I am not able to generate RSA key pair inside VSS through macros. I am in need of script to gerate key inside and compute Public CA and do RSA computation inside. Please help in this regard.
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VSS? I'm not familiar with that acronym... Is CommServer (VCS) an option? – David Jan 23 '16 at 19:09
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VSS-VeriFone Security Script ..this module is used for key management and computation . – amitesh Jan 25 '16 at 05:30
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Oh, so is this like for injecting keys into pin pads and such? I'm afraid you're out of my realm... :) – David Jan 25 '16 at 21:13
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Yes, this is used for key injection in terminal secure slots. abc.vss file get compiled to abc.vso file. – amitesh Jan 27 '16 at 09:46
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As far as I know, it is not possible to generate a RSA keypair inside VSS (v4.0).
You might want to try generating a keypair using the embedded openssl and then store it into the key slot (beware that there are probably some constraints on some key slots (modulus length,exponent length) -- check your documentation).
Beware that the RSACOMP operation does only a raw RSA computation (modular exponentiation) and you will have to handle the padding stuff yourself (and correctly).
A much simpler alternative is to generate the keypair outside (HSM?) and inject it securely to the terminal (I do not understand your use case -- but some certificate for this keypair could be injected as well)
Good luck!
vlp
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