys.Įxample code for encoding and decoding these keys is around, and RealityRipple would like to thank Yegg for his work in creating more efficient Key coding in the linked examples: VB.NET| CD-Key Encoding/Decoding. Upgrade when Starcraft was released as a digital download and the game CD was removed from requirements to run the application Product appears disabled and may have something to do with Chinese region Opened later due to the success and continuing sales of Starcraft The Product value is used to identify the key's client, and relate as follows: Product value For the SID_CDKEY message, the key is passed as typed and is vulnerable to packet sniffing. This is done in the SID_CDKEY2 and SID_AUTH_CHECK messages. The Product and Public values are sent raw to the server as part of the connection, as well as a hash of all three, allowing the server to verify the key as a legitimate match without the opportunity of theft. Any character outside of these masks with these specific lengths should be trimmed.Įach key is the result of an algorithm to encode three values, commonly referred to as the Product, Public, and Private key values.

Note that none of these keys' masks contain dashes/hyphens, dots, spaces, or any sort of punctuation. These keys use the same mask as 16-length keys but with the inclusion of the Y character. These are the more modern keys currently this is the scheme used and sold by Blizzard, including for newer games. These keys are no longer sold by Blizzard. These keys are used by older copies of Warcraft II, Diablo II, and Lord of Destruction. These keys are no longer sold by Blizzard and can be easily generated with a high yield of success. These keys contain only numbers, of which the thirteenth is a checksum to validate the other twelve, used by older Starcraft releases. There are three types of keys varying in length and character masks.

Product keys are yielded by purchasing Blizzard games.

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