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Revision as of 15:58, 17 January 2016
This XQuery Module provides functions that perform different hash operations.
Conventions
All functions in this module are assigned to the http://basex.org/modules/hash
namespace, which is statically bound to the hash
prefix.
All errors are assigned to the http://basex.org/errors
namespace, which is statically bound to the bxerr
prefix.
Functions
hash:md5
Signatures
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hash:md5($value as xs:anyAtomicType) as xs:base64Binary
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Summary
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Computes the MD5 hash of the given $value , which may be of type xs:string, xs:base64Binary, or xs:hexBinary.
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Examples
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xs:hexBinary(hash:md5("BaseX")) returns 0D65185C9E296311C0A2200179E479A2 .
hash:md5(xs:base64Binary("")) returns 1B2M2Y8AsgTpgAmY7PhCfg== .
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hash:sha1
Signatures
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hash:sha1($value as xs:anyAtomicType) as xs:base64Binary
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Summary
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Computes the SHA-1 hash of the given $value , which may be of type xs:string, xs:base64Binary, or xs:hexBinary.
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Examples
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xs:hexBinary(hash:sha1("BaseX")) returns 3AD5958F0F27D5AFFDCA2957560F121D0597A4ED .
hash:sha1(xs:base64Binary("")) returns 2jmj7l5rSw0yVb/vlWAYkK/YBwk= .
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hash:sha256
Signatures
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hash:sha256($value as xs:anyAtomicType) as xs:base64Binary
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Summary
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Computes the SHA-256 hash of the given $value , which may be of type xs:string, xs:base64Binary, or xs:hexBinary.
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Examples
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xs:hexBinary(hash:sha256("BaseX")) returns 15D570763DEB75D728BB69643392873B835CCCC94A2F1E881909DA47662821A3 .
hash:sha256(xs:base64Binary("")) returns 47DEQpj8HBSa+/TImW+5JCeuQeRkm5NMpJWZG3hSuFU= .
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hash:hash
Signatures
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hash:hash($value as xs:anyAtomicType, $algorithm as xs:string) as xs:base64Binary
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Summary
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Computes the hash of the given $value , using the specified $algorithm . The specified values may be of type xs:string, xs:base64Binary, or xs:hexBinary. The following three algorihms are supported: MD5 , SHA-1 , and SHA-256 .
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Errors
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HASH0001 : the specified hashing algorithm is unknown.
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Examples
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xs:hexBinary(hash:hash("", "MD5")) returns D41D8CD98F00B204E9800998ECF8427E .
hash:hash("", "") raises an error.
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Errors
Code
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Description
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HASH0001
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The specified hash algorithm is unknown.
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Changelog
The module was introduced with Version 7.3.