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Asked by datajive in Algorithms, Microsoft Development, Microsoft Visual C#.Net
We need to hash ASCII text and store the hash in a database field with a length of 20. It needs to be encoded using printable characters (and XML encoded as well).
I can use the .NET built-in MD5CryptoProvider to create a 128-bit hash, which when base64 encoded, produces a 24 byte string.
I understand that a smaller hash could produce more false positive similar hashes on different text, but the criticality of uniqueness is pretty low.
I still need it in 20 bytes. Anyone familiar with a 96-bit hashing algorithm? Any other ideas on how to encode differently to accomplish this?
20091111-EE-VQP-89 / EE_QW_2_20070628