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* cmCryptoHash: Increase alignment of HashFile bufferBrad King2013-06-131-3/+3
| | | | | | | The SHA512_Update implementation accesses input data via 64-bit integers. This requires alignment of the input buffer on some architectures. Align our stack-allocated buffer for file content to satisfy this requirement.
* cmCryptoHash: Provide factory "New" methodBrad King2011-11-161-0/+19
| | | | | Construct a cmCryptoHash subclass instance based on the name of the desired hash algorithm.
* Add file(SHA*) commands to compute cryptographic hashesBrad King2011-11-161-0/+21
| | | | Add a file() command API for SHA1, SHA224, SHA256, SHA384, and SHA512.
* Factor Compute(File|String)MD5 into cmCryptoHash helperBrad King2011-11-161-0/+90
Define an abstract API around the backend hash algorithm. Expose ifstream errors to HashFile callers. Always try opening the file. Succeed only if the end of file is reached without error.