Tool/software:
Hi Team ,
I referred 4 to 5 online calculators for aes 128 cbc encryption , none of them matches with the result provided in aes example code provided in mcu_plus_sdk . So , I need aes cbc 128bit encryption online calculator which should matches with the our example code result.
Regards,
K.Sravya.
I used the plain text, key and IV from crypto_aes_cbc_128.c:
/* Input buffer for encryption or decryption */
static uint8_t gCryptoAesCbc128PlainText[APP_CRYPTO_AES_CBC_128_INOUT_LENGTH] __attribute__ ((aligned (APP_CRYPTO_AES_CBC_128_CATCHE_ALIGNMENT))) =
{
0x98, 0x3B, 0xF6, 0xF5, 0xA6, 0xDF, 0xBC, 0xDA,
0xA1, 0x93, 0x70, 0x66, 0x6E, 0x83, 0xA9, 0x9A
};
/* The AES algorithm encrypts and decrypts data in blocks of 128 bits. It can do this using 128-bit or 256-bit keys */
static uint8_t gCryptoAesCbc128Key[APP_CRYPTO_AES_CBC_128_KEY_LENGTH_IN_BYTES] __attribute__ ((aligned (APP_CRYPTO_AES_CBC_128_CATCHE_ALIGNMENT))) =
{
0x93, 0x28, 0x67, 0x64, 0xA8, 0x51, 0x46, 0x73,
0x0E, 0x64, 0x18, 0x88, 0xDB, 0x34, 0xEB, 0x47
};
/* Initialization vector (IV) is an arbitrary number that can be used along with a secret key for data encryption/decryption. */
static uint8_t gCryptoAesCbc128Iv[APP_CRYPTO_AES_CBC_128_IV_LENGTH_IN_BYTES] __attribute__ ((aligned (APP_CRYPTO_AES_CBC_128_CATCHE_ALIGNMENT))) =
{
0x19, 0x2D, 0x9B, 0x3A, 0xA1, 0x0B, 0xB2, 0xF7,
0x84, 0x6C, 0xCB, 0xA0, 0x08, 0x5C, 0x65, 0x7A
};
I input it here:
AES Encryption: Encrypt and decrypt online - cryptii
It matches the encrypted text here:
/* Encrypted buffer of gCryptoAesCbc128PlainText */
static uint8_t gCryptoAesCbc128CipherText[APP_CRYPTO_AES_CBC_128_INOUT_LENGTH] __attribute__ ((aligned (APP_CRYPTO_AES_CBC_128_CATCHE_ALIGNMENT))) =
{
0x28, 0x33, 0xdc, 0xc7, 0x24, 0xdc, 0x6a, 0xff,
0x5a, 0x72, 0xe4, 0x3d, 0xdf, 0xb6, 0x63, 0x35
};