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Description |
Pure implementations of the SHA suite of hash functions. The implementation
is basically an unoptimized translation of FIPS 180-2 into Haskell. If you're
looking for performance, you probably won't find it here.
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Synopsis |
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Digest and related functions
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An abstract datatype for digests.
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Convert a digest to a string.
The digest is rendered as fixed with hexadecimal number.
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Convert a digest to an Integer.
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Convert a digest to a ByteString.
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Calculating hashes
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Compute the SHA-1 hash of the given ByteString. The output is guaranteed
to be exactly 160 bits, or 20 bytes, long. This is a good default for
programs that need a good, but not necessarily hyper-secure, hash function.
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Compute the SHA-224 hash of the given ByteString. Note that SHA-224 and
SHA-384 differ only slightly from SHA-256 and SHA-512, and use truncated
versions of the resulting hashes. So using 224/384 may not, in fact, save
you very much ...
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Compute the SHA-256 hash of the given ByteString. The output is guaranteed
to be exactly 256 bits, or 32 bytes, long. If your security requirements
are pretty serious, this is a good choice. For truly significant security
concerns, however, you might try one of the bigger options.
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Compute the SHA-384 hash of the given ByteString. Yup, you guessed it,
the output will be exactly 384 bits, or 48 bytes, long.
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For those for whom only the biggest hashes will do, this computes the
SHA-512 hash of the given ByteString. The output will be 64 bytes, or
512 bits, long.
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Calculating message authentication codes (MACs)
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Produced by Haddock version 2.7.2 |