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authorGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
committerGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
commite06ec920f7a5d784e674c4c4b4e6d1da3dc7391d (patch)
tree55713f725f77b44ebfec86e4eec3ce33e71458ca /node_modules/public-encrypt/mgf.js
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api, login, auth
Diffstat (limited to 'node_modules/public-encrypt/mgf.js')
-rw-r--r--node_modules/public-encrypt/mgf.js19
1 files changed, 19 insertions, 0 deletions
diff --git a/node_modules/public-encrypt/mgf.js b/node_modules/public-encrypt/mgf.js
new file mode 100644
index 0000000..b966f31
--- /dev/null
+++ b/node_modules/public-encrypt/mgf.js
@@ -0,0 +1,19 @@
+var createHash = require('create-hash')
+var Buffer = require('safe-buffer').Buffer
+
+module.exports = function (seed, len) {
+ var t = Buffer.alloc(0)
+ var i = 0
+ var c
+ while (t.length < len) {
+ c = i2ops(i++)
+ t = Buffer.concat([t, createHash('sha1').update(seed).update(c).digest()])
+ }
+ return t.slice(0, len)
+}
+
+function i2ops (c) {
+ var out = Buffer.allocUnsafe(4)
+ out.writeUInt32BE(c, 0)
+ return out
+}