From BaseX Documentation
This XQuery Module provides functions that perform different hash operations.
[edit] Conventions
All functions and errors in this module are assigned to the http://basex.org/modules/hash
namespace, which is statically bound to the hash
prefix.
[edit] Functions
[edit] hash:md5
Signatures
 hash:md5($value as xs:anyAtomicType) as xs:base64Binary

Summary
 Computes the MD5 hash of the given $value , which may be of type xs:string, xs:base64Binary, or xs:hexBinary.

Examples


string(xs:hexBinary(hash:md5("BaseX"))) returns 0D65185C9E296311C0A2200179E479A2 .

string(hash:md5(xs:base64Binary(""))) returns 1B2M2Y8AsgTpgAmY7PhCfg== .

[edit] hash:sha1
Signatures
 hash:sha1($value as xs:anyAtomicType) as xs:base64Binary

Summary
 Computes the SHA1 hash of the given $value , which may be of type xs:string, xs:base64Binary, or xs:hexBinary.

Examples


string(xs:hexBinary(hash:sha1("BaseX"))) returns 3AD5958F0F27D5AFFDCA2957560F121D0597A4ED .

string(hash:sha1(xs:base64Binary(""))) returns 2jmj7l5rSw0yVb/vlWAYkK/YBwk= .

[edit] hash:sha256
Signatures
 hash:sha256($value as xs:anyAtomicType) as xs:base64Binary

Summary
 Computes the SHA256 hash of the given $value , which may be of type xs:string, xs:base64Binary, or xs:hexBinary.

Examples


string(xs:hexBinary(hash:sha256("BaseX"))) returns 15D570763DEB75D728BB69643392873B835CCCC94A2F1E881909DA47662821A3 .

string(hash:sha256(xs:base64Binary(""))) returns 47DEQpj8HBSa+/TImW+5JCeuQeRkm5NMpJWZG3hSuFU= .

[edit] hash:hash
Signatures
 hash:hash($value as xs:anyAtomicType, $algorithm as xs:string) as xs:base64Binary

Summary
 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 , SHA1 , and SHA256 .

Errors
 algorithm : the specified hashing algorithm is unknown.

Examples


string(xs:hexBinary(hash:hash("", "MD5"))) returns D41D8CD98F00B204E9800998ECF8427E .

string(hash:hash("", "")) raises an error, because no algorithm was specified.

[edit] Errors
Code
 Description

algorithm
 The specified hash algorithm is unknown.

[edit] Changelog
 Version 9.0
 Updated: error codes updated; errors now use the module namespace
The module was introduced with Version 7.3.