JavaCard OS

What type of chip do IFD A40CR card use?

The chip IFD A40CR card uses is Infineon SLE 77 series.

ftsafe wrote:The chip IFD A40CR card uses is Infineon SLE 77 series.

NFC TagInfo App identifies my A40CR card as chip from NXP

rena2019 wrote:

ftsafe wrote:The chip IFD A40CR card uses is Infineon SLE 77 series.

NFC TagInfo App identifies my A40CR card as chip from NXP

Hi, rena.
This should be the problem of this App.
If the chip manufacturer of IFD A40CR card is NXP, it won't show the "IC type" as "Unknown IC".

I received information that stated the FT-JAVA/A40CR card uses the SLE77CLFX2400PM.
Although Infineon states that the chip is capable of RSA up to 4096, the implementation
on the card is limited to 2048. ECC is optional from the card issuer. I wish it was enabled.
This would make a great OpenPGP card if it were.

ThePhoenyx wrote:I received information that stated the FT-JAVA/A40CR card uses the SLE77CLFX2400PM.
Although Infineon states that the chip is capable of RSA up to 4096, the implementation
on the card is limited to 2048. ECC is optional from the card issuer. I wish it was enabled.
This would make a great OpenPGP card if it were.

Hi，
1. IFD A40CR card doesn't support RSA 4096.
If you request higher level security than RSA2048, we suggest to use ECC.

2. IFD A40CR card doesn't support ECC due to the lack of space. But we have A22CR which supports ECC algorithm.

Sorry for the long turnaround on reply. Thank you for the information. Is there a minimum quantity when asking for the EC option?

Phoenyx33 wrote:Sorry for the long turnaround on reply. Thank you for the information. Is there a minimum quantity when asking for the EC option?

Hi Phoenyx,

There is no minimum quantity when asking for the ECC option. You can buy the cards with the quantity according to your needs.
Please be sure to tell us specific requirement about the cards before shopping. Thanks