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The majority of these capabilities can be found in the System.Security.Cryptography namespace. Available hashing algorithms include MD5, SHA1, SHA256, SHA384 and SHA512. Symmetric algorithms available include DES, RC2, Rijndael (AES) and Triple DES. All of those are industry-proven cryptographic routines available for easy use via .NET libraries. Please note that there have been weaknesses or issues associated with certain algorithms such as MD5, SHA1 and DES, so select algorithms carefully.
An equivalent bridge library has been included in the .NET 2.0 platform, making it even easier to DPAPI-enable applications. This can be found in the DataProtectionConfigurationProvider in the System.Security.Cryptography namespace.
Given increasing requirements to protect sensitive patient and customer information due to laws such as HIPAA and California SB-1386, the use of cryptography in applications is beginning to be a must-have rather than something that's nice to have. Fortunately the .NET platform makes the low-level task of implementing these capabilities unnecessary.
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