Patient asks his cryptographic USB to create a key pair and attaches it to HAP

I.1 Patient $\to$ USB—Patient : HAP

I.2 USB $\to$ Patient : k₀

Patient provides the values of his attributes $a_1,\cdots ,a_n$ to HAP and links them to k₀

I.3 Patient $\to$ HAP : k₀, $\left(a_1,{\upsilon }_1\right),\cdots ,\left(a_n,{\upsilon }_n\right)$

Patient saves in his Wallet the provider, HAP, of his attributes $a_1,\cdots ,a_n$ and his identification key k₀

I.4 Patient $\to$ Wallet : HAP, $a_1,\cdots ,a_n$ , k₀

HAP stores, in his database, the attributes $a_1,\cdots ,a_n$ , their values, their collection times and their identification key k₀

I.5 HAP $\to$ HAP—DB : k₀; $\underset{EMR}{\underbrace{\left\{\left(a_1,{\upsilon }_1,T_1\right),\cdots ,\left(a_n,{\upsilon }_n,T_n\right)\right\}k}}$