xs/vendor/gopkg.in/hlandau/passlib.v1/hash/sha2crypt/raw/base64.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