DLOTP

dart:ffi bindings of the COTP library

Usage

It uses CMake to generate a Makefile. To build the native library:

cd lib/cotp_library
cmake .
make

The make command creates a libhello.so (Linux) library file.

Running

Once the native library is built, run pub get to resolve the dependencies. To run the file:

dart example/main.dart

You would see something like:

\\ totp tdata \\
tdata->digits: `6`
tdata->interval: `30`
tdata->bits: `160`
tdata->method: `1`
tdata->algo: `Pointer<NativeFunction<(Pointer<Utf8>, Pointer<Utf8>, Pointer<Utf8>) => Int32>>: address=0x7fba38dad149`
tdata->digest: `SHA1`
tdata->base32_secret: `JBSWY3DPEHPK3PXP`
// totp tdata //

\\ hotp tdata \\
hdata->digits: `6`
hdata->bits: `160`
hdata->method: `2`
hdata->algo: `Pointer<NativeFunction<(Pointer<Utf8>, Pointer<Utf8>, Pointer<Utf8>) => Int32>>: address=0x7fba38dad149`
hdata->digest: `SHA1`
hdata->base32_secret: `JBSWY3DPEHPK3PXP`
// hotp tdata //

Current Time: `1583774903`
TOTP URI 1: `otpauth://totp/name1:account%4?secret=JBSWY3DPEHPK3PXP&issuer=name1&algorithm=SHA1&digits=6&period=30`

HOTP URI 2: `otpauth://hotp/name2:account%4?secret=JBSWY3DPEHPK3PXP&issuer=name2&algorithm=SHA1&digits=6&counter=52`

Generated BASE32 Secret: `HGJTR7KMJN2LS3DG`

TOTP Generated: `547709` `547709`
TOTP Generated: `973669` `973669`
TOTP Verification 1: `false`
TOTP Verification 2: `true`

HOTP Generated at 1: `833905` `833905`
HOTP Verification 1: `true`

Google Authenticator/Authy Support

Generate a QR code from the URI generated on running main.dart and scan it in the app.