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bdb54214
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2017-12-11T16:46:05
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hash: commoncrypto hash should support large files
Teach the CommonCrypto hash mechanisms to support large files. The hash
primitives take a `CC_LONG` (aka `uint32_t`) at a time. So loop to give
the hash function at most an unsigned 32 bit's worth of bytes until we
have hashed the entire file.
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