Unable to generate RSA key

[Anonymous]

Dears,

I'm stack with generation of RSA key using pidCrypt.RSA.generate(B,E) method when the exponent is > 1.

The following code generate an error:

var securityModule = new pidCrypt.RSA();
securityModule.generate(1024, 17);

The error is :

jsbn.fs (line 687)
 b.nextBytes(x);
b is undefined

Please help.

Warm regards

Younes Ouadi

[Anonymous]

Dears,

I will be very thankful to get some quick feedback on my question. I have to decide whether pidCrypt is suitable for a very urgent development or not. In this development, the keys should be generated by the client and hence the above code is critical for the selection.

Warm regards

Younes Ouadi
 

[Anonymous]

Dears,

After many attempts, I have found a workaround. It consists of supplying the exponent as a string instead of a number, very strange indeed!

So the above code should be as follow :

var securityModule = new pidCrypt.RSA();
securityModule.generate(1024, "11");

By the way, the exponent should be expressed in HEX instead of DEC.

I hope the maintainer of 'jsbn.js'  find a time to fix this issue.

Warm regards

Younes Ouadi

[Morris]

Thank you! I was struggling with the same issue in jsbn.js!