The credential response should be able to include either one digital presentation proof generated from one digital credential or several digital presentation proofs generated from multiple digital credentials
About ## 6. Credential Response
The binding to a public binding key present in a digital credential can be done in two ways:
a) each digital credential contains a different public binding key.
In that case, several digital signatures using the corresponding private binding key are associated with each digital presentation proof.
b) every digital credential contains a same public binding key.
In that case, a single digital signature using the corresponding private binding key is associated with the digital presentation proof.
Note: In both cases, to ensure the unlinkability property, each digital credential shall be used only once.
The credential response should be able to include either one digital presentation proof generated from one digital credential or several digital presentation proofs generated from multiple digital credentials
About ## 6. Credential Response
The binding to a public binding key present in a digital credential can be done in two ways:
a) each digital credential contains a different public binding key.
In that case, several digital signatures using the corresponding private binding key are associated with each digital presentation proof.
b) every digital credential contains a same public binding key.
In that case, a single digital signature using the corresponding private binding key is associated with the digital presentation proof.
Note: In both cases, to ensure the unlinkability property, each digital credential shall be used only once.