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Code Issues Releases Wiki Activity

Add sha256() function to $tw.utils (#8043)

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Mario Pietsch 2024-03-08 18:34:30 +01:00 committed by GitHub
parent e64aa6c8f9
commit 28791287b2
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GPG Key ID: B5690EEEBB952194
2 changed files with 13 additions and 7 deletions
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7
core/modules/filters/crypto.js
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@ -14,12 +14,9 @@ Filter operators for cryptography, using the Stanford JavaScript library
exports.sha256 = function(source,operator,options) {
var results = [],
length = parseInt(operator.operand,10) || 20,
sha256 = function(text) {
return $tw.sjcl.codec.hex.fromBits($tw.sjcl.hash.sha256.hash(text)).substr(0,length);
};
length = parseInt(operator.operand,10) || 20;
source(function(tiddler,title) {
results.push(sha256(title));
results.push($tw.utils.sha256(title,{length: length}));
});
return results;
};

9
core/modules/utils/utils.js
View File

@ -819,6 +819,15 @@ exports.hashString = function(str) {
},0);
};
/*
Cryptographic hash function as used by sha256 filter operator
options.length .. number of characters returned defaults to 64
*/
exports.sha256 = function(str, options) {
options = options || {}
return sjcl.codec.hex.fromBits(sjcl.hash.sha256.hash(str)).substr(0,options.length || 64);
}
/*
Base64 utility functions that work in either browser or Node.js
*/