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Thank you for your answer.
I have some question need you help me to clarify.
I create a application in the DESFire EV1 and set this application have 3 keys and changeKey access is use Key2.
1.When i use Key0(AMK) to authentication, then i changeKey Key1,i can't change it,the card response 0xAE but i can change Key0 and Key2
2.When i use Key2(APK) to authentication, then i changeKey Key0 and Key2,i can't change them,the card response 0xAE but i can change Key1
3.When i use Key1(APK) to authentication, then i changeKey Key0 and Key2,the both can't to change and card response 0xAE
So,I think when i use AMK to authentication, i can change AMK and changeKey access select Key,other Key can't to be change.
if i use changeKey access select key to authentication,then i can change other key, except itself and AMK. that is right?
other one question
I create a application in the DESFire EV1 and set it crypto type is DES,May i change crypto type to other type?
Thank you for you help.
I have some question need you help me to clarify.
I create a application in the DESFire EV1 and set this application have 3 keys and changeKey access is use Key2.
1.When i use Key0(AMK) to authentication, then i changeKey Key1,i can't change it,the card response 0xAE but i can change Key0 and Key2
2.When i use Key2(APK) to authentication, then i changeKey Key0 and Key2,i can't change them,the card response 0xAE but i can change Key1
3.When i use Key1(APK) to authentication, then i changeKey Key0 and Key2,the both can't to change and card response 0xAE
So,I think when i use AMK to authentication, i can change AMK and changeKey access select Key,other Key can't to be change.
if i use changeKey access select key to authentication,then i can change other key, except itself and AMK. that is right?
other one question
I create a application in the DESFire EV1 and set it crypto type is DES,May i change crypto type to other type?
Thank you for you help.
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