NienfengYao / openssl-aes-cmac

AES-CMAC example with openssl library

openssl-aes-cmac

AES-CMAC example with openssl library

Test

make
./signtool -h
./signtool -t (Do test case)
./signtool -k (Read key[128-bits] from file and show the content)
./signtool -i file -c (Read data from file and do AES-CMAC operation)
./signtool -i file -o file -s (Read data from file and generate the signature)
./signtool -i file -k file -c (Read data/key from file and do AES-CMAC operation)
./signtool -i file -k file -o file -s (Read data/key from file and generate the signature)
hexdump -n 48 image_signed.bin (Check the content of header of the signed file)
echo -n -e \\x2b\\x7e\\x15\\x16\\x28\\xae\\xd2\\xa6\\xab\\xf7\\x15\\x88\\x09\\xcf\\x4f\\x3c > key.bin(Write key to file)

Reference

• RFC 4493: The AES-CMAC Algorithm
• PyCryptodome
• Compute AES CMAC using OpenSSL/libcrypto
  • ecerulm/mac_example.c
  • gcc mac_example.c -lcrypto
• CryptoJS extension: AES-CMAC and AES-SIV in JavaScript in the Browser
  • 可用來驗証，與 mac_example.c 的結果相同
• megrxu/AES-CMAC
  • 除了 AES-CMAC，還包含了對 message 的 encryption/decryptopn.