Signature.fromBytes constructor
Signature.fromBytes(Uint8List bytes)
Implementation
Signature.fromBytes(Uint8List bytes) {
algorithm = SignatureSchema.fromValue(bytes[0]);
var rs = bytes.sublist(1);
if (algorithm == SignatureSchema.sm2Sm3) {
var idx = rs.indexWhere((b) => b == 0);
if (idx == -1) throw ArgumentError('Missing sm2 id');
if (!ListEquality().equals(rs.sublist(0, idx), Constant.defaultSm2Id))
throw ArgumentError('Deformed sm2 id');
rs = rs.sublist(idx + 1);
}
r = rs.sublist(0, 32);
s = rs.sublist(32);
}