10-gamay Number Ug 8-gamay Number Pagkakabig Relasyon sa Access Control Card

Kasagaran sa access control system, ang 8-bit card number kay wiegand26-bit nga output, ang 10-bit card number kay wiegand34-bit nga output.
Pananglitan, pag-imprinta sa usa ka kard:
0013961168 10-numero sa bit card,
o
213 02000 3+5 8-numero sa bit card.
10-numero sa bit card 0013961168, convert sa hexadecimal mao 00 D5 07 D0.
8-numero sa bit card 213 02000, ang una 3 mga numero 213 converted to hexadecimal is D5, the last five digits 02000 converted to hexadecimal is 07 D0.

Busa, the rules can be found: First, the 10-digit conversion to hexadecimal is 4 bytes, the first byte does not need, the second byte is converted to the first 3 digits of the 8-bit card number, the third and fourth the bytes are converted together into the last 5 digits of the 8-bit card number.
Excel formula=(MOD(X,256*256))+(MOD(INT(X/(256*256)),256)*100000).

It can be seen from the above that the 10-bit card number in the access control attendance system can be converted into an 8-bit card number by an algorithm, and the 8-bit card number is difficult to restore to a 10-bit card number.
Most of the access control attendance systems developed and produced by Seabreeze Smart Card Co.,Ltd are compatible with wiegand26 and wiegand34, and the software can also freely choose 8-bit card number or 10-bit card number operation.

(SeabreezeRFID)