mirror of
https://gogs.blitter.com/RLabs/xs
synced 2024-08-14 10:26:42 +00:00
35 lines
757 B
Go
35 lines
757 B
Go
|
package raw
|
||
|
|
|
||
|
|
const bmap = "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
|
||
|
|
|
||
|
|
// Encodes a byte string using the sha2-crypt base64 variant.
|
||
|
|
func EncodeBase64(b []byte) string {
|
||
|
|
o := make([]byte, len(b)/3*4+4)
|
||
|
|
|
||
|
|
for i, j := 0, 0; i < len(b); {
|
||
|
|
b1 := b[i]
|
||
|
|
b2 := byte(0)
|
||
|
|
b3 := byte(0)
|
||
|
|
|
||
|
|
if (i + 1) < len(b) {
|
||
|
|
b2 = b[i+1]
|
||
|
|
}
|
||
|
|
if (i + 2) < len(b) {
|
||
|
|
b3 = b[i+2]
|
||
|
|
}
|
||
|
|
|
||
|
|
o[j] = bmap[(b1 & 0x3F)]
|
||
|
|
o[j+1] = bmap[((b1&0xC0)>>6)|((b2&0x0F)<<2)]
|
||
|
|
o[j+2] = bmap[((b2&0xF0)>>4)|((b3&0x03)<<4)]
|
||
|
|
o[j+3] = bmap[(b3&0xFC)>>2]
|
||
|
|
i += 3
|
||
|
|
j += 4
|
||
|
|
}
|
||
|
|
|
||
|
|
s := string(o)
|
||
|
|
return s[0 : len(b)*4/3-(len(b)%4)+1]
|
||
|
|
}
|
||
|
|
|
||
|
|
// © 2008-2012 Assurance Technologies LLC. (Python passlib) BSD License
|
||
|
|
// © 2014 Hugo Landau <hlandau@devever.net> BSD License
|