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读写Smart卡加解密接口的程序

Very brief instructions

To init card:

Erase card and create pkcs15 dir
	./pkcs15-init -EC

Store a PIN on the card, using ID 01
	./pkcs15-init -P  --auth-id 01 --pin aaaa --puk bbbb --label "My PIN"

Generate a 512 bit RSA key and store on card, protected by the above PIN
	./pkcs15-init -G rsa/512 --auth-id 01

Or, store a pkcs12 key/certificate pair
	./pkcs15-init --auth-id 01 -f pkcs12 -S mycert.p12

	Note that the pkcs12 file must use just one password - if you
	use different passwords for integrity and confidentiality,
	OpenSC will fail to import the keys.