• Sudhi (5/5) Oct 14 2019 Hi All,
• Jacob Carlborg (7/12) Oct 15 2019 There's a package available for Botan here [1] and bindings to
• Sudhi (3/18) Oct 19 2019 I went through the API and documentation of both these packages,
• Andre Pany (10/15) Oct 15 2019 Hi,
• Sudhi (3/20) Oct 19 2019 Thanks Andre,

Sudhi <sudheendra.malli gmail.com> writes:

Hi All,

I am trying to generate TOTP using a secret key in DLang. I want 
to use this on server side which is written using DLang.

Could some one help me on how to generate TOTP using openssl or 
botan or any other crypto library.

Jacob Carlborg <doob me.com> writes:

On Tuesday, 15 October 2019 at 06:19:57 UTC, Sudhi wrote:
 Hi All,

 I am trying to generate TOTP using a secret key in DLang. I 
 want to use this on server side which is written using DLang.

 Could some one help me on how to generate TOTP using openssl or 
 botan or any other crypto library.

There's a package available for Botan here [1] and bindings to 
OpenSSL here [2]. Although I don't know how to use them for this.

[1] https://code.dlang.org/packages/botan
[2] https://github.com/D-Programming-Deimos/openssl

--
/Jacob Carlborg

Sudhi <sudheendra.malli gmail.com> writes:

On Tuesday, 15 October 2019 at 14:31:08 UTC, Jacob Carlborg wrote:
 On Tuesday, 15 October 2019 at 06:19:57 UTC, Sudhi wrote:
 Hi All,

 I am trying to generate TOTP using a secret key in DLang. I 
 want to use this on server side which is written using DLang.

 Could some one help me on how to generate TOTP using openssl 
 or botan or any other crypto library.

 There's a package available for Botan here [1] and bindings to 
 OpenSSL here [2]. Although I don't know how to use them for 
 this.

 [1] https://code.dlang.org/packages/botan
 [2] https://github.com/D-Programming-Deimos/openssl

 --
 /Jacob Carlborg

I went through the API and documentation of both these packages, 
did not see any mentions of TOTP in that.

Andre Pany <andre s-e-a-p.de> writes:

On Tuesday, 15 October 2019 at 06:19:57 UTC, Sudhi wrote:
 Hi All,

 I am trying to generate TOTP using a secret key in DLang. I 
 want to use this on server side which is written using DLang.

 Could some one help me on how to generate TOTP using openssl or 
 botan or any other crypto library.

Hi,

I am not an expert at all in this area, but what I understand 
from the related RFCs for TOTP and HOTP is that you need HMAC 
SHA1. This functionality is already included in Phobos.
Therefore you do not need openssl or botan but "just" implement 
the algorithm as explained here

https://tools.ietf.org/html/rfc4226

Kind regards
Andre

Sudhi <sudheendra.malli gmail.com> writes:

On Tuesday, 15 October 2019 at 18:29:38 UTC, Andre Pany wrote:
 On Tuesday, 15 October 2019 at 06:19:57 UTC, Sudhi wrote:
 Hi All,

 I am trying to generate TOTP using a secret key in DLang. I 
 want to use this on server side which is written using DLang.

 Could some one help me on how to generate TOTP using openssl 
 or botan or any other crypto library.

 Hi,

 I am not an expert at all in this area, but what I understand 
 from the related RFCs for TOTP and HOTP is that you need HMAC 
 SHA1. This functionality is already included in Phobos.
 Therefore you do not need openssl or botan but "just" implement 
 the algorithm as explained here

 https://tools.ietf.org/html/rfc4226

 Kind regards
 Andre

Thanks Andre,

I will try this.