C.I.E – Carta di Identità Elettronica Functional Specification Version 2.0
CIE - Functional Specification v 2.0
CIE - Functional Specification v 2.0
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The record content will then be:The format for the key exponent is:The record content will then be:• ARMT = RFU, MUST be set to 00h• Dif_pq = RFU, MUST be set to 00h• Pub_Exp = is the length in bits of the key exponent. Pub_Exp shall be in the range 16…64bits.Security:The access con<strong>di</strong>tion to satisfy is AC_GENKEYPAIR for the Private key BSO.The AC_APPEND of the file that will contain the public key has to be verified.12.18 PERFORM SECURITY OPERATION12.18.1 PSO_DECCLA INS P1 P2 P3 Data Field0X 2A 80 86LC=length of data to be deciphered+ 1 byte for pad<strong>di</strong>ng in<strong>di</strong>cator00 (pad<strong>di</strong>ng in<strong>di</strong>cator) || enciphered dataTable 55: PSO_DEC commandThis command deciphers the input data with a symmetric or an asymmetric key. The first byte inthe input data is the in<strong>di</strong>cator of the pad<strong>di</strong>ng used.The deciphered data is returned in the command response.To use this command it is necessary to load in memory a current security environment (CSE) usingthe MSE command. The CSE CON component has to refer to an object of type:• RSA KPRI CRYPT/DECRYPT• 3DES CRYPT/DECRYPTSecurity:CIE - <strong>Functional</strong> <strong>Specification</strong> v <strong>2.0</strong> -Page 68/76
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