pkFromSecret static method
Implementation
static Uint8List pkFromSecret(Uint8List secretKey) {
Uint8List d = Uint8List(64);
List<Uint64List?> p = List<Uint64List?>.filled(4, Uint64List(0));
p[0] = Uint64List(16);
p[1] = Uint64List(16);
p[2] = Uint64List(16);
p[3] = Uint64List(16);
Uint8List pk = Uint8List(32);
Blake2bDigest blake2b = Blake2bDigest(digestSize: 64);
blake2b.update(secretKey, 0, secretKey.length);
blake2b.doFinal(d, 0);
d[0] &= 248;
d[31] &= 127;
d[31] |= 64;
TweetNaclFast._scalarbase(p, d, 0);
TweetNaclFast._pack(pk, p);
return pk;
}